Senior Software Engineer, Cross Platform Devices

Confirmed live in the last 24 hours

Roku

Cambridge, United Kingdom

Hybrid

Posted March 31, 2026

Job Description

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 role

With more than 85 million people using our 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. Our goal is to help people find what they want and make it easier for people to stream. We accomplish this using state-of-the-art technology and engineering to make it happen, considering the customer as the center of all that we do.

We are looking for a Senior Software Engineer to focus on developing core features for the Roku platform UI. We are looking for someone with experience building high-performing applications and SDK components who wants to code on a wildly popular consumer electronics platform. This is an excellent role for a senior professional who enjoys a high level of visibility, thrives on having a critical business impact, and is excited to work on a component that touches almost everything streamed on the Roku platform.

About the team

This team spends most of its time working on customer focused features that improve the user experience, from cross-platform device experiences, TV & Player centric UI, and IoT integration with Roku OS. Our product roadmap helps us accelerate our growth and scale, putting surprising new features into the hands of tens of millions of Roku users worldwide.

Our developers and engineers are owners. They are motivated from within, finding and taking on a feature or project simply because that problem needs to be solved and shipped. But that individual must work together with different engineering teams, UI design, product teams, QA, and business leadership to make things happen, which means that engineers succeed here because they can maintain that independent spirit and motivation within a deeply collaborative environment. We are the pragmatic dreamers inventing and re-inventing the world of streaming media.

What You’ll Be Doing

Lead design and architecture for core Roku OS UI frameworks and components, setting performance, reliability, and accessibility bars across millions of devices; drive cross‑team alignment with platform, firmware, and product partners.
Own end‑to‑end delivery of complex, multi‑release UI initiatives, from requirements and technical strategy through implementation, instrumentation, launch, and post‑launch optimization.
Make deep contributions across our stack: C++ for embedded/UI systems, BrightScript for app/channel surfaces, and TypeScript for developer tooling and UI apps; proactively improve APIs, test coverage, and observability.
Define and implement performance architectures for rendering, layout, and animation; establish metrics, profiling methods, and regression gates for startup time, frame pacing, memory, and power.
Mentor and level up engineers via design reviews, code reviews, pairing, and technical guidance; elevate engineering standards, documentation, and operational excellence across Cambridge and partner sites
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