Software Engineer, UI

Roku, Inc.; Cambridge; On-site; GBP 55,000 - 75,000; Full time

Benefits offered by this job

Comprehensive healthcare benefits

401(k) retirement options

Mental health support

Job summary

Roku, Inc. is on the lookout for a Software Engineer for the Device Monetization and Themed Experiences team in Cambridge, England. You will implement and optimize graphics rendering systems, solve performance-critical challenges, and directly impact millions of users.

The role requires at least 3 years of software engineering experience, preferably with BrightScript or JavaScript. Enjoy working in a collaborative and innovative environment? Join us to contribute to streaming technology!

Qualifications

• 3+ years of software engineering experience with UI development exposure.
• C++ in an embedded environment.
• Strong problem-solving and technical communication abilities.

Responsibilities

• Build scalable UI features optimized for millions of users.
• Contribute to technical investigations and solutions for middleware and UI challenges.
• Collaborate with cross-functional teams on global platform features.

Skills

Software engineering experience

UI development

Proficiency in BrightScript or JavaScript-like

Python experience

Problem-solving skills

Interest in AI applications

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 team

At Roku, the Device Monetization and Themed Experiences (DMTE) team, a part of the Advertising organization, is where the magic behind the scenes happens. We’re the engineers who build the high-performance graphics and UI foundations that power the FRAME engine — the core technology enabling Roku’s smooth, responsive, and visually rich experiences on millions of devices worldwide. Our work lives in the middleware and UI layers, and its impact is felt every time a user navigates a menu, enjoys an animated ad, or is wowed by the bespoke experience built to market the latest TV show or Movies. We thrive on solving technical challenges — from optimizing UI rendering to fine‑tuning memory usage — using BrightScript (or JavaScript‑like) to deliver rock‑solid, high‑performance solutions. We work in a collaborative, high‑trust environment where great ideas can come from anywhere, partnering closely with firmware, UI, and product teams to ensure our platform is lightning fast, reliable, and ready for the next generation of streaming innovation. If you love building the invisible foundations that make great user experiences possible, this is the team for you.

About the role

As a Software Engineer in the DMTE team, you’ll contribute to Roku’s platform innovation — implementing and optimizing BrightScript (or JavaScript‑like) systems for graphics rendering and the FRAME engine. You’ll tackle performance‑critical challenges, ensuring our devices deliver smooth visuals and instant responsiveness at scale. You’ll have the opportunity to learn about core architecture, work across the stack with hardware, firmware, and application teams, and see your work directly impact tens of millions of users. This is a role for engineers who love technical problem‑solving, care about performance, and want to work on technology that quietly powers an entire ecosystem. If you’re ready to learn, grow, and contribute to the future of streaming, we’d love to hear from you.

What you’ll be doing

• Build scalable UI features optimized for millions of users
• Contribute to technical investigations and solutions for middleware and UI challenges
• Explore integrating AI/ML capabilities and leverage generative AI tools to accelerate development
• Collaborate with cross‑functional teams on global platform features
• Develop engineering tools and learn from experienced developers
• Stay current with AI trends and emerging technologies

We're excited if you have

• 3+ years software engineering experience with UI development exposure
• C++ in an embedded environment
• Proficiency in BrightScript (or JavaScript‑like) skills plus some experience with Python
• Strong problem‑solving and technical communication abilities
• Interest in AI applications and a willingness to learn about generative AI tools
• Proactive mindset with passion for continuous learning and fast iteration

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 [e-mail].