Senior Software Engineer, Python/Typescript
Roku · Cambridge, United Kingdom · 21d ago
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.
What does the team work on?
Roku's Automation support and Tools team focuses on providing innovative, impactful tools and SW solutions including AI enabled engineering capabilities to help accelerate validation efforts, improve efficiency, enhance productivity of all engineering team across Roku's entire embedded SW org. The team works across full-stack applications, backend services, and scalable platform services to improve developer productivity, end-to-end testing experience of Roku products and services. You will be joining a talented, high-performance team of developers with a strong delivery culture. We are looking for someone who can help us keep up this pace and continue delivering high quality as we grow.
What is the role?
Roku is looking for a Senior Software Engineer to join the Embedded Software Automation and Tools team to build full stack applications and services that support end-to-end automation and test infrastructure. This role involves designing and delivering full stack solutions that support cross-functional internal and external stakeholders across the Roku ecosystem. You will contribute across frontend and backend systems, with a strong focus on performance, reliability, and scalability. You will build and evolve APIs and microservices, and help integrate modern AI capabilities into production experiences where they add clear user value. The role requires strong technical judgment, cross-functional collaboration, and the ability to move from concept through delivery in a fast-paced environment.
How will I use AI at Roku?
At Roku, we don't just use AI, we work with it. We use AI agents and smart tooling across brainstorming, planning, analysis, and implementation. People set the direction, exercise judgment, and own the outcomes.
We're looking for curious, adaptable builders who can show how they've used AI or automation to move faster, raise the bar, and scale their impact. We value your AI skills if you have built fluency across the agentic engineering toolchain — coding harnesses like Claude Code or Cursor, MCP servers, custom skills, or agentic frameworks — and can describe projects where you shipped real customer-facing work with these tools. You know how to drive an agent, validate its output, and ramp on an unfamiliar codebase with an agent helping you.
What are the responsibilities of the role?
- Design and build full stack web applications to support end-to-end automation and test infrastructure
- Integrate AI capabilities including LLM-driven experiences in existing and new toolsets
- Develop APIs and microservices to support test and quality workflows
- Deploy, scale, and monitor services in cloud environments using Kubernetes
- Build robust, highly available backend and frontend systems for software quality and automation use cases
- Collaborate with cross-functional teams to define and deliver external partner-facing and internal tooling
- Architect and own technical solutions and designs, evaluating design alternatives and trade-offs to deliver pragmatic, scalable, reliable, and maintainable solutions
- Create and maintain requirement and technical documentation, clearly defining user requirements, expected product behaviour, and relevant technical constraints
- Troubleshoot production issues and improve performance and reliability, enabling widespread adoption and use
- Participate in code reviews and contribute to engineering best practices
- Mentor less experienced engineers through technical guidance and architectural reviews
What experience would help someone be successful in this role at Roku?
- 7+ years of proven full stack engineering experience with production web applications and backend services
- Strong skills and programming experience in Python
- Experience developing web applications using FastAPI, Flask, or Django
- Experience with frontend development in TypeScript/JavaScript, Next.js, React, and MUI frameworks
- Familiarity with PostgreSQL, Redis, and REST API design and integration
- Experience with test-driven development, CI/CD workflows, and continuous integration tools (Jenkins, GitLab)
- Experience integrating AI technologies such as Skills, Agents, MCP Servers, or RAG pipelines
- Understanding of authentication and authorization approaches including OpenID and SAML
- Experience deploying cloud-native services on AWS with containerized infrastructure and Kubernetes
- Experience with message queuing systems such as RabbitMQ or Apache Kafka
- Demonstrated AI and agentic-tooling fluency per the section above
- Strong problem-solving and technical troubleshooting skills
- A self-directed professional able to work independently
- Ability to work through ambiguous requirements and adapt to change
- Comfortable working with cross-functional peers and internal stakeholders across European and US timezones
- Excellent communication and collaborative skills
- Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field
#LI-JB6
What's Roku's approach to hybrid working?
Roku fosters an inclusive and collaborative environment where teams generally work in the office Monday through Thursday. Fridays are generally flexible for remote work, except for employees whose specific roles or assigned office location require five days' a week attendance.
What are some of the 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.
What should I know about Roku's 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.
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