Senior Software Engineer, Roku UI

Reposted 9 Days Ago
Be an Early Applicant
Cambridge, Cambridgeshire, England, GBR
In-Office
Senior level
News + Entertainment
The Role
As a Senior Software Engineer on the UI team, you will design, implement, and optimize high-performance UI systems, integrate AI/ML, and mentor junior engineers to enhance Roku's user experience across devices.
Summary Generated by Built In
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 future-ready.

 

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 across graphics rendering, animation, layout, and UI frameworks, ensuring smooth visuals and highly responsive interactions across a wide range of devices.

You’ll play a key role in shaping core architecture, working across the stack with hardware, firmware, and application teams, and delivering solutions that directly impact tens of millions of users. This role is ideal for engineers who enjoy deep technical problem-solving, care about performance at a systems level, and want to build the foundational layers that power great user experiences.

 

What You’ll Be Doing
  • Build and scale UI frameworks and features optimized for millions of users
  • Design and implement performance-critical systems across rendering pipelines, layout engines, and animation frameworks using C++
  • Develop and maintain developer-facing tools and UI layers 
  • Lead technical investigations and architect solutions across middleware and UI infrastructure
  • Integrate AI/ML capabilities into developer workflows and platform features, leveraging generative AI to improve productivity and user experience
  • Collaborate with cross-functional teams to deliver platform features with measurable gains in performance, reliability, and scalability
  • Create tooling, frameworks, and automation that improve developer efficiency and code quality
  • Mentor junior engineers through design reviews, pair programming, and technical guidance
  • Stay current with advancements in graphics, UI systems, and AI, and proactively identify opportunities for improvement

We’re Excited If You Have
  • 6+ years of software engineering experience with a strong focus on UI frameworks, systems, or application development
  • Strong proficiency in C++ for performance-critical systems and rendering pipelines
  • Strong proficiency in TypeScript for 
  • Experience with Javascript/BrightScript or similar scripting languages
  • Proficiency in Python for tooling, automation, or AI workflows
  • Hands-on experience integrating AI/ML and generative AI tools into development workflows or product features
  • Solid understanding of graphics systems, rendering, or UI performance optimization
  • Strong debugging and root cause analysis skills
  • Clear and effective technical communication skills
  • A proactive mindset with a focus on continuous learning, fast iteration, and data-driven decision making
 #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). 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 [email protected].


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 [email protected].

Skills Required

  • 6+ years of software engineering experience
  • Strong proficiency in C++
  • Strong proficiency in TypeScript
  • Experience with JavaScript/BrightScript or similar scripting languages
  • Proficiency in Python for tooling and automation
  • Hands-on experience integrating AI/ML tools
  • Strong debugging and root cause analysis skills
  • Clear and effective technical communication skills

Roku Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Roku and has not been reviewed or approved by Roku.

  • Fair & Transparent Compensation Pay is positioned as competitive across many roles, with frequent emphasis on strong base and total compensation relative to market expectations. Fair-pay perception appears comparatively stronger than overall satisfaction with the broader rewards package.
  • Healthcare Strength Healthcare coverage is framed as a standout, with sizable employer premium contributions that can reduce employee premiums significantly depending on plan choice. Preventive care and mental-health support are also described as part of the core offering.
  • Leave & Time Off Breadth Time-off offerings are presented as broad, including paid holidays, PTO, and multiple leave categories such as bereavement and family-related leave. Self-managed or “unlimited” PTO is also described for many salaried roles, supporting flexibility in taking time off.

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The Company
HQ: San Jose, CA
2,724 Employees
Year Founded: 2002

What We Do

Roku pioneered streaming to the TV. We connect users to the streaming content they love, enable content publishers to build and monetize large audiences, and provide advertisers with unique capabilities to engage consumers. Roku streaming players and Roku TV™ models are available around the world through direct retail sales and licensing arrangements with TV OEMs and service operators.

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