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Senior Software Engineer, Python (Tools Development)
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Teamwork makes the stream work.
Roku is changing how the world watches TV
Roku is the #1 TV streaming platform in the U.S., Canada, and Mexico, and we've set our sights on powering every television in the world. Roku pioneered streaming to the TV. Our mission is to be the TV streaming platform that connects the entire TV ecosystem. We connect consumers to the content they love, enable content publishers to build and monetize large audiences, and provide advertisers unique capabilities to engage consumers.
From your first day at Roku, you'll make a valuable - and valued - contribution. We're a fast-growing public company where no one is a bystander. We offer you the opportunity to delight millions of TV streamers around the world while gaining meaningful experience across a variety of disciplines.
About the team
With so many people using Roku’s products globally, we’ve become well-known for products that “just work” right out of the box and integrate almost by magic. That doesn’t happen by accident, which is why we are committed to making sure our products aren’t just intuitive, they’re obvious. To support that commitment, the Roku’s Automation support and Tools team focuses on providing innovative and impactful tools that improve efficiency, enhance productivity of all engineering to test Roku products, from industry’s most reliable streaming media platform to smart home products that seamlessly integrate with Roku entertainment OS for a great connected home user experience. We accomplish this using state of the art technology and engineering to make it happen, with consideration for the customer as the centre of all that we do.
About the role
The Roku’s software automation and tools team has an excellent opportunity for a Senior Software Engineer with strong experience in building automation framework and tools for SW embedded devices. The role involves developing and maintaining software and tools that help various internal teams to test and manage Roku’s products. Working closely with internal stakeholders to enhance existing automation toolset with new capabilities and advanced features that empower all engineering and accelerate validation efforts for SW releases.
You will work cross-functionally with various engineering teams, using your finest automation expertise to help both FW developers and QA to create and deliver highest quality product that help in provide valuable end-user feedback to improve customer’s experience. This position requires python expertise with strong experience of using web frameworks, excellent debugging, written and organizational skills. You will be joining a talented, high-performance team of developers with a history of delivery. We are looking for someone who can help us keep up this pace and continue delivering high quality as we grow.
We are looking for a keen problem solver and a self-motivated individual with excellent communication and collaborative skills who is eager to learn and grow in consumer electronics space. As an engineer on the team you will require skills and confidence to undertake the challenges of working in a fast-paced environment, frequently be taken out of your comfort zone and relish getting your hands dirty working with user facing products
What you'll be doing
- Support and maintain existing automation tools and technology
- Develop and release new E2E automation support and tools
- Debug issues to improve the quality of automated test tools and frameworks
- Conduct code reviews to improve code quality and optimization
- Promote coding conventions and standards for code re-usability and cleanliness
- Document Feature guides, identify and formulate user requirements, product behavior
- Mentor less experienced engineers and driving automation development
- Assist in monitoring and maintenance of critical systems
We're excited if you have
- 5+ years of hands-on experience with automation systems
- 5+ years of programming experience, preferably with Python
- Bachelor’s degree in Computer Science or related
- Proficient in linux, Python based test automation frameworks and tools using REST APIs
- Hands on experience in development/integration of E2E test automation framework and tools for embedded software devices
- Experienced in developing and maintaining web based tools using Javascript, React
- Proficiency with DevOps, continuous integration tools (Jenkins, Gitlab CI, Teamcity, Docker and Kubernetes)
- Experience with CI/CD pipeline development and deployment via AWS or GCP cloud technologies
- Experience with Unit Testing frameworks – pytest/pyunit and cypress, playwright for UI testing
- Experience of developing web applications using Flask, FastAPI, Django, Nginx
- Experience and knowledge of using generative AI
- Expert problem-solving and technical troubleshooting skills
- Ability to learn new technologies quickly
- A self-directed professional able to work independently
- Ability to work through ambiguous requirements and being flexible/adaptable to change
- Comfortable and experienced working with cross-functional peers and internal stakeholders across European and US timezones
- Excellent communication and collaborative skills
- Experience with retail Consumer Electronic (CE) devices, ideally in the Over The Top (OTT) streaming domain
- Previous experience with Non-Functional Testing (Performance Testing, Stress Testing)
- Knowledge of network technologies and libraries such as TCP/IP and HTTP
- Previous experience and knowledge of image processing and inferencing, creating computer vision capabilities for visual testing
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Our Hybrid Work Approach
Roku fosters an inclusive and collaborative environment where teams work in the office Monday through Thursday. Fridays are flexible for remote work except for employees whose roles are required to be in the office five days a week or employees who are in offices with a five day in office policy.
Benefits
Roku is committed to offering a diverse range of benefits as part of our compensation package to support our employees and their families. Our comprehensive benefits include global access to mental health and financial wellness support and resources. Local benefits include statutory and voluntary benefits which may include healthcare (medical, dental, and vision), life, accident, disability, commuter, and retirement options (401(k)/pension). Employees are supported in taking time off, in accordance with local leave policies and other personal needs to support their evolving work and life needs. It's important to note that not every benefit is available in all locations or for every role. For details specific to your location, please consult with your recruiter.
Accommodations
Roku welcomes applicants of all backgrounds and provides reasonable accommodations and adjustments in accordance with applicable law. If you require reasonable accommodation at any point in the hiring process, please direct your inquiries to EmployeeRelations@Roku.com.
The Roku Culture
Roku is a great place for people who want to work in a fast-paced environment where everyone is focused on the company's success rather than their own. We try to surround ourselves with people who are great at their jobs, who are easy to work with, and who keep their egos in check. We appreciate a sense of humor. We believe a fewer number of very talented folks can do more for less cost than a larger number of less talented teams. We're independent thinkers with big ideas who act boldly, move fast and accomplish extraordinary things through collaboration and trust. In short, at Roku you'll be part of a company that's changing how the world watches TV.
We have a unique culture that we are proud of. We think of ourselves primarily as problem-solvers, which itself is a two-part idea. We come up with the solution, but the solution isn't real until it is built and delivered to the customer. That penchant for action gives us a pragmatic approach to innovation, one that has served us well since 2002.
To learn more about Roku, our global footprint, and how we've grown, visit https://www.weareroku.com/factsheet.
By providing your information, you acknowledge that you want Roku to contact you about job roles, that you have read Roku's Applicant Privacy Notice, and understand that Roku will use your information as described in that notice. If you do not wish to receive any communications from Roku regarding this role or similar roles in the future, you may unsubscribe at any time by emailing WorkforcePrivacy@Roku.com.
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Senior Software Engineer, Front End
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ABOUT PIONEERING INTELLIGENCE
Pioneering Intelligence builds on Flagship Pioneering’s legacy of founding cutting-edge science and computational ventures, harnessing recent advances in AI, machine learning, and data to accelerate fundamental research and create a portfolio of AI-first companies. As part of Flagship’s integrated model of science, entrepreneurship, and capital, it transforms breakthrough ideas into world-changing companies, elevating the AI advances happening across the ecosystem in human health, sustainability, and beyond.
Position Summary
We are seeking a Senior Front End Engineer. As a key contributor in this early-stage initiative, you will architect and implement the user experience for a new platform that leverages large language models (LLMs) and AI agents to enhance complex, high-stakes workflows. This is a user-first, AI-augmented product — your work will transform abstract reasoning tasks into intuitive, high-performance tools that empower experts across diverse research domains. You will lead front-end development and collaborate closely with engineers, AI scientists, product designers, and end users. This is a rare opportunity to shape a greenfield product at the intersection of usability, flexibility, and advanced reasoning.
Key Responsibilities
- Architect, develop, and maintain high-quality, testable front-end code and workflows aligned with complex scientific and analytical use cases.
- Translate user stories, wireframes, and prototypes into production-ready features emphasizing clarity, maintainability, and reusability.
- Implement responsive, accessible, and performant UIs optimized for data-rich, interactive workflows.
- Ensure security, scalability, and observability of front-end services in cloud environments (AWS).
- Design and implement user interfaces from scratch, combining strong visual design with robust engineering.
- Create and maintain scalable, consistent, and visually appealing UI components using a modern React.js stack.
- Maintain front-end quality through comprehensive testing and validation of user flows and interface behavior.
- Develop and maintain test suites (unit, integration, and end-to-end) for UI reliability.
- Apply DevOps/GitOps practices for automated testing, deployment, and monitoring.
- Mentor engineers and scientists, driving technical quality and ensuring extensibility and performance across evolving use cases.
Qualifications
- B.S. in Computer Science, Engineering, or related field, with 6+ years of professional software development experience.
- Expertise with modern front-end frameworks and tools, including React.js, TypeScript, Tailwind CSS, Redux Toolkit, Playwright, and Shadcn.
- Strong experience with Node.js.
- Skilled in writing and maintaining comprehensive test suites (Jest, React Testing Library, Cypress).
- Experience with system design, performance optimization, observability, and operational excellence for parallel LLM workloads.
- Strong intuition for UX design and a passion for building intuitive, workflow-first products.
- Excellent communication skills and a collaborative mindset in fast-moving, cross-functional environments.
Preferred Qualifications
- Background in scientific domains such as biology, chemistry, or complex systems (a plus, not required).
Why Join Us
By joining this initiative within Flagship’s Pioneering Intelligence group, you will:
- Help define a new category of intelligent software tools for real-time human–AI collaboration.
- Build a greenfield product at the intersection of usability, reasoning, and scientific innovation.
- Collaborate with visionary thinkers and top-tier researchers across Flagship’s ecosystem.
- Thrive in a supportive, mission-driven culture with access to world-class technical and operational resources.
- Shape the future of AI-powered discovery in a role that combines engineering excellence with health impact.
About Flagship Pioneering
Flagship Pioneering invents and builds platform companies, each with the potential for multiple products that transform human health, sustainability and beyond. Since its launch in 2000, Flagship has originated more than 100 companies. Many of these companies have addressed humanity’s most urgent challenges: vaccinating billions of people against COVID-19, curing intractable diseases, improving human health, preempting illness, and feeding the world by improving the resiliency and sustainability of agriculture.
Flagship has been recognized twice on FORTUNE’s “Change the World” list, an annual ranking of companies that have made a positive social and environmental impact through activities that are part of their core business strategies and has been twice named to Fast Company’s annual list of the World’s Most Innovative Companies. Learn more about Flagship at www.flagshippioneering.com.
At Flagship, we accept impossible missions to enable bigger leaps. Our core values guide us through uncertainty and toward lasting impact.
We are an equal opportunity employer. All qualified applicants will be considered for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected by law.
We recognize that great candidates often bring unique strengths without fulfilling every qualification. If you have some of the experience listed above but not all, please apply anyway. We are dedicated to building diverse and inclusive teams and look forward to learning more about your background and interest in Flagship.
Recruitment & Staffing Agencies: Flagship Pioneering and its affiliated Flagship Lab companies (collectively, “FSP”) do not accept unsolicited resumes from any source other than candidates. The submission of unsolicited resumes by recruitment or staffing agencies to FSP or its employees is strictly prohibited unless contacted directly by Flagship Pioneering’s internal Talent Acquisition team. Any resume submitted by an agency in the absence of a signed agreement will automatically become the property of FSP, and FSP will not owe any referral or other fees with respect thereto.
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The salary range for this role is $108,000 - $176,000. Compensation for the role will depend on a number of factors, including a candidate’s qualifications, skills, competencies, and experience. Pioneering Intelligence currently offers healthcare coverage, annual incentive program, retirement benefits and a broad range of other benefits. Compensation and benefits information is based on Pioneering Intelligence's good faith estimate as of the date of publication and may be modified in the future.
Privacy Notice for Applicants: When you apply for a role at Flagship Pioneering or one of its portfolio companies, we collect and use personal information you provide (such as your name, contact details, work history, and application materials) to evaluate your application, communicate with you, and comply with legal obligations. Your application data is processed through Greenhouse, our applicant tracking system, and may also be reviewed using AI-assisted screening tools. We do not sell your personal information. California residents have rights under the CCPA/CPRA including to know, delete, and opt out of the sharing of their personal information. If you are located in the EU or UK, we process your data under GDPR and you have rights to access, rectify, and erase your data. To exercise your rights or for questions, contact privacy@flagshippioneering.com.
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Apply to Flagship Pioneering, Inc.