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The Project Coordinator is responsible for supporting the successful delivery of digital marketing campaigns, working closely with cross-functional, multi-project teams to ensure deliverables are completed on time and on budget, according to defined scope and timeline.
They will help build project pland and schedules, oversight of all project activities toward these objectives, applying technical, theoretical, and managerial skills to meet project requirements while fostering strong professional relationships, that include track progress, identify needs, support day-to-day project activities and foster relationships across team.
You Will:
You Have:
What We Offer
At Critical Mass, we value our employees and offer competitive compensation and benefits packages. If you’re looking for a challenging and rewarding opportunity to make a significant impact on the lives of our employees, we encourage you to apply for this exciting position today!
The Talent Team at Critical Mass focuses on providing the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
The Project Coordinator is responsible for supporting the successful delivery of digital marketing campaigns, working closely with cross-functional, multi-project teams to ensure deliverables are completed on time and on budget, according to defined scope and timeline.
They will help build project pland and schedules, oversight of all project activities toward these objectives, applying technical, theoretical, and managerial skills to meet project requirements while fostering strong professional relationships, that include track progress, identify needs, support day-to-day project activities and foster relationships across team.
You Will:
You Have:
What We Offer
At Critical Mass, we value our employees and offer competitive compensation and benefits packages. If you’re looking for a challenging and rewarding opportunity to make a significant impact on the lives of our employees, we encourage you to apply for this exciting position today!
The Talent Team at Critical Mass focuses on providing the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
Critical Mass is hiring an Account Director to lead marketing campaigns for a leading automotive brand. This is a hands-on leadership role embedded with the client, where your ability to deliver excellence in execution, maintain trusted relationships, and drive strategic updates will be front and center. If you thrive on collaboration, bring calm leadership under dynamic conditions, and excel at managing stakeholders while driving real work forward, this is your opportunity.
*This is a contract role covering a maternity leave from mid-June through September*
You Will:
You Have:
What We Offer:
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. To do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
The Front-End Developer (FED) is responsible for completing front-end tasks and providing support to AEM web applications. The FED is able to work independently in basic tasks, assuming ownership for the design and programming required. For more complex work, this individual will rely on existing designs and seek guidance from more senior team members. The FED should also be able to provide constant progress status to a senior level as needed and estimates for his tasks, that must be approved by his senior or technology lead of the current project. A FED works with web applications and a variety of front-end technologies including HTML5, JavaScript and CSS. You Will
You Have
What We Offer
At Critical Mass, we value our employees and offer competitive compensation and benefits packages. If you’re looking for a challenging and rewarding opportunity to make a significant impact on the lives of our employees, we encourage you to apply for this exciting position today!
The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
The Designer is responsible for the execution of high-quality visual and interactive web design deliverables, actively contributing to the successful implementation of website redesigns and scalable digital experiences.
This role focuses on crafting modern, engaging web experiences, combining strong visual design with interaction thinking. The Web Designer will contribute to end-to-end website redesigns, helping define layouts, UI components, and design systems that align with both user needs and business goals. By maintaining high design standards, strong attention to detail, and a proactive mindset, this role contributes to project success, client satisfaction, and the evolution of our creative culture.
You Will
You Have
What we offer:
At Critical Mass, we value our employees and offer competitive compensation and benefits packages. If you’re looking for a challenging and rewarding opportunity to make a significant impact on the lives of our employees, we encourage you to apply for this exciting position today!
The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
The ask stems from our want to:
Strengthen opportunity for continuous learning
Improve collaboration and team relationships.
Increase employee engagement
This work model balances the need for individual flexibility while maintaining the relentless customer focus we provide at CM. We understand that not everyone may feel comfortable with this expectation, so we ask that you please let us know immediately if there are any concerns so we can help navigate accordingly.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
The Front-End Developer (FED) is responsible for completing front-end tasks and providing support to AEM web applications. The FED is able to work independently in basic tasks, assuming ownership for the design and programming required. For more complex work, this individual will rely on existing designs and seek guidance from more senior team members. The FED should also be able to provide constant progress status to a senior level as needed and estimates for his tasks, that must be approved by his senior or technology lead of the current project. A FED works with web applications and a variety of front-end technologies including HTML5, JavaScript and CSS. You Will
You Have
What We Offer
At Critical Mass, we value our employees and offer competitive compensation and benefits packages. If you’re looking for a challenging and rewarding opportunity to make a significant impact on the lives of our employees, we encourage you to apply for this exciting position today!
The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
Critical Mass is looking for an exceptional VP, Strategy to lead strategic initiatives across a dynamic portfolio of premium brands and accounts spanning performance marketing, brand building, and customer experience domains. In this role, you'll operate at a high level across both brand and performance disciplines driving strategic excellence. This is an opportunity to work with some of the world's most recognizable brands, engage with clients, think strategically across channels, and build strong collaborative relationships.
Please note- this role is open to New York only and remote work is not an option.
You Will:
You Have:
Nice to Have:
What We Offer:
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work in the Calgary office for a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
As a Senior Art Director, you are excited to join a large creative team to develop experiences that support one of the oldest brands in America. Leading major marketing initiatives is what keeps bringing you back to the office—including championing concepts to plan cutting-edge online strategies. We will welcome your strong working knowledge of developing client relationships within experience design, brand development, and creative process. Gaining key management experience is important to you. Good news—you’ll lead the collaborative efforts of a talented group of creatives. And you always foster an environment for professional growth to inspire your team to exceed expectation. Most importantly, you’re a sound creative thinker who efficiently manages time to juggle client needs for world-class brands.
You Will:
You Have:
Nice-to-Haves:
What We Offer:
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
This position requires candidates to obtain a Level 2 Security Clearance in accordance with U.S. government regulations. As such, only U.S. citizens or permanent residents (Green Card holders) are eligible to apply.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
We seek a highly skilled and experienced General Accountant to join our dynamic finance team in San José, Costa Rica. This role will be instrumental in ensuring the accuracy and integrity of our financial reporting, managing complex accounting processes, and providing crucial support to the financial management. The ideal candidate will possess a strong understanding of accounting standards, tax regulations, and financial compliance, along with advanced analytical and problem-solving skills.
You will:
You have:
What We offer:
“The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week. The ask stems from our want to:
Strengthen opportunity for continuous learning
Improve collaboration and team relationships.
Increase employee engagement
We understand that not everyone may feel comfortable with this expectation, so we ask that you please let us know immediately if there are any concerns so we can help navigate accordingly.”
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
The Account Manager – Digital & Website Experience has responsibility for managing and growing the client relationship on one or more accounts under the direction of an Account Director or VP, Client Partner. The Account Manager provides client and project team leadership, develops mid-senior level client relationships, and is regarded by the client as a trusted advisor in all aspects of digital transformation and web platform strategy. The Account Manager serves as the leader of a specific project team focused on digital solutions, which partners with clients across key vertical markets. He or she is responsible for client satisfaction, account revenue growth, and overall business profitability in digital services delivery.
You Will:
You Have:
What We Offer:
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work in office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
The Project Manager reports to a Program Manager. Works closely with Directors and Subject Matter Experts, designers, developers and quality to ensure flawless project execution, efficient resource allocation, project financial sanity and client satisfaction. He/She supports grows project delivery discipline and helps to develop processes, documentation, standardization and tools. He/She is a key player on building high-energy, multi-disciplinary teams. He/She is interested, invested and passionate about the industry, the clients we serve, and the work produced.
You will:
You will:
Manage end-to-end campaign delivery: concepting, development, execution, trafficking, and evaluation.
Ensure the entire team understands the project tools and workflows (Smartsheet, Figma).
Facilitate clear communication between creatives, strategists, production, and account teams.
Identify blockers early, propose solutions, and keep the project moving forward.
Maintain a big-picture view of integrated campaigns, ensuring all components align within the ecosystem.
Support teams across North America and LATAM, navigating fast-paced, high-visibility projects.
Act as internal POC for assigned projects, including set-up and running of meetings, recording and distributing actions, flagging and communicating risks
Lead small to medium-sized projects with budgets likely under $500K and with teams of 10 or fewer, with direction from Associate Program Director or above
Collaborate to ensure the work stays on brief, client needs and feedback are understood and addressed, and the work delivered is of high quality
Communicate day-to-day with clients on project intake, status, and updates and facilitate conversations for clarity of feedback/setting of expectations
Work through dependencies and decisions required with internal teams and third parties • Identify and act on organic account growth opportunities in partnership with Client Services
Perform analysis and report on project health, attend finance meetings to inform account health (Metrics include: Remaining forecast, forecast to completion, burn (actuals) to date, % project progress, % budget utilized)
Facilitate (when appropriate) in project retrospective and sunsetting process
Act as a beacon of best practice within the account and discipline
Mentor emerging talent and provide career development aligned with CM expectations
Be an active and visible presence in the office and online, shares at Town Halls, All Hands, Snack N Learns
Actively and visibly champion the work and team
Participate in global Project Delivery initiatives and bring forward ideas on how to improve processes and build community within the discipline
You have:
What we offer:
At Critical Mass, we value our employees and offer competitive compensation and benefits packages. If you’re looking for a challenging and rewarding opportunity to make a significant impact on the lives of our employees, we encourage you to apply for this exciting position today!
The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
The ask stems from our want to:
Strengthen opportunity for continuous learning
Improve collaboration and team relationships.
Increase employee engagement
This work model balances the need for individual flexibility while maintaining the relentless customer focus we provide at CM. We understand that not everyone may feel comfortable with this expectation, so we ask that you please let us know immediately if there are any concerns so we can help navigate accordingly.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
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This role is part of the team responsible for delivering enterprise-level digital solutions using Adobe Experience Manager (AEM). The Back End Developer will act as a key contributor, providing expertise in AEM Cloud and Java development, and supporting the implementation process through high-quality, scalable code. You will collaborate closely with the Technical Lead, Technical Director, Project Management, and Frontend teams to deliver efficient and reliable solutions. This role is in the organization to provide expertise in specific platforms that are commonly leveragedby clients. Output of this role is to develop code as a part of the implementation process.
You Will:
You Have:
Nice to have:
What we offer:
At Critical Mass, we value our employees and offer competitive compensation and benefits packages. If you’re looking for a challenging and rewarding opportunity to make a significant impact on the lives of our employees, we encourage you to apply for this exciting position today!
The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
The ask stems from our want to:
Strengthen opportunity for continuous learning
Improve collaboration and team relationships.
Increase employee engagement
This work model balances the need for individual flexibility while maintaining the relentless customer focus we provide at CM. We understand that not everyone may feel comfortable with this expectation, so we ask that you please let us know immediately if there are any concerns so we can help navigate accordingly.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
As VP of Search, you’ll set the vision and direction for our global Search practice—leading best-in-class SEO, SEM, and Generative Engine Optimization (GEO) strategies across a diverse portfolio of clients and regions. You are the global leader and point of contact for Search within the agency, responsible for practice leadership, quality standards, capability growth, and operational excellence.
You’ll translate the evolving search landscape—including AI-powered discovery (AI Overviews, LLMs, and “answer engines”)—into actionable strategies, scalable frameworks, and measurable business outcomes. You balance executive-level client counsel with hands-on strategic depth, while building and sustaining a high-performing global team through strategic talent planning, staffing, and resourcing.
You’ll play a pivotal role in expanding our Search services and capabilities and helping our clients achieve top-tier performance. You define what great looks like, ensure we deliver it consistently, and evolve our offering to keep CM at the forefront of the industry.
*This is a one-year contract opportunity*
Practice leadership & operations
Client leadership & business growth
Innovation, AI search & future-proofing
Strategy & execution
You Have:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
As VP of Search, you’ll set the vision and direction for our global Search practice—leading best-in-class SEO, SEM, and Generative Engine Optimization (GEO) strategies across a diverse portfolio of clients and regions. You are the global leader and point of contact for Search within the agency, responsible for practice leadership, quality standards, capability growth, and operational excellence.
You’ll translate the evolving search landscape—including AI-powered discovery (AI Overviews, LLMs, and “answer engines”)—into actionable strategies, scalable frameworks, and measurable business outcomes. You balance executive-level client counsel with hands-on strategic depth, while building and sustaining a high-performing global team through strategic talent planning, staffing, and resourcing.
You’ll play a pivotal role in expanding our Search services and capabilities and helping our clients achieve top-tier performance. You define what great looks like, ensure we deliver it consistently, and evolve our offering to keep CM at the forefront of the industry.
*This is a one-year contract opportunity*
Practice leadership & operations
Client leadership & business growth
Innovation, AI search & future-proofing
Strategy & execution
You Have:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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As VP of Search, you’ll set the vision and direction for our global Search practice—leading best-in-class SEO, SEM, and Generative Engine Optimization (GEO) strategies across a diverse portfolio of clients and regions. You are the global leader and point of contact for Search within the agency, responsible for practice leadership, quality standards, capability growth, and operational excellence.
You’ll translate the evolving search landscape—including AI-powered discovery (AI Overviews, LLMs, and “answer engines”)—into actionable strategies, scalable frameworks, and measurable business outcomes. You balance executive-level client counsel with hands-on strategic depth, while building and sustaining a high-performing global team through strategic talent planning, staffing, and resourcing.
You’ll play a pivotal role in expanding our Search services and capabilities and helping our clients achieve top-tier performance. You define what great looks like, ensure we deliver it consistently, and evolve our offering to keep CM at the forefront of the industry.
*This is a one-year contract opportunity*
Practice leadership & operations
Client leadership & business growth
Innovation, AI search & future-proofing
Strategy & execution
You Have:
*Please note, the pay range noted below is hourly*
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
As VP of Search, you’ll set the vision and direction for our global Search practice—leading best-in-class SEO, SEM, and Generative Engine Optimization (GEO) strategies across a diverse portfolio of clients and regions. You are the global leader and point of contact for Search within the agency, responsible for practice leadership, quality standards, capability growth, and operational excellence.
You’ll translate the evolving search landscape—including AI-powered discovery (AI Overviews, LLMs, and “answer engines”)—into actionable strategies, scalable frameworks, and measurable business outcomes. You balance executive-level client counsel with hands-on strategic depth, while building and sustaining a high-performing global team through strategic talent planning, staffing, and resourcing.
You’ll play a pivotal role in expanding our Search services and capabilities and helping our clients achieve top-tier performance. You define what great looks like, ensure we deliver it consistently, and evolve our offering to keep CM at the forefront of the industry.
*This is a one-year contract opportunity*
Practice leadership & operations
Client leadership & business growth
Innovation, AI search & future-proofing
Strategy & execution
You Have:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
This role is responsible for executing on the account and office-level vision and priorities within the organization.
The main output of the role is to lead Marketing Science deliverables across a broad range of initiatives.
Career development is typically provided by Marketing Science Leads, but may be adapted depending on the account or office location.
The nature of the role is that of an influencer, expected to understand Marketing Science at an intermediate level and lead project contribution requirements for client-facing deliverables.
Ability to solve complex problems independently while advancing workstreams and influencing the project team.
Lead execution of Marketing Science deliverables across multiple initiatives.
3 -5 years of experience with at least two of the following areas:
Data architecture (ETL / data integration)
Automated data ingestion and reporting
Data science and statistical programming
Testing and personalization
Data visualization
Website platform implementation
Ability to communicate business insights effectively to clients through logical, clear, and easy-to-understand narratives.
Ability to structure and lead status meetings.
Ability to manage multiple deliverables simultaneously and transition seamlessly between them.
Contribute analytics content to pitch materials and RFPs.
Curiosity
Critical thinking, especially to overcome analytical or project roadblocks
Effective communication
Proficient understanding of:
Adobe Analytics
Google Analytics
Media tools
Applied understanding of how to navigate analytical and technical challenges.
Intermediate knowledge and working experience with agency technology platforms.
Spearhead analytical workstreams and guide teams on delivery and project ownership requirements.
Provide work direction and mentorship to Analysts and Associate Analysts.
Lead the ideation, development, and execution of measurement strategies and frameworks.
“The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
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Director of User Experience
As Director of User Experience, you're the rare leader who thinks like both a strategist and an artist. You speak fluent UX—information architecture, research, usability—but you also speak design—visual systems, motion, art direction. And increasingly, you speak AI: architecting conversational interfaces, exploring vibe-coded experiences, leveraging machine learning to create next-gen user experiences. You understand that great design extends beyond owned platforms—into the interfaces you design within third-party and media channels where you partner to maximize user engagement. You're looking to build and lead a team of UX and Product Designers who are equally fired up about creating experiences that are strategically sound, visually stunning, and genuinely innovative.
You juggle multiple complex projects without breaking a sweat, pivoting between high-level strategy sessions and detailed design feedback. You're the collaborator who bridges disciplines—connecting research to design, design to development, and all of it to business outcomes. You thrive in fast-paced environments, champion the user's voice against competing agendas, and mentor your team with the same rigor you apply to your own work. This role demands someone energized by the full spectrum of design—from wireframe to final pixel.
You Will:
You Have:
What We Offer:
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
Director of User Experience
As Director of User Experience, you're the rare leader who thinks like both a strategist and an artist. You speak fluent UX—information architecture, research, usability—but you also speak design—visual systems, motion, art direction. And increasingly, you speak AI: architecting conversational interfaces, exploring vibe-coded experiences, leveraging machine learning to create next-gen user experiences. You understand that great design extends beyond owned platforms—into the interfaces you design within third-party and media channels where you partner to maximize user engagement. You're looking to build and lead a team of UX and Product Designers who are equally fired up about creating experiences that are strategically sound, visually stunning, and genuinely innovative.
You juggle multiple complex projects without breaking a sweat, pivoting between high-level strategy sessions and detailed design feedback. You're the collaborator who bridges disciplines—connecting research to design, design to development, and all of it to business outcomes. You thrive in fast-paced environments, champion the user's voice against competing agendas, and mentor your team with the same rigor you apply to your own work. This role demands someone energized by the full spectrum of design—from wireframe to final pixel.
You Will:
You Have:
What We Offer:
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
We are looking to add Freelance Associate Creative Directors to our Talent Roster for quick turnaround, shorter-term project engagements!
As an Associate Creative Director, you bring a creative voice with strategic thinking to projects. You have a diverse array of experiences to bring to the roll—from conceptual development to client relations to the execution of creative deliverables. Creating and communicating concepts, creating and implementing marketing strategies, and developing interactive solutions is on you. But you always ensure and rationalize all creative results against user experience management objectives to deliver excellent digital experiences.
Leading multidisciplinary teams—creative, technology, planning, account and project management, partners, and clients to name a few—doesn’t faze you. Balancing creative thinking with interpersonal skills, you justify concepts to both the client and the project team. You build long-term client relationships with expertise on client vertical markets. Most importantly, you embody and embrace our values—to be honest, inspired, drive, passionate and real—in everything you do.
You Will:
You Have:
Nice To Have
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
We are looking to add Freelance Associate Creative Directors to our Talent Roster for quick turnaround, shorter-term project engagements!
As an Associate Creative Director, you bring a creative voice with strategic thinking to projects. You have a diverse array of experiences to bring to the roll—from conceptual development to client relations to the execution of creative deliverables. Creating and communicating concepts, creating and implementing marketing strategies, and developing interactive solutions is on you. But you always ensure and rationalize all creative results against user experience management objectives to deliver excellent digital experiences.
Leading multidisciplinary teams—creative, technology, planning, account and project management, partners, and clients to name a few—doesn’t faze you. Balancing creative thinking with interpersonal skills, you justify concepts to both the client and the project team. You build long-term client relationships with expertise on client vertical markets. Most importantly, you embody and embrace our values—to be honest, inspired, drive, passionate and real—in everything you do.
You Will:
You Have:
Nice To Have
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
As the Media Director, you'll lead strategic media planning and execution to drive business performance, while building strong relationships with clients across all facets of the organization. You’ll set media objectives, manage client relationships, and oversee campaign execution across key platforms like DSPs, Google, META, and TTD. You’ll guide and mentor your team, using data insights to optimize performance, deliver innovative solutions, and ensure campaign accuracy and efficiency.
The Role:
We are seeking a Director to drive thought leadership and help shape strategic and holistic media strategies for a new, B2B client. The Director will act as the client lead, partnering with clients to address changes in media landscape and working with all key client stakeholders and agency partner teams to develop strategy and plans to execute media most effectively across media tactics including print, search, social, display, programmatic video, print and TV.
You will:
· Lead the media planning and investment efforts for all campaigns, focusing on performance-driven strategies.
· Maintain a strong understanding of the client’s business, with an eye toward future opportunities
· Responsible for ongoing thought leadership and opportunities that will drive client business results
· Key lead for client relationship, responsible for team oversight and ensuring performance is meeting client’s goals
· Responsible for coordinating and leading larger Business reviews (QBRs, Annual Planning, etc.), providing performance insights with actionable recommendations
· Lead account strategy development, including annual budget planning, KPIs, partner selection, new tactics, and tracking industry developments and recommending new tactics when applicable.
· Demonstrate initiative by exploring new media solutions, utilizing strategic thinking and creativity to develop innovative alternatives.
· Oversee media execution, ensuring timely delivery against key milestones, including buy negotiations, live dates, and performance reporting.
· Develop and implement media strategies across DSPs, Google, Search, META (paid social), and TTD, ensuring optimal use of platforms.
· Manage and mentor the development of the team, fostering their skills and supporting career growth.
· Lead the process of compiling and interpreting media research to inform media plan development and recommendations.
· Contribute to the development of competitive analysis to deepen knowledge of the competitive landscape and inform media strategies.
You have:
· 8+ years’ experience in media planning and investment, focusing on performance, mid-to-upper funnel, Search, Social, and Programmatic across multiple campaigns.
· At least 5 years of management experience.
· Proven ability to integrate media, creative, and brand objectives, collaborating with cross-functional teams.
· Experience managing client relationships, ensuring alignment and timely execution of media plans.
· Hands-on campaign execution, using data and insights to optimize performance.
· Agency experience, particularly with integrated media campaigns.
· Proficiency in TTD or DV360, search platforms, and media planning tools.
· Strategic partner mindset, offering insights and recommendations to optimize results.
· Experience managing multi-million-dollar media budgets, ensuring efficient allocation and ROI.
· Up to date with industry trends, fostering innovation through continuous learning.
· Strong analytical, strategic thinking, and communication skills.
· Proven media buying and negotiation expertise.
· Clear understanding of the media planning, buying, and reporting process.
· Ability to work independently and as part of a team.
· Proficiency in proprietary analytics and syndicated research tools.
· Solid verbal and written communication skills, with polished presentations skills a must
· Ability to work successfully with teams on multiple projects under tight deadlines
· Ability to sell ideas clearly and deliver value
· Knowledge of offline media planning
· Experience in marketing for B2B clients or utilizing first-party data as part of media strategy
What We Offer
· Global maternity and parental leave
· Competitive benefits packages
· Vacation, compassionate leave, personal/sick days, and flex days
· Access to online services for families and new parents
· Early Dismissal Friday’s (off at 3:00 PM local time every Friday)
· 13 affinity groups
· Internal learning and development programs
· Enterprise-wide employee disco
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
We are looking to add Freelance Lead User Experience Designers to our Talent Roster for quick turnaround, shorter-term project engagements!
As Lead User Experience Designer, you're the rare leader who thinks like both a strategist and an artist. You speak fluent UX—information architecture, research, usability—but you also speak design—visual systems, motion, art direction. And increasingly, you speak AI: architecting conversational interfaces, exploring vibe-coded experiences, leveraging machine learning to create next-gen user experiences. You understand that great design extends beyond owned platforms—into the interfaces you design within third-party and media channels where you partner to maximize user engagement. You're looking to build and lead a team of UX and Product Designers who are equally fired up about creating experiences that are strategically sound, visually stunning, and genuinely innovative.
You juggle multiple complex projects without breaking a sweat, pivoting between high-level strategy sessions and detailed design feedback. You're the collaborator who bridges disciplines—connecting research to design, design to development, and all of it to business outcomes. You thrive in fast-paced environments, champion the user's voice against competing agendas, and mentor your team with the same rigor you apply to your own work. This role demands someone energized by the full spectrum of design—from wireframe to final pixel.
You will:
You have:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
We are looking to add Freelance Lead User Experience Designers to our Talent Roster for quick turnaround, shorter-term project engagements!
As Lead User Experience Designer, you're the rare leader who thinks like both a strategist and an artist. You speak fluent UX—information architecture, research, usability—but you also speak design—visual systems, motion, art direction. And increasingly, you speak AI: architecting conversational interfaces, exploring vibe-coded experiences, leveraging machine learning to create next-gen user experiences. You understand that great design extends beyond owned platforms—into the interfaces you design within third-party and media channels where you partner to maximize user engagement. You're looking to build and lead a team of UX and Product Designers who are equally fired up about creating experiences that are strategically sound, visually stunning, and genuinely innovative.
You juggle multiple complex projects without breaking a sweat, pivoting between high-level strategy sessions and detailed design feedback. You're the collaborator who bridges disciplines—connecting research to design, design to development, and all of it to business outcomes. You thrive in fast-paced environments, champion the user's voice against competing agendas, and mentor your team with the same rigor you apply to your own work. This role demands someone energized by the full spectrum of design—from wireframe to final pixel.
You will:
You have:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
This role is responsible for executing on the account and office-level vision and priorities within the organization.
The main output of this role is to own Marketing Science deliverables across a broad range of initiatives.
Career development is typically provided by Marketing Science Leads, but may be adapted depending on the account or office location.
The nature of the role is that of a learner, expected to develop an intermediate understanding of Marketing Science while owning project contributions for client-facing deliverables.
2-3 years of demonstrated experience with at least two of the following areas:
Testing and optimization
Statistics
Data visualization
Tagging
Reporting
Ability to communicate complex analysis clearly and effectively in an easy-to-understand manner.
Ability to communicate effectively with day-to-day clients.
Ability to compose client communications with clear grammar and structure.
Ability to support colleagues in selling analytics work.
Ability to manage multiple deliverables simultaneously and transition efficiently between them.
Ability to present low to mid-complexity projects confidently to internal stakeholders.
Understanding of the following concepts (as relevant to the role):
Main forms of digital marketing and how they differ
How traditional advertising is planned and executed
Different types of media channels
Principles of Search Engine Marketing (SEM)
How CRM activities are planned and executed
How market research can enhance analytics work
Curiosity
Critical thinking
Proficient understanding of:
Adobe Analytics
Google Analytics
Media tools
Basic ability to navigate technical or analytical challenges.
Intermediate knowledge and working experience with agency technology platforms.
Solve well-defined analytical problems with guidance.
Work closely with and mentor Associate Analysts.
Assist in the ideation, development, and execution of measurement strategies and frameworks.
What We Offer:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
Marketing Science Analyst (Test & Learn)
San Jose, Costa Rica
As a Marketing Science Analyst, your curiosity never ends. The next question is always on your mind, helping you to understand how marketing science fits in the big picture of a project. You bring in 1 to 3 years of experience, owning marketing science deliverables across a broad range of initiatives, with a strong focus on in-market testing and evaluation. You understand the nature and purpose of the main Digital marketing channels, enjoy collaborating with others, and are able to communicate clearly and effectively.
You will:
You have:
What We Offer:
At Critical Mass, we value our employees and offer competitive compensation and benefits packages. If you’re looking for a challenging and rewarding opportunity to make a significant impact on the lives of our employees, we encourage you to apply for this exciting position today!
The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
The ask stems from our want to:
Strengthen opportunity for continuous learning
Improve collaboration and team relationships.
Increase employee engagement
This work model balances the need for individual flexibility while maintaining the relentless customer focus we provide at CM. We understand that not everyone may feel comfortable with this expectation, so we ask that you please let us know immediately if there are any concerns so we can help navigate accordingly.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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Critical Mass’ Internship opportunities are part of our Trailhead Program and provide a 12-week jump-start to your career. The program is designed to fast-track your growth through regular learning opportunities, mentorship, and hands-on client work - all while earning a competitive stipend. You’ll get a firsthand look at the exciting work we do at Critical Mass and experience what it’s like to be an integral part of our team. This internship gives you the chance to explore the digital agency world and client projects to see if it’s the right fit for you.
Our internship will run from May 26 – August 14.
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of three days per week.
As the Marketing Science Intern you will gain understanding of all aspects of how Marketing Science contributes to Critical Mass’ client offerings. You will learn about the day-to-day activities of the marketing science program and assist in developing innovative products and deliverables. The major objective is to perfect existing skills, learn and understand new measurement methods and tools used to capture, assemble and organize data into something meaningful.
You Will:
You Have:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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This role is responsible for leading the execution of the account and office-level vision and priorities within the organization.
The main output of the role is to deliver Marketing Science projects, deliverables, and related work to clients across a broad range of initiatives.
Career development is typically provided by Marketing Science Directors or Senior Directors, but may be adapted depending on the account or office location.
The nature of the role is that of a leader, expected to understand Marketing Science at an advanced level and lead project contributions for client-facing deliverables.
Identify, build, and lead teams to solve complex business and analytical problems.
Provide leadership over project delivery and ownership requirements.
Manage both Analysts’ deliverables and your own deliverables, ensuring that the Marketing Science Associate Director or Director maintains visibility into project progress.
5-8 years of experience with at least two and deep understanding of at least four of the following areas:
Data architecture (ETL / data integration)
Automated data ingestion and reporting
Data science and statistical programming
Testing and personalization
Data visualization
Website platform implementation
Excel in data storytelling.
Guide junior team members in translating findings into clear and actionable insights for clients and stakeholders.
Participate in business development activities, including:
Shaping analytics content
Recommending methodologies and technologies
Estimating level of effort
Supporting appropriate resource allocation
Provide feedback and refinement for presentations.
Deliver high-level presentations to both internal and external stakeholders.
Strong interpersonal and team-building skills.
Ability to foster a cohesive and effective work environment.
Proactively check in and report on team members’ needs.
Ability to refine communication to meet client expectations and business objectives.
Strong capability to communicate effectively with senior clients and stakeholders.
Advanced understanding of:
Adobe Analytics
Google Analytics
Media tools
Ability to navigate technical and analytical challenges.
Advanced knowledge and practical experience with agency technology platforms.
Provide work and team leadership across projects.
Ensure project delivery standards and ownership are maintained.
Lead the ideation, development, and execution of measurement strategies and frameworks.
Provide career development guidance, leadership, and support to Analysts and Analyst teams.
Support Marketing Science Directors and Senior Directors in scoping Marketing Science staffing and team management needs.
What We Offer:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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As a Marketing Science Senior Analyst, you will co-lead the design and execution of measurement strategies, advanced analytics, and content intelligence programs that drive media performance in B2B environments.
You will partner with stakeholders to translate business objectives into KPIs, build scalable frameworks, and deliver actionable insights that optimize campaigns across creation and progression. Your expertise in data science, reporting, and testing ensures that marketing investments are measurable, transparent, and continuously optimized.
You will:
Measurement Strategy
Content Intelligence & Insights
Advanced Analytics
Learning Program
Data & Dashboards
Tagging, Trafficking & Taxonomy
Collaboration & Leadership
You have:
This role ensures that media marketing science is directly tied to business outcomes. By building robust measurement frameworks, delivering content intelligence, and driving advanced analytics, you will empower enterprise clients to optimize campaigns, enhance customer experiences, and achieve measurable growth in B2B markets.
What We Offer:
“The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week. The ask stems from our want to:
Strengthen opportunity for continuous learning
Improve collaboration and team relationships.
Increase employee engagement
We understand that not everyone may feel comfortable with this expectation, so we ask that you please let us know immediately if there are any concerns so we can help navigate accordingly.”
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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Critical Mass is seeking a results-driven Senior Account Manager to work on one of our largest automotive accounts. Based in New York, you’ll collaborate closely with internal teams and the client to deliver impactful digital solutions for a leading global brand. If you’re passionate about client partnership and driving successful campaigns, we want to hear from you.
As a Senior Account Manager, you are the client’s champion within the agency. You’re looking to flex your skills growing and managing client relationships, but you still want some direction. Good news—you’ll get strategic guidance from an Account Director or Client Partner. Client satisfaction, account revenue growth, and overall business profitability is on your shoulders—but you’re up to the challenge. Most importantly, you’ll be a leader within the agency and your clients—from mid to senior level—regard you as a trusted advisor to deliver excellent digital experiences. This role is an initial temporary contract with a view to going permanent.
You will:
You have:
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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As a Freelance Senior Designer, you will develop breakthrough creative concepts that translate visually across interactive platforms for web-based marketing initiatives and product launches. You're an original thinker and collaborative leader—matching strategic direction with elegant design solutions for our client's homepage and other platforms. You'll work closely with creative and technical disciplines while maintaining strong brand principles and systematic design rationale. Most importantly, you possess expert-level proficiency in design applications and prototyping tools, with exceptional attention to detail.
Contract Details:
You Will:
You Have:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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This role is for a post-production expert, with experience in motion graphics, editorial, VFX and general post-production pipelines.
You will be working with global clients across some of the biggest brands in the world. Your role will range from creating sizzle reels, to managing extensive post-production pipelines, including projects originating in Unreal Engine that move through VFX , compositing and color grading workflows.
You at times will be working with a large team, with motion artists, 3D artists, editors, sound artists, creative directors, and producers globally, so an ability to work and collaborate with a team is important.
You Will:
You Have:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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Critical Mass is hiring for a contract Sr Project Manager. This is a high-visibility contract role on a dynamic communications team creating world-class digital marketing material. You'll work on exciting projects with tight timelines, meaningful scope, and the opportunity to make an immediate impact. If you're someone who thrives when challenges are real, timelines are tight, and excellence is non-negotiable, this is the role for you.
This role is a contract role from May 4, 2026 through Sept 25, 2026.
You Will:
You Have:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
Critical Mass is hiring for a contract Sr Project Manager. This is a high-visibility contract role on a dynamic communications team creating world-class digital marketing material. You'll work on exciting projects with tight timelines, meaningful scope, and the opportunity to make an immediate impact. If you're someone who thrives when challenges are real, timelines are tight, and excellence is non-negotiable, this is the role for you.
This role is a contract role from June 1 through Sept 25, 2026. Due to confidentiality requirements, this role’s requisite is to work in our Calgary office 5 days per week.
You Will:
You Have:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
Critical Mass is hiring for a contract Sr Project Manager. This is a high-visibility contract role on a dynamic communications team creating world-class digital marketing material. You'll work on exciting projects with tight timelines, meaningful scope, and the opportunity to make an immediate impact. If you're someone who thrives when challenges are real, timelines are tight, and excellence is non-negotiable, this is the role for you.
This role is a contract role from May 4, 2026 through Sept 25, 2026.
You Will:
You Have:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
Critical Mass is hiring for a contract Sr Project Manager. This is a high-visibility contract role on a dynamic communications team creating world-class digital marketing material. You'll work on exciting projects with tight timelines, meaningful scope, and the opportunity to make an immediate impact. If you're someone who thrives when challenges are real, timelines are tight, and excellence is non-negotiable, this is the role for you.
This role is a contract role from May 4, 2026 through Sept 25, 2026.
You Will:
You Have:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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As a Senior Strategist at CM, you'll serve as a strategic orchestrator bringing together insights, creativity, and channel expertise into cohesive, omni-channel, high-impact campaigns and digital experiences. You're the connective tissue between our creative partners, media team, CRM specialists, and web strategists—translating big-picture brand vision into integrated 360-degree plans that drive real results. This is a unique opportunity to work on a brand that is known for quirky, lifestyle-driven creative and genuine freedom to innovate. You'll see the direct impact of your work, and you will be a strategic thought partner with real influence.
Please note, you are applying to an active job opening.
You Will:
You Have:
Bonus if you have:
What We Offer:
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. To do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
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As a Senior User Experience Designer, you determine the user experience of our clients’ digital products. You have acute self-awareness and deep empathy for both the customer and our clients' goals. Organizing content, developing information architectures, documenting scenarios and use cases, and delivering detailed wireframes and function specifications is your day-to-day.
You’ll own areas of work from design through to completion—including shaping major features and the design and development process—to ensure that work is reviewed for quality assurance and milestones are met successfully and on time.
You Will:
You Have:
What We Offer:
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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As Social Strategy Director, you'll be the strategic leader and trusted advisor onsite with one of our key clients in Nashville. The right candidate for this role will know how to develop and articulate compelling social strategy while leading the creative vision and content direction that moves the needle in a regulated digital communication space. You'll partner closely with our internal teams and external partners to bring strategic concepts to life and become a key leader in CM’s social group.
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
You will:
You have:
Nice-to-Haves:
What we offer:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
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As a User Experience Designer, you’ll shape the user experience of our clients’ digital products with a focus on intuitive, elegant, and technically sound solutions. You’ll bring deep empathy for both the end user and our clients’ business goals while balancing creativity and technical feasibility.
Your day-to-day will include organizing content, developing information architectures, documenting scenarios and use cases, and delivering detailed wireframes and functional specifications. You’ll own key areas of work from design through completion—shaping major features, contributing to the design and development process, and ensuring milestones are met on time with high-quality outcomes.
This role will be client facing. You’ll join team meetings, represent the creative mission, and collaborate directly with cross-functional stakeholders beyond the design team. You’ll need to navigate complex technical environments, engage with developers, and become a subject matter expert on the systems you’re designing for.
You Will
You Have
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
Project Manager profiles
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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As the VP of Media, you will lead the development and execution of media strategies across key client accounts. The ideal candidate brings over 10 years of diverse media experience, with a strong emphasis on digital, and has a proven track record of managing and developing high-performing teams of 10 or more professionals. This role requires a confident, decisive leader who excels in client-facing settings, communicates effectively, and drives strategy, planning, and recommendations grounded in data-driven insights. Your leadership will be integral in shaping and optimizing media strategies that deliver measurable results for our clients.
You Will:
You Have:
Nice-to-Haves:
What We Offer:
The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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As the VP of Media, you will lead the development and execution of media strategies across key client accounts. The ideal candidate brings over 10 years of diverse media experience, with a strong emphasis on digital, and has a proven track record of managing and developing high-performing teams of 10 or more professionals. This role requires a confident, decisive leader who excels in client-facing settings, communicates effectively, and drives strategy, planning, and recommendations grounded in data-driven insights. Your leadership will be integral in shaping and optimizing media strategies that deliver measurable results for our clients.
You Will:
You Have:
Nice-to-Haves:
What We Offer:
The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
As the VP of Media, you will lead the development and execution of media strategies across key client accounts. The ideal candidate brings over 10 years of diverse media experience, with a strong emphasis on digital, and has a proven track record of managing and developing high-performing teams of 10 or more professionals. This role requires a confident, decisive leader who excels in client-facing settings, communicates effectively, and drives strategy, planning, and recommendations grounded in data-driven insights. Your leadership will be integral in shaping and optimizing media strategies that deliver measurable results for our clients.
You Will:
You Have:
Nice-to-Haves:
What We Offer:
The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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ACCOUNT COORDINATOR
The Account Coordinator is the “right-hand” person reporting to the Account Manager and/or VP, Client Partner. This person will be an integral part of the Account Management team in the organization of agendas, responding appropriately to various correspondence and coordinating meetings, travel and expenses. The Account Coordinator will prepare and organize special presentations, document meeting minutes, as well as prepare reports and ad hoc materials.
Responsibilities:
Requirements:
What We Offer:
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work in office a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
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Apply to Critical MassShare this job
Critical Mass is hiring an Account Manager to join our team on ArtBot! ArtBot is a next-generation content orchestration platform, combining creative and performance engineering with AI-driven technology to unlock automation and performance at scale. We specialize in data-driven, personalized creative across digital channels, helping clients realize the full value of Dynamic Creative Optimization (DCO).
Join a dynamic team at the intersection of creative, media, and technology, where your work directly shapes client success and the future of content delivery.
You Will:
You Have:
What We Offer:
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work in our New York office for a minimum of 3 days a week.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
The Art Director is responsible for conceptual development and the execution of creative deliverables. These responsibilities include creating and communicating concepts, implementing marketing strategies and developing interactive design solutions. Reporting to the Creative Director, the Art Director will work with and lead a collaborative team of designers, copywriters and production specialists. Balancing creative thinking with interpersonal skills, this person will demonstrate an ability to justify concepts to both the client and the project team.
Contract Details:
You Will:
You Have:
*The range listed below is hourly*
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
The Art Director is responsible for conceptual development and the execution of creative deliverables. These responsibilities include creating and communicating concepts, implementing marketing strategies and developing interactive design solutions. Reporting to the Creative Director, the Art Director will work with and lead a collaborative team of designers, copywriters and production specialists. Balancing creative thinking with interpersonal skills, this person will demonstrate an ability to justify concepts to both the client and the project team.
Contract Details:
You Will:
You Have:
*The range listed below is hourly*
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
The Art Director is responsible for conceptual development and the execution of creative deliverables. These responsibilities include creating and communicating concepts, implementing marketing strategies and developing interactive design solutions. Reporting to the Creative Director, the Art Director will work with and lead a collaborative team of designers, copywriters and production specialists. Balancing creative thinking with interpersonal skills, this person will demonstrate an ability to justify concepts to both the client and the project team.
Contract Details:
You Will:
You Have:
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassShare this job
As Associate Director of User Experience, you are accountable for the quality, clarity, and direction of UX across multiple high-visibility initiatives. You help define how UX thinking shows up in work, teams, and stakeholder relationships—setting standards, shaping decisions, and guiding trade-offs across complex problem spaces. You operate with clear authority over UX direction while partnering closely with creative, strategy, and technology leadership.
You lead through design intelligence, clarity of thinking, and proximity to the work. You bring deep UX design judgment—systems thinking, information architecture, interaction design—alongside strong visual and experiential sensibility. You are comfortable working directly in design artifacts to shape direction, translate complexity into clarity, and raise the quality of thinking and craft across the team. Your authority comes from UX design IQ and hands-on guidance—not distance from the work.
You bring a grounded, thoughtful approach to working with people—supporting designers, contributing to hiring, and helping shape a team culture that values clarity, respect, and high-quality work.
You will:
You have:
Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week.
What We Offer:
Please note you are applying to an active job posting.
Critical Mass is an equal opportunity employer.
Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.
The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.
If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx
Ready to apply?
Apply to Critical MassCookies & analytics
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