Kayzen
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Europe, Remote
________________________
Hello👋 I am Idan, Growth Lead at Kayzen, and I am now looking for a Customer Success Manager to join our global team 🙌
In this role, you will play a vital role in driving customer satisfaction, fostering long- term relationships and contributing to the overall growth and success of the company.
But wait, you have not heard of Kayzen before?😃
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options. Built on the core pillars of performance, transparency, control, and empowerment, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The Team
The CSM team serves a dual-purpose role within the organization, acting as a crucial link between our customers and our product & service offerings. This position is instrumental in understanding and addressing customer needs, ensuring that our solutions are aligned with their goals and challenges. Additionally, the CSM is responsible for developing comprehensive account strategies that focus on growth and customer success, owning the execution of the same along with the Trading Team and other internal stakeholders.
To succeed in this role you need:
- In-Depth Mastery of Kayzen DSP for Client Success
- Strategic Client Management and Campaign Excellence
- Leading in Industry Knowledge and Trends
- Client Advocacy and Relationship Building
Sounds interesting, doesn't it?
Responsibilities
We are seeking a highly proactive Customer Success Manager who will take full ownership of customer relationships. The ideal candidate will have a solutions-oriented mindset and provide clients with proactive consultations and data-driven campaign optimization recommendations on a daily basis.
- Customer Success Management
- Form a deep understanding of the client’s business & goals
- Provide DSP advisory and strategic consultation from the onboarding phase
- Maintain detailed internal documentation of client information (Hubspot), interactions (call notes), feature requests (product wishlist), and campaign strategies
- Conduct engaging and informative Quarterly Business Reviews focusing on learnings, growth opportunities, and evangelizing on product roadmap
- Account Strategy and Campaign Management
- Co-manage and optimize campaigns with the Client or Trading team, analyzing aggregate performance and log-level data to improve strategies.
- Report on account progress weekly / bi-weekly to internal and external stakeholders (client, PSS Lead, Product teams, etc)
- Set and achieve monthly and quarterly growth and milestone targets together with your Team Lead.
- Owning end-to-end client success and results through proactive optimizations, troubleshooting, and coordination
- Feedback Loop and Product Development
- Proactively identify and address emerging client needs
- Work closely with the product team on enhancements based on client feedback.
- Efficiently troubleshoot issues and communicate them to the product and technical teams
- Provide regular feedback to management about client needs, market & competitor intelligence
Requirements
- 2+ years of experience managing performance-driven web clients – must-have.
- Hands-on experience with programmatic or digital advertising platforms.
- Proven ability to build and drive processes that truly move the needle for clients.
- Capable of working independently and collaboratively
- Strong analytical skills: able to dig into data, spot trends, and turn insights into action.
- A proactive mindset: you’re comfortable tackling challenges and finding solutions quickly.
- Attention to detail
What do we offer?
- Exceptional career growth and learning opportunity
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- Direct, day-to-day work experience with the management
- A fun, driven, and multinational team located across Germany, India, UK, Argentina, Ukraine, Turkey, Spain and many more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
Remote India, Bangalore
________________________
Hello 👋 I am Andrew, General Manager Revenue at Kayzen, and I am now looking for a Sales Development Representative to join my team. 🙌
But wait, you have not heard of Kayzen before? 😃
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options.
Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage.
With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The role
This role offers a chance to shape our growth in key global markets. We're looking for an ambitious and smart individual ready to launch a sales career in mobile advertising.
The Sales Development Representative will be responsible for generating meetings for our sales team with relevant potential customers who are large and well-known app developers.
Responsibilities
- Proactively identify and map out potential customers who are large and well-known app developers
- Conduct in-depth market research to define target audiences and key decision-makers
- Craft personalized outreach messages via LinkedIn, email, and calls to generate interest and schedule meetings
- Maintain a high volume of outbound activity (e.g., emails, calls, LinkedIn messages) while focusing on quality engagement
- Develop and maintain strong relationships with prospects by understanding their strategy, needs, challenges, and budgets to assess product relevance
- Analyze market trends, competitor activities, and customer needs to refine outreach strategies
- Keep company CRM tools up to date and ensure records are well maintained
Requirements
- 1+ years experience working as a Sales Development Representative or similar role
- Mobile or AdTech experience is a plus
- Proven sales skills, with the ability to research, engage, and build rapport with prospects
- Strong organizational skills with the ability to prioritize and manage multiple tasks effectively
- Sales skills, self-driven research, persistence, and determination
- Familiarity with tools such as LinkedIn Sales Navigator, Loom, Apollo or Lusha
- Knowledge of and experience in using AI tools
- Team player with good, structured communication skills and proficiency in English
- A degree in Business, Marketing, or a related field is a plus but not mandatory
What do we offer?
- Exceptional career growth and learning opportunity
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- Direct, day-to-day work experience with the management
- A fun, driven, and multinational team located across Germany, India, Israel, UK, Argentina, Ukraine, Turkey, Spain and soon more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
Remote EMEA
________________________
Hello, I am Tomás, Global Supply and Partnerships Lead at Kayzen, and I am looking for a Programmatic Supply Specialist to strengthen our Supply Partnerships team. In this role, you will directly manage supply partners, drive performance improvements across key accounts, and ensure the highest quality of inventory on our platform.
This is a hands-on, high-impact role at the intersection of partner management, data analysis, and technical troubleshooting.
But wait, you have not heard of Kayzen before?😃
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through our self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The Team
The Supply Team lies at the intersection of demand and supply within Kayzen, that is we are responsible for the accessibility, efficiency, quality and development of ad inventory our customers access through the Kayzen DSP. Leveraging years of expertise in mobile programmatic supply, we ensure Kayzen’s customers gain access to the right inventory for their campaigns. Additionally, the Supply Team works closely with most of the teams at Kayzen, such as the Product Team in identifying new relevant signals available on bid requests, or the Marketing Team, in generating supply insights for thought leadership content.
Responsibilities
Partner Management
- Own and manage relationships with key Ad Exchanges and publishers
- Run regular check-ins and Quarterly Business Reviews (QBRs) with key partners
- Monitor partner performance and identify and execute growth opportunities
- Evaluate technical integrations and drive improvements where needed
- Track and resolve media cost discrepancies and other troubleshooting in collaboration with internal teams
Internal Supply Liaison
- Act as the bridge between Supply and commercial teams
- Support a customer- and revenue-centric supply strategy
- Monitor supply performance across top 5–10 strategic accounts
- Translate customer account-level insights into actionables for exchanges.
- Identify and unlock performance opportunities across supply partners
Troubleshooting & Inventory Quality Management
- Partner closely with the Product Support team to resolve supply-related issues
- Investigate and troubleshoot campaign delivery and performance challenges
- Analyze inventory data (e.g. bid requests, loss notifications) to foster data-driven decisions
- Identify quality issues and optimization opportunities within the supply chain
Requirements
- 2+ years of experience in programmatic advertising, preferably managing supply (e.g. at a DSP or SSP)
- Background in partner management, account management, or customer-facing roles
- Strong understanding of the programmatic ecosystem (SSPs, DSPs, publishers, auction mechanics)
- Familiarity with key performance metrics (CPM, CTR, CPI, ROAS, win rate, etc.)
- Ability to analyze large datasets and derive actionable insights
- Experience working with SQL, Excel, Claude / GPT for data analysis
- Comfortable working with working with large amounts of raw level data and campaign performance metrics
- Capable of working independently and collaboratively
- Strong work ethics with an innovative and problem-solving approach
- Exceptional attention to detail
What do we offer?
- Exceptional career growth and learning opportunity
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- Direct, day-to-day work experience with the management
- A fun, driven, and multinational team located across Germany, India, Argentina, Israel, Ukraine, Turkey, the UK and more countries.
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
Remote India
Hello👋I am Ashish, Product Operations Lead at Kayzen, and I am now looking for a Product Analyst to join our team 🙌
But wait, you have not heard of Kayzen before?😃
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options.
Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The team
The Product Analytics team sits at the intersection of data, product, business and engineering. We are a highly motivated group aligned in our quest to disrupt the multi-billion dollar ad-tech industry. You will collaborate with a carefully selected, diverse, and globally distributed team spanning customer success, engineering, data science, design, product and more.
Why This Role
As our Product Analyst, you will own the analytical layer that keeps our product honest and fast. You will pair deep product intuition with strong SQL skills and AI-accelerated workflows to diagnose issues, surface insights, and move faster than a traditional analyst role. This is not just about building dashboards — you will shape how we understand our product, automate recurring investigation work with LLM tools, and directly influence product and engineering decisions with data. If you love going deep on complex systems, debugging hard problems, and turning ambiguous data into clear action, this is your seat.
What You'll Do
Data Analysis & Insights
- Apply a broad range of analytical techniques to derive actionable insights from rich product and event data
- Work closely with the product team as a data-driven advisor and partner on strategic decisions and roadmap prioritisation
- Conduct deep-dive analyses on product performance, user behaviour, and funnel metrics to identify improvement opportunities
- Translate complex data findings into clear, concise narratives for technical and non-technical stakeholders
Product Support & Debugging
- Serve as the go-to person to analyse, debug, and resolve product issues in collaboration with engineering, Product and Business
- Go deep into complex customer-facing issues, identify root causes in data, and drive resolution with product and engineering teams
- Become a product and domain expert in RTB (Real-Time Bidding) and the broader programmatic advertising ecosystem
Automation & AI-Powered Workflows
- Leverage LLMs (GPT/Claude and similar tools) to automate recurring analyses, anomaly triage, data briefs, and BI request resolution — this is a mandatory part of how we work
- Build and maintain tools, scripts, and automated pipelines that reduce manual investigation effort and speed up response times
- Manage and resolve Business Intelligence requests; develop reusable tools to automate high-frequency reporting needs
- Contribute to internal dashboards and analytical tooling that accelerate decision-making across teams
Cross-Functional Collaboration
- Partner with engineering, data, customer success, and product teams on data-related initiatives and ad-hoc investigations
- Provide ideas and quantified feedback for product and process improvement
- Champion data quality, accuracy, and a culture of evidence-based decision-making across the organisation
Requirements
- 2+ years of AdTech industry experience in a data, analytics, or product analyst role
- Excellent SQL skills: comfortable writing complex queries including joins, CTEs, window functions, and aggregations against large datasets
- Hands-on experience with BI and data exploration tools (e.g. Redash, Looker, Metabase, or similar)
- Active user of AI tools (GPT, Claude, or similar) for analytical automation, data summarisation, and workflow acceleration.
- Strong analytical and troubleshooting skills with a structured, hypothesis-driven approach to problem-solving
- High attention to detail and commitment to data accuracy and quality of output
- Ability to work collaboratively in a cross-functional, globally distributed team environment
- Self-starter mindset with goal-driven focus and resilience in a high-pressure, deadline-driven environment
- Passion for building great products and creating excellent experiences for customers
Nice to Have
- Python / pandas for ad-hoc analyses and light automation — not required, but a strong differentiator
- Familiarity with mobile attribution and measurement (AppsFlyer, Adjust, Singular)
- Familiarity with HTML/Rich media creatives
What do we offer?
- Exceptional career growth and learning opportunity
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- Direct, day-to-day work experience with the management
- A fun, driven, and multinational team located across Germany, India, Argentina, Ukraine, Turkey, the UK and soon more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
Remote EMEA, LATAM
________________________
Hello, I am Tomás, Global Supply and Partnerships Lead at Kayzen, and I am looking for a Partnership Manager (AdTech) to strengthen our Supply Partnerships team. In this role, you will directly manage supply partners, drive performance improvements across key accounts, and ensure the highest quality of inventory on our platform.
This is a hands-on, high-impact role at the intersection of partner management, data analysis, and technical troubleshooting.
But wait, you have not heard of Kayzen before?😃
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through our self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The Team
The Supply Team lies at the intersection of demand and supply within Kayzen, that is we are responsible for the accessibility, efficiency, quality and development of ad inventory our customers access through the Kayzen DSP. Leveraging years of expertise in mobile programmatic supply, we ensure Kayzen’s customers gain access to the right inventory for their campaigns. Additionally, the Supply Team works closely with most of the teams at Kayzen, such as the Product Team in identifying new relevant signals available on bid requests, or the Marketing Team, in generating supply insights for thought leadership content.
Responsibilities
Partner Management
- Own and manage relationships with key Ad Exchanges and publishers
- Run regular check-ins and Quarterly Business Reviews (QBRs) with key partners
- Monitor partner performance and identify and execute growth opportunities
- Evaluate technical integrations and drive improvements where needed
- Track and resolve media cost discrepancies and other troubleshooting in collaboration with internal teams
Internal Supply Liaison
- Act as the bridge between Supply and commercial teams
- Support a customer- and revenue-centric supply strategy
- Monitor supply performance across top 5–10 strategic accounts
- Translate customer account-level insights into actionables for exchanges.
- Identify and unlock performance opportunities across supply partners
Troubleshooting & Inventory Quality Management
- Partner closely with the Product Support team to resolve supply-related issues
- Investigate and troubleshoot campaign delivery and performance challenges
- Analyze inventory data (e.g. bid requests, loss notifications) to foster data-driven decisions
- Identify quality issues and optimization opportunities within the supply chain
Requirements
- 2+ years of experience in programmatic advertising, preferably managing supply (e.g. at a DSP or SSP)
- Background in partner management, account management, or customer-facing roles
- Strong understanding of the programmatic ecosystem (SSPs, DSPs, publishers, auction mechanics)
- Familiarity with key performance metrics (CPM, CTR, CPI, ROAS, win rate, etc.)
- Ability to analyze large datasets and derive actionable insights
- Experience working with SQL, Excel, Claude / GPT for data analysis
- Comfortable working with working with large amounts of raw level data and campaign performance metrics
- Capable of working independently and collaboratively
- Strong work ethics with an innovative and problem-solving approach
- Exceptional attention to detail
What do we offer?
- Exceptional career growth and learning opportunity
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- Direct, day-to-day work experience with the management
- A fun, driven, and multinational team located across Germany, India, Argentina, Israel, Ukraine, Turkey, the UK and more countries.
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
Performance Campaign Analyst (m/f/d)
Berlin, Bangalore, Remote
________________________
Hello👋I am Willian, Trading and Analytics Lead at Kayzen, and I am now looking for a Performance Campaign Analyst to join our team 🙌
About Kayzen
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through our self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 300B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The Team
The Trading team is responsible for creating growth through the management and optimization of mobile performance advertising campaigns for clients utilizing the managed service offering. The goal of the team is to deliver on the client's objectives through established or new trading best practices and communicate account status regularly and effectively with their CSM counterparts.
Why this role
This is a hands-on trading role where you'll manage mobile programmatic campaigns across verticals like gaming, fintech, and betting, optimizing toward CPA/ROAS targets while learning to scale efficiently. You'll work closely with senior traders and cross-functional partners, gaining exposure to advanced analytics, LLM-powered workflows, and trading strategies that go well beyond what most desks offer at this level. If you're analytical, curious about automation, and want to accelerate your programmatic career, this is the role for you.
What you’ll do
Trading excellence
- Manage day-to-day campaign optimization across a set of advertisers; monitor and hit KPI targets (CPA, ROAS, retention) with guidance from senior traders.
- Execute supply-side and audience optimization tactics including publisher management, bid adjustments, and dayparting across ad formats (banner, video, native, CTV).
- Run A/B tests on bids, budgets, creatives, and geos as part of broader testing roadmaps; document results and contribute learnings to the Trading Playbook.
- Monitor pacing and budget allocation daily, flagging risks and under-delivery proactively.
- Build a working understanding of mobile attribution (postback flows, attribution windows, MMP integrations) and how attribution models affect how we measure and optimize campaign performance.
Analytics & automation
- Use SQL to pull and analyze campaign data from internal databases; build comfort with joins, CTEs, and window functions over time.
- Learn to leverage LLMs (GPT/Claude) for recurring analyses, data briefs, and performance diagnostics, this is a core part of how our team works.
- Support the creation and maintenance of dashboards and reporting tools used by the trading team.
- Develop your analytical instincts: learn to ask the right questions, understand what's driving performance, and use available tools (SQL, AI, BI tools) to find answers.
Cross-functional impact
- Work with CSMs to understand client goals and communicate campaign status clearly.
- Support QBR preparation and client-facing deliverables alongside senior traders.
- Collaborate with Product Support to troubleshoot delivery issues and with Supply on inventory quality questions.
Since I am based in Argentina and other key product and customer success team members are located mostly across EMEA and India, we are open to a remote setup of this position. For optimal overlap with customers’ time zones and internal teams your main working location should preferably be close to the CET time zone.
Requirements
- 1–3 years of programmatic ad buying, ad operations, or adjacent adtech experience.
- Familiarity with MMPs (AppsFlyer, Adjust, Singular) and attribution concepts; hands-on experience preferred.
- Analytical mindset; basic SQL ability or a demonstrated willingness to learn quickly.
- Curiosity about AI and automation — you don't need to be an expert, but you should be excited to use LLMs as part of your daily workflow.
- Nice-to-have: Any exposure to Python, CTV/OTT, or mobile in-app DSP platforms.
- Solution-oriented with a bias toward action.
- Clear communicator who's comfortable asking questions and collaborating across teams.
What do we offer?
- Competitive compensation with a performance-based component
- Exceptional career growth and learning possibilities — you'll be mentored by experienced traders and exposed to advanced workflows (LLMs, ClickHouse, audience strategy) earlier than at most organizations
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- A high degree of responsibility and independence
- Direct, day-to-day work with the management
- A fun, driven, and multinational team located across Germany, India, Argentina, Ukraine, Spain, the UK and many more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
Growth Analyst (m/f/d)
Berlin, Bangalore, Remote
________________________
Hello👋I am Willian, Trading and Analytics Lead at Kayzen, and I am now looking for a Growth Analyst to join our team 🙌
About Kayzen
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through our self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 300B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The Team
The Trading team is responsible for creating growth through the management and optimization of mobile performance advertising campaigns for clients utilizing the managed service offering. The goal of the team is to deliver on the client's objectives through established or new trading best practices and communicate account status regularly and effectively with their CSM counterparts.
Why this role
This is a hands-on trading role where you'll manage mobile programmatic campaigns across verticals like gaming, fintech, and betting, optimizing toward CPA/ROAS targets while learning to scale efficiently. You'll work closely with senior growth analysts and cross-functional partners, gaining exposure to advanced analytics, LLM-powered workflows, and trading strategies that go well beyond what most desks offer at this level. If you're analytical, curious about automation, and want to accelerate your programmatic career, this is the role for you.
What you’ll do
Trading excellence
- Manage day-to-day campaign optimization across a set of advertisers; monitor and hit KPI targets (CPA, ROAS, retention) with guidance from senior growth analysts.
- Execute supply-side and audience optimization tactics including publisher management, bid adjustments, and dayparting across ad formats (banner, video, native, CTV).
- Run A/B tests on bids, budgets, creatives, and geos as part of broader testing roadmaps; document results and contribute learnings to the Trading Playbook.
- Monitor pacing and budget allocation daily, flagging risks and under-delivery proactively.
- Build a working understanding of mobile attribution (postback flows, attribution windows, MMP integrations) and how attribution models affect how we measure and optimize campaign performance.
Analytics & automation
- Use SQL to pull and analyze campaign data from internal databases; build comfort with joins, CTEs, and window functions over time.
- Learn to leverage LLMs (GPT/Claude) for recurring analyses, data briefs, and performance diagnostics, this is a core part of how our team works.
- Support the creation and maintenance of dashboards and reporting tools used by the trading team.
- Develop your analytical instincts: learn to ask the right questions, understand what's driving performance, and use available tools (SQL, AI, BI tools) to find answers.
Cross-functional impact
- Work with CSMs to understand client goals and communicate campaign status clearly.
- Support QBR preparation and client-facing deliverables alongside senior growth analysts.
- Collaborate with Product Support to troubleshoot delivery issues and with Supply on inventory quality questions.
Since I am based in Argentina and other key product and customer success team members are located mostly across EMEA and India, we are open to a remote setup of this position. For optimal overlap with customers’ time zones and internal teams your main working location should preferably be close to the CET time zone.
Requirements
- 1–3 years of programmatic ad buying, ad operations, or adjacent adtech experience.
- Familiarity with MMPs (AppsFlyer, Adjust, Singular) and attribution concepts; hands-on experience preferred.
- Analytical mindset; basic SQL ability or a demonstrated willingness to learn quickly.
- Curiosity about AI and automation — you don't need to be an expert, but you should be excited to use LLMs as part of your daily workflow.
- Nice-to-have: Any exposure to Python, CTV/OTT, or mobile in-app DSP platforms.
- Solution-oriented with a bias toward action.
- Clear communicator who's comfortable asking questions and collaborating across teams.
What do we offer?
- Competitive compensation with a performance-based component
- Exceptional career growth and learning possibilities — you'll be mentored by experienced growth analysts and exposed to advanced workflows (LLMs, ClickHouse, audience strategy) earlier than at most organizations
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- A high degree of responsibility and independence
- Direct, day-to-day work with the management
- A fun, driven, and multinational team located across Germany, India, Argentina, Ukraine, Spain, the UK and many more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
Programmatic Trader (m/f/d)
Berlin, Bangalore, Remote
________________________
Hello👋I am Willian, Trading and Analytics Lead at Kayzen, and I am now looking for a Programmatic Trader to join our team 🙌
About Kayzen
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through our self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 300B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The Team
The Trading team is responsible for creating growth through the management and optimization of mobile performance advertising campaigns for clients utilizing the managed service offering. The goal of the team is to deliver on the client's objectives through established or new trading best practices and communicate account status regularly and effectively with their CSM counterparts.
Why this role
This is a hands-on trading role where you'll manage mobile programmatic campaigns across verticals like gaming, fintech, and betting, optimizing toward CPA/ROAS targets while learning to scale efficiently. You'll work closely with senior traders and cross-functional partners, gaining exposure to advanced analytics, LLM-powered workflows, and trading strategies that go well beyond what most desks offer at this level. If you're analytical, curious about automation, and want to accelerate your programmatic career, this is the role for you.
What you’ll do
Trading excellence
- Manage day-to-day campaign optimization across a set of advertisers; monitor and hit KPI targets (CPA, ROAS, retention) with guidance from senior traders.
- Execute supply-side and audience optimization tactics including publisher management, bid adjustments, and dayparting across ad formats (banner, video, native, CTV).
- Run A/B tests on bids, budgets, creatives, and geos as part of broader testing roadmaps; document results and contribute learnings to the Trading Playbook.
- Monitor pacing and budget allocation daily, flagging risks and under-delivery proactively.
- Build a working understanding of mobile attribution (postback flows, attribution windows, MMP integrations) and how attribution models affect how we measure and optimize campaign performance.
Analytics & automation
- Use SQL to pull and analyze campaign data from internal databases; build comfort with joins, CTEs, and window functions over time.
- Learn to leverage LLMs (GPT/Claude) for recurring analyses, data briefs, and performance diagnostics, this is a core part of how our team works.
- Support the creation and maintenance of dashboards and reporting tools used by the trading team.
- Develop your analytical instincts: learn to ask the right questions, understand what's driving performance, and use available tools (SQL, AI, BI tools) to find answers.
Cross-functional impact
- Work with CSMs to understand client goals and communicate campaign status clearly.
- Support QBR preparation and client-facing deliverables alongside senior traders.
- Collaborate with Product Support to troubleshoot delivery issues and with Supply on inventory quality questions.
Since I am based in Argentina and other key product and customer success team members are located mostly across EMEA and India, we are open to a remote setup of this position. For optimal overlap with customers’ time zones and internal teams your main working location should preferably be close to the CET time zone.
Requirements
- 1–3 years of programmatic ad buying, ad operations, or adjacent adtech experience.
- Familiarity with MMPs (AppsFlyer, Adjust, Singular) and attribution concepts; hands-on experience preferred.
- Analytical mindset; basic SQL ability or a demonstrated willingness to learn quickly.
- Curiosity about AI and automation — you don't need to be an expert, but you should be excited to use LLMs as part of your daily workflow.
- Nice-to-have: Any exposure to Python, CTV/OTT, or mobile in-app DSP platforms.
- Solution-oriented with a bias toward action.
- Clear communicator who's comfortable asking questions and collaborating across teams.
What do we offer?
- Competitive compensation with a performance-based component
- Exceptional career growth and learning possibilities — you'll be mentored by experienced traders and exposed to advanced workflows (LLMs, ClickHouse, audience strategy) earlier than at most organizations
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- A high degree of responsibility and independence
- Direct, day-to-day work with the management
- A fun, driven, and multinational team located across Germany, India, Argentina, Ukraine, Spain, the UK and many more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
DevOps Engineer (m/f/d)
Bangalore, Remote India
Hello 👋 I am Servesh, Co- founder and CTO at Kayzen, and I am now looking for a DevOps Engineer who will be part of our Engineering team. 🙌 But wait, you have not heard of Kayzen before? 😃
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The Team
The Platform Engineering team owns Real-time bidding (RTB) platform, a Real-time budget system, Real-time event processing, Stream data processing engine and multiple other complex large-scale distributed components and data pipelines. We work closely with data scientists, data analysts, product and business teams. We are responsible for some of the most technically challenging work, for example:
- Handling ~2 Million Req/sec in sub-millisecond latency
- Handing & managing ~Petabytes of data
- Managing distributed systems deployed across multiple data centers
- Optimizing JVM and Linux kernel for optimal performance
- Managing our own data center spread across the globe consisting of thousand of powerful servers
- Working on some of the most challenging problems of Ad-Tech
Sounds interesting. Isn't it?
About the Role
We are looking for a DevOps Engineer to build and scale the backbone of our global RTB platform. You will move beyond manual server management to engineer automated, self-healing infrastructure that handles petabytes of data with sub-millisecond latency. This role is about treating our private data centers like a programmable cloud.
Responsibilities
- Engineering and Provisioning -
- Develop and maintain automated provisioning pipelines (PXE, ZTP) to deploy bare-metal servers ( configure hardware, peripherals, services, settings, directories, storage, etc. in accordance with standards and project/operational requirements) at scale across global data centers.
- You research and recommend innovative and automated approaches for system administration tasks.
- Operations and Support -
- You perform regular security monitoring to identify any possible intrusions.
- You repair and recover from hardware or software failures, coordinating with impacted teams.
- Maintenance -
- You apply OS patches and upgrades on a regular basis, and upgrade administrative tools and utilities.
- You maintain data center environmental and monitoring equipment.
- You perform ongoing performance tuning, hardware upgrades, and resource optimization as required.
Requirements
- You are flexible to work in rotational shifts as part of the incidence response team.
- You have a Bachelor degree, with a technical major, such as engineering or computer science.
- You have good knowledge of coding with Shell and Python/Java and SQL commands.
- Hands-on experience with Terraform or Ansible or Puppet/Chef for managing bare-metal configurations and automations.
- Strong understanding of L4/L7 load balancing (HAProxy/Nginx) and network performance tuning (TCP/IP stack optimization).
- You have 8+ years of system administration/debugging experience, scripting and related tools.
- You have good knowledge on pipeline/orchestration tools like Jenkins/Ariflow and similar platforms as mandatory.
- You have good knowledge on Observability platform experience (Prometheus, Grafana, InfluxDB) as mandatory
- You have good knowledge of Kubernetes will be an added advantage.
- You have systems Administration/System Engineer certification in Unix will be an added advantage.
What do we offer?
- Reporting directly to Co-founder & CTO
- Direct access to top management and an extremely “visible” role
- Exceptional career growth and learning opportunity
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- A fun, driven, and multinational team located across Germany, India, UK, Argentina, Ukraine, Turkey, Spain and many more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
Sales Director - Agencies & Brands (m/f/d)
London
________________________
Hello👋I am Andrew, General Manager Revenue at Kayzen, and I am now looking for a Sales Director - Agencies & Brands to join our global team 🙌
In this role, you will play a vital role in driving customer satisfaction, fostering long- term relationships and contributing to the overall growth and success of the company. But wait, you have not heard of Kayzen before?😃
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options. Built on the core pillars of performance, transparency, control, and empowerment, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The Team
You will work with a carefully selected, diverse and globally distributed team from customer success, engineering, data science, design, marketing, product and more. We are highly motivated and aligned in our quest to disrupt the multi-billion dollar mobile ad-tech industry. Sounds interesting?
The Role
As our Sales Director - Agencies & Brands, your primary focus is on opening new opportunities with Agencies and Brands customers that align to Kayzen’s strategy. Your previous experience as a senior business leader in the adtech or digital marketing industry with a strong network with Agency executives will be a great starting point to create an immediate impact from Day 1. We are seeing strong traction across performance and branding budgets. Solid experience at generating new business from a range of agencies (independent and hold cos) is therefore essential. The leaders in Kayzen’s team who you will closely interact with are our customer success lead (growing key customers), GM Revenue (support and help to win customers) and the wider GTM team who are all aligned in making Kayzen a continued success. Apart from your primary tasks, you are welcome to contribute to multiple areas in the organization such as product, data analytics and partnerships. Given the need to meet customers in person, the candidate needs to be able to travel into London at least twice a week.
Responsibilities
- Acquire new customers through your existing network and new outreach ensuring that ambitious sales targets are met
- Work closely with the GM Revenue and develop and execute GTM strategies for growing our business with agencies and brands
- Build and maintain strong relationships with leaders within the agency, programmatic and mobile advertising market
- Actively engage with customers, partners and other market participants to identify and propose new opportunities for revenue growth
- Understand customer needs and bring in new ideas on how we can expand our product to add value for customers
- Continuously identify potential sales and marketing bottlenecks and implement relevant improvements
- Collaborate with the existing team and operate in a positive manner
Requirements
- Proven track record of winning new customers from the agency sector
- A strategic approach to revenue growth with the ability to create a successful GTM
- Detail-oriented and process driven with a structured problem-solving attitude and a KPI driven approach.
- Good understanding of programmatic advertising and digital marketing
- Strong communication skills and people orientation - both internally and externally
- Strong work ethics, results orientation, persuasiveness and high level of initiative and assertiveness
- Good business acumen with an ability to identify and execute on growth opportunities
- Enjoys working in a start-up environment with the flexibility to adapt to changing needs
What do we offer?
- Exceptional career growth and learning opportunity
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the mobile ads market
- Direct, day-to-day work experience with the management
- A fun, driven, and multinational team located across Germany, India, Argentina, Ukraine, Spain, Israel the UK and more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
Sales Director - iGaming (m/f/d)
Remote Europe
________________________
Hello👋I am Andrew, General Manager Revenue at Kayzen. I am now looking for a Sales Director, - iGaming to join our global team and play a pivotal role in scaling our reach to top app iGaming companies worldwide 🙌
In this role, you will play a vital role in driving customer satisfaction, fostering long- term relationships and contributing to the overall growth and success of the company. As a growing company and team there is a lot of opportunity for the right candidate to grow and develop with the company.
But wait, you have not heard of Kayzen before?😃
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options. Built on the core pillars of performance, transparency, control, and empowerment, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The Team
You will work with a carefully selected, diverse and globally distributed team from customer success, engineering, data science, design, marketing, product and more. We are highly motivated and aligned in our quest to disrupt the multi-billion dollar mobile ad-tech industry. Sounds interesting?
The Role
As our Sales Director, - iGaming, your primary focus will be to drive new businesses from leading iGaming companies globally. The leaders in Kayzen’s team who you will closely interact with are our marketing lead, SDR resources and our customer success lead (onboarding and growing customers you sign and bring on board). Apart from your primary tasks, you are welcome to contribute to multiple areas in the organization such as product, marketing and partnerships. Since our key product and customer success team members are located globally, we are open to a remote setup for this position. For optimal overlap with customers’ time zones and internal teams your main working location should be anywhere between CET and US East time zone.
Responsibilities
- Excel at acquiring new app customers (focus: outbound) who generate sticky, sustainable revenue growth from the top iGaming customers globally
- Actively engage with customers, partners and other market participants to identify and propose new opportunities for revenue growth
- Cooperate with our marketing team to help build our narrative and communication for the target customer profile of App Developers
- Understand customer needs and bring in new ideas on how we can expand our product to add value for customers
- Continuously identify potential sales and marketing bottlenecks and implement relevant improvements
- Build strong relationships with leaders within the ad-tech industry and key customers and partners. Represent Kayzen at industry events and be a source of knowledge to customers as well as a customer advocate internally
- Working closely with the SDR team to build pipeline and create opportunities
- Keep Hubspot up to date and ensure accurate record keeping
- This is an individual contributor role and the key success metric is new, signed iGaming customers for Kayzen
Requirements
- At least 5 years of business development / sales experience in ad-tech or mobile app-development industry
- Previous experience in managing B2B sales or partnerships holistically with complex products or services
- Existing network in the iGaming industry and knowledge of the sector and client needs.
- Knowledge of the programmatic landscape and understanding of the performance media sector are essential.
- Detail-oriented and process driven with a structured problem-solving attitude and a KPI driven approach.
- Great work ethics, results orientation, persuasiveness and high level of initiative and assertiveness
- Good business acumen with an ability to identify and execute on growth opportunities
- Enjoying working in a fast paced and dynamic start-up environment
What do we offer?
- Exceptional career growth and learning opportunity
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- Direct, day-to-day work experience with the management
- A fun, driven, and multinational team located across Germany, India, Argentina, Israel, Ukraine, Turkey, the UK and more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
Senior Data Engineer/Data Ops (m/f/d)
Remote EMEA/ Remote India
________________________
Hello 👋 I am Adriano, Machine Learning Lead at Kayzen, and I am now looking for a Senior Data Engineer who will be a part of the machine learning engineering team bridging the gap between data science and ad systems engineering team 🙌
But wait, you have not heard of Kayzen before? 😃
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through our self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 300B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The role
Are you excited about data? Will you take on the challenge to help us make Kayzen a ML first organization leading the AdTech space? Do you want to change the way we as an organization manage our data and do business? Are you interested in how billions of data points flow through various systems & data pipelines and how it is governed to generate knowledge and value? If your answer is “yes” to all these questions, if you are a problem solver and a team player, we would love to meet you!
Day to day
As a Data Engineer/Data Ops, you will work to create innovative solutions for handling peta-bytes of data with billions of rows & joins. Your work can vary from creating real time and offline features generation pipelines to managing our data infrastructure to be reliable and fast!
You’ll be responsible for:
- Program and maintain our data pipelines that fuels our on-premise/cloud data warehouse used to generate and serve our models
- Maintain and improve our fleet of data servers (the software), making sure they are reliable and able to process our billions of logs and data points
- Develop and productionize data pipelines for our ML models in both bare-metal and the cloud environment.
- Make suggestions and lead projects to improve our data processing capabilities
- Contribute to the team enabling us to be always better
Sounds like you? 😉
We are looking for a candidate with a minimum 5+ yrs of professional experience in creating and maintaining big data pipelines, identifying data related process improvements, maintaining Kubernetes, Hadoop and Spark infrastructure.
- Bachelor's/Master’s degree in a quantitative field of Mathematics, Physics, Computer Science, Machine learning Engineering, Business Analytics, Information Management or related field.
- You know relevant programming languages (Python, Java, etc)
- Expert in SQL & NoSQL and big data processing pipelines (we use Python, Spark, Airflow)
- Have proven experience managing data infrastructure that can store and process Petabytes of data (we use Hadoop, Spark)
- Kubernetes wizard. LLM symbiotic.
- You have proven affinity with data
- You have strong analytical and problem-solving skills
- You can translate business requirements into data solutions
- You have excellent stakeholder management skills.
- Previous experience with Clickhouse is a plus
- Previous experience with ad-tech is a plus
- Experience with Real time big data processing is a plus
- General understanding of Machine Learning techniques (Neural Networks, Random Forest, etc.) and ML frameworks (Mlflow, PyTorch, Tensorflow, etc.) is a plus
What do we offer?
- Exceptional career growth and learning opportunity
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- Direct, day-to-day work experience with the management
- A fun, driven, and multinational team located across Germany, India, Argentina, Ukraine, Turkey, the UK and soon more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
LLM Platform Engineer/Lead (m/f/d)
Berlin, Bangalore, Remote
Hello 👋 I am Servesh, Co- founder and CTO at Kayzen, and I am now looking for a LLM Platform Engineer/Lead who will be part of our Engineering team. 🙌 But wait, you have not heard of Kayzen before? 😃
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The Team
The Platform Engineering team owns Real-time bidding (RTB) platform, a Real-time budget system, Real-time event processing, Stream data processing engine and multiple other complex large-scale distributed components and data pipelines. We work closely with data scientists, data analysts, product and business teams. We are responsible for some of the most technically challenging work, for example:
- Handling ~2 Million Req/sec in sub-millisecond latency
- Handing & managing ~Petabytes of data
- Managing distributed systems deployed across multiple data centers
- Optimizing JVM and Linux kernel for optimal performance
- Managing our own data center spread across the globe consisting of thousand of powerful servers
- Working on some of the most challenging problems of Ad-Tech
Sounds interesting. Isn't it?
About the Role
We are looking for an LLM Platform Engineer /Lead who can evangelise AI across the company and build the foundational tooling, frameworks, and workflows that allow teams to ship AI-powered features quickly and safely. This role is ideal for an engineer who understands modern AI capabilities and focuses on developer velocity, reuse, and production readiness rather than training complex models from scratch.
Responsibilities
- Design and build internal AI frameworks, SDKs, and shared libraries
- Enable teams to integrate AI features with minimal friction
- Set up standardized patterns for using LLMs, embeddings, agents, and workflows
- Build reusable components for prompt management, evaluation, observability, and safety
- Define best practices for AI usage, cost control, and reliability
- Evangelise AI internally through documentation, examples, and hands-on guidance
- Rapidly prototype AI-powered features and turn them into reusable building blocks
- Own AI tooling from experimentation to production
Requirements
AI Tooling & Framework Experience (Core Focus)
- Hands-on experience with LLM APIs (OpenAI, Anthropic, etc.)
- Experience with RAG pipelines, embeddings, vector databases
- Familiarity with prompt engineering, prompt versioning, and evaluation
- Experience with AI orchestration frameworks
- Understanding of AI observability, cost monitoring, and failure modes
- You’ve shipped at least one LLM-powered feature to production and iterated based on telemetry or user feedback.
- Comfortable with embeddings, fine-tuning, vector search, tokenization, and evaluation methodologies.
- Familiar with data lakes/warehouses, feature stores, and streaming/batch ETL; cloud (AWS/GCP/Azure).
Strong Engineering & Platform Skills
- Excellent Python skills (required)
- Experience building frameworks, platforms, or developer tooling
- Strong understanding of APIs, services, and system design
- Writes clean, maintainable, production-grade code
Startup Mindset
- Bias for shipping and iteration
- Can translate AI complexity into simple abstractions
- Comfortable with ambiguity and rapid change
- Thinks in terms of leverage and reuse , not one-off solutions
Less About
- Heavy model training or research
- Designing custom ML algorithms
- Academic optimization work.
Nice to have
- Experience with agent-based systems and tool calling
- Experience setting up guardrails, moderation, and safety checks
- Familiarity with Docker, cloud infra, and CI/CD
- Prior work in platform teams or enablement roles
What do we offer?
- Reporting directly to Co-founder & CTO
- Direct access to top management and an extremely “visible” role
- Exceptional career growth and learning opportunity
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- A fun, driven, and multinational team located across Germany, India, UK, Argentina, Ukraine, Turkey, Spain and many more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
Senior Data Scientist (m/f/d)
Europe, Remote
_______________________________________________
Hello👋I am Puneet, Co-founder and CPO at Kayzen, and I am now looking for a Senior Data Scientist to join our team 🙌
But wait, you have not heard of Kayzen before?😃
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The Team
You will work with a carefully selected, diverse and globally distributed Data Science team (like Heiko, Chen) on various machine-learning models that process terabytes of data, serving billions of ad requests and users around the globe in real-time. We are highly motivated and aligned in our quest to disrupt the multi-billion dollar ad-tech industry. We would like you to be part of our journey, as our Senior Data Scientist (m/f/d).
Responsibilities
Our day-to-day work in Data Science and Machine Learning encompasses a wide range of activities, including:
- Enhancing Models: Continuously improving existing models by incorporating new features, fine-tuning parameters, and utilizing additional data.
- Algorithm Development: Collaborating with our Machine Learning Engineering team to develop and deploy scalable supervised and unsupervised learning algorithms.
- Data Exploration: Identifying and exploring new data sources while researching innovative ways to leverage both new and existing data effectively.
- Solution Research: Investigating new Machine Learning solutions to optimize every step of our value chain.
- A/B Testing: Regularly conducting and evaluating A/B tests to drive insights and refine our strategies.
You’ll be a great fit if you resonate with the following principles of Data Science and Machine Learning:
- Simplicity First: We prioritize finding the best solutions to challenges rather than forcing problems to fit predetermined solutions.
- Impact-Driven: We leverage Machine Learning to enhance our product and drive performance for our clients, always focusing on tangible business outcomes.
- Collaborative Spirit: Our teams consist of analysts, engineers, and data scientists, making strong communication skills essential for success.
- Embrace Experimentation: We believe in the power of experimentation to innovate and refine our approach continually.
Requirements
- Extensive experience in developing data science products, from initial research through to production deployment.
- Strong coding skills with a focus on clean, reproducible, and well-tested code.
- Proficient in key tools and technologies including Python, Spark, Hadoop, Airflow, Docker, and SQL.
- Hands-on experience with algorithms for handling sparse and large datasets, including applications in prediction, clustering, and outlier detection.
- Experience in building neural network-based products for tasks such as classification, regression, and multi-task learning is highly valuable.
- Bonus skills: Knowledge of reinforcement learning and large-scale optimization problems is a significant asset.
- Good understanding of dashboards and SQL for developing and enhancing monitoring tools.
- Previous experience in Ad-Tech is a must.
What do we offer?
- Directly working with Founders and an opportunity to drive direct impact
- Exceptional career growth and learning opportunity
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- A fun, driven, and multinational team located across Germany, India, Argentina, Canada, Spain, the UK and many more countries.
- A flexible work-from-home arrangement
- Opportunity to relocate to our office in Berlin
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
Senior Programmatic Trader (m/f/d)
Berlin, Bangalore, Remote
________________________
Hello👋I am Willian, Trading and Analytics Lead at Kayzen, and I am now looking for a Senior Programmatic Trader to join our team 🙌
About Kayzen
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through our self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 300B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The Team
The Trading team is responsible for creating growth through the management and optimization of mobile performance advertising campaigns for clients utilizing the managed service offering. The goal of the team is to deliver on the client's objectives through established or new trading best practices and communicate account status regularly and effectively with their CSM counterparts.
Why this role
In this role, you will own and grow a portfolio of mobile programmatic campaigns (UA/RT) across verticals including gaming, fintech, betting, and CTV, delivering CPA/ROAS targets while scaling FCT and protecting contribution margin. You'll pair deep trading skills with analytics (SQL must have / Python desirable. What matters most: the analytical instinct to ask the right questions and the resourcefulness to find answers, whether through code or AI tools) and LLM-accelerated workflows to move faster than a traditional desk. You won't just optimize campaigns, you'll shape the tools, analytical frameworks, and trading playbooks the team uses to win.
What you’ll do
Trading excellence
- Own end-to-end campaign delivery across multiple advertisers; hit KPI targets (CPA, ROAS, retention) and scale when unit economics allow.
- Develop audience targeting strategies and supply-side optimization (audience, publisher selection, bid shading, dayparting) across ad formats (banner, video, native, CTV) to unlock incremental scale.
- Build and execute testing roadmaps (optimization models, bids, budgets, frequency, creatives, geos, etc.) to drive incremental lift.
- Manage pacing, budget allocation, and risk across an account book, proactively mitigating under-delivery.
- Understand mobile attribution dynamics (postback flows, attribution windows, deterministic vs probabilistic matching, iOS privacy frameworks) and how they shape bidding strategy, audience targeting, and performance interpretation across MMPs.
- Champion process improvements, author tools/queries, and mentor juniors to raise team throughput.
Analytics & automation
- Dive into log-level and aggregated data to diagnose performance; write production-grade SQL (joins, CTEs, window functions) and Python/pandas analyses (or sharp use of AI)
- Design and interpret tests, translating findings into the Trading Playbook.
- Leverage LLMs (GPT/Claude) to automate recurring analyses (bid curves, cohort reads, anomaly triage), create data briefs, and draft experiments.
- Contribute to internal dashboards and trading intelligence tools that accelerate decision-making across the team.
Cross-functional impact
- Partner with CSM/Sales on growth plans and QBRs; influence Product with crisp, quantified feedback; collaborate with Supply on inventory quality.
- Work with DS/DA on model inputs, new testing hypotheses or model improvements, and with Product Support to quickly unblock delivery.
Since I am based in Argentina and other key product and customer success team members are located mostly across EMEA and India, we are open to a remote setup of this position. For optimal overlap with customers’ time zones and internal teams your main working location should preferably be close to the CET time zone.
Requirements
- 3–5 years of programmatic ad buying experience; mobile in-app DSP experience preferred.
- Hands-on with MMPs (AppsFlyer, Adjust, Singular), postback flows, fraud detection, and reporting tools.
- Data-driven decision making; comfortable building and modifying SQL queries (joins, CTEs, window functions a plus). Familiarity with BI tools. Familiarity with AI is a must.
- Nice-to-have: Python/pandas for ad-hoc analyses and light automation; experience is a plus but not required.
- Nice-to-have: CTV/OTT programmatic buying experience.
- Solution orientation and drive to succeed.
- Communication: crisp written analysis and cross-team collaboration. Client-facing confidence preferred.
What do we offer?
- Competitive compensation with a performance-based component
- Exceptional career growth. Shape trading playbooks, product, mentor junior traders, and influence the tools and analytical frameworks the team builds around you.
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- A high degree of responsibility and independence
- Direct, day-to-day work with the management
- A fun, driven, and multinational team located across Germany, India, Argentina, Ukraine, Spain, the UK and many more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen
Senior Sales Director - Apps (m/f/d)
London, EU Remote
________________________
Hello👋I am Andrew, General Manager Revenue at Kayzen. I am now looking for a Senior Sales Director, - Apps to join our global team and play a pivotal role in scaling our reach to top app developers worldwide 🙌
In this role, you will play a vital role in driving customer satisfaction, fostering long- term relationships and contributing to the overall growth and success of the company. As a growing company and team there is a lot of opportunity for the right candidate to grow and develop with the company.
But wait, you have not heard of Kayzen before?😃
Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options. Built on the core pillars of performance, transparency, control, and empowerment, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.
The Team
You will work with a carefully selected, diverse and globally distributed team from customer success, engineering, data science, design, marketing, product and more. We are highly motivated and aligned in our quest to disrupt the multi-billion dollar mobile ad-tech industry. Sounds interesting?
The Role
As our Senior Sales Director, - Apps, your primary focus will be to drive new businesses from the leading Global App Developers. The leaders in Kayzen’s team who you will closely interact with are our marketing lead, SDR resources and our customer success lead (onboarding and growing customers you sign and bring on board). Apart from your primary tasks, you are welcome to contribute to multiple areas in the organization such as product, marketing and partnerships. Since our key product and customer success team members are located globally, we are open to a remote setup for this position. For optimal overlap with customers’ time zones and internal teams your main working location should be anywhere between CET and US East time zone.
Responsibilities
- Excel at acquiring new app customers (focus: outbound) who generate sticky, sustainable revenue growth from the top 150 global apps
- Actively engage with customers, partners and other market participants to identify and propose new opportunities for revenue growth
- Cooperate with our marketing team to help build our narrative and communication for the target customer profile of App Developers
- Understand customer needs and bring in new ideas on how we can expand our product to add value for customers
- Continuously identify potential sales and marketing bottlenecks and implement relevant improvements
- Build strong relationships with leaders within the ad-tech industry and key customers and partners. Represent Kayzen at industry events.
- Working closely with the SDR team to build pipeline and create opportunities
- Keep Hubspot up to date and ensure accurate record keeping
- This is an individual contributor role and the key success metric is new, signed app developer customers for Kayzen
Requirements
- At least 6 years of business development / sales experience in ad-tech or mobile app-development industry
- Previous experience in managing B2B sales or partnerships holistically with complex products or services
- Knowledge of the programmatic landscape and understanding of the performance media sector are essential.
- Detail-oriented and process driven with a structured problem-solving attitude and a KPI driven approach.
- Great work ethics, results orientation, persuasiveness and high level of initiative and assertiveness
- Good business acumen with an ability to identify and execute on growth opportunities
- Enjoying working in a fast paced and dynamic start-up environment
What do we offer?
- Exceptional career growth and learning opportunity
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- Direct, day-to-day work experience with the management
- A fun, driven, and multinational team located across Germany, India, Argentina, Israel, Ukraine, Turkey, the UK and more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
Ready to apply?
Apply to Kayzen