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Roku

Senior Software Engineer, Roku UI

Cambridge, United Kingdom
Level
Senior

Not stated in the posting: salary, work type, visa.

Open. First seen 3 October 2026.

Apply on www.weareroku.com →

About the role

Roku's standard text

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

At Roku, the UI team builds the foundational frameworks, tooling, and high‑performance UI components that power experiences across millions of devices. We own the middleware and UI layers that enable smooth navigation, responsive interactions, rich animations, and consistent developer workflows across the platform. Our work spans graphics rendering, layout and animation systems, performance optimization, and developer APIs that make it easy to create reliable, visually compelling applications at scale.

We operate in a collaborative, high‑trust environment and partner closely with firmware, platform, and product teams to ensure the end‑to‑end experience is fast, robust, and ready for what’s next.

About the role

As a Senior Software Engineer on the UI team, you’ll design, implement, and optimize systems that underpin Roku’s user experience and developer platform. You’ll work on performance‑critical code paths for graphics rendering, animation, layout, and UI frameworks, ensuring buttery‑smooth visuals and instant responsiveness across a wide range of devices. You’ll help shape core architecture, collaborate across the stack with hardware, firmware, and application teams, and see your work directly impact tens of millions of users.

This role is ideal for engineers who love deep technical problem‑solving, care about performance down to the last millisecond, and want to build the invisible foundations that make great user experiences possible.

What you’ll be doing

  • Build scalable UI features optimized for millions of users
  • Lead technical investigations and architect solutions across middleware, UI frameworks, and rendering pipelines
  • Integrate AI/ML capabilities and leverage generative AI tools to accelerate development and improve developer productivity
  • Collaborate with cross‑functional teams to deliver global platform features with measurable performance and reliability gains
  • Develop engineering tooling, frameworks, and automated workflows that raise developer efficiency and code quality
  • Mentor junior developers through design reviews, pair programming, and clear technical documentation
  • Stay current with platform, graphics, and AI trends; proactively identify opportunities to improve performance and developer experience

We’re excited if you have

  • Minimum of 5+ years of software engineering experience with a focus on UI frameworks or application development
  • Advanced BrightScript (or JavaScript‑like) skills and proficiency in Python
  • Experience using Typescript is a plus!
  • Knowledge and hands-on experience using C++
  • Strong root cause analysis skills and clear, effective technical communication
  • Knowledge of AI applications and hands‑on experience with generative AI tools and workflows
  • A proactive mindset with passion for continuous learning, fast iteration, and data‑driven optimization

#LI-NM1

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).

Roku's standard text

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.

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.

What this role asks for

Particular to this role

JavaScript · TypeScript

Rare in Roku's other 174 open postings.

Standard for software engineering roles

Python

Common in software engineering postings at any company.

51% of this description is written for the role. The rest is Roku's standard text, folded away below.

Read against Roku's other open postings on this site.

The team: PIPELINE

This role is one of 11 open in PIPELINE.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

C++ (8 of 11), Generative AI (8 of 11), Python (8 of 11), Java (6 of 11), Machine Learning (6 of 11), AWS (5 of 11), Embedded Systems (5 of 11)

OTHER ROLES ON THIS TEAM

From the team and dates on Roku's own job board.

Other openings for this role

3 open postings for this role in Cambridge, United Kingdom, first posted 3 October 2026. The company is likely hiring for more than one position. None has been taken down and posted again.

See Software Engineer salaries in the UK →

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