Senior Software Engineer, Roku UI

Roku, Inc.; Gloucester; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading streaming technology company based in Gloucester seeks an experienced software engineer to join their UI team. You will design and optimize UI features that engage millions of users, lead architecture discussions, and integrate advanced AI capabilities to enhance developer productivity. The ideal candidate has over 5 years of software engineering experience focusing on UI frameworks and possesses strong skills in BrightScript, Python, and C++. The role offers a hybrid work approach and includes a comprehensive benefits package.

Benefits

Comprehensive benefits package

Flexible remote work Fridays

Healthcare benefits

Qualifications

• Minimum of 5+ years of software engineering experience focused on UI frameworks.
• Advanced skills in BrightScript or JavaScript and proficiency in Python.
• Experience with Typescript is a plus.
• Hands-on experience with C++.
• Strong root-cause analysis and technical communication skills.

Responsibilities

• Design, implement, and optimize UI features for millions of users.
• Lead architecture solutions across middleware and UI frameworks.
• Integrate AI/ML capabilities to improve developer productivity.
• Collaborate with teams for global platform features.
• Mentor junior developers through design reviews.

Skills

Software engineering experience

UI frameworks development

Proficiency in BrightScript

Proficiency in Python

Knowledge of C++

Technical communication

AI applications knowledge

Generative AI tools experience

Job description

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.

Responsibilities

• Design, implement, and optimize UI features for millions of users.
• Lead 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.

Qualifications

• 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.

Hybrid Work Approach

Roku works in the office Monday through Thursday and offers flexible remote work Fridays for most roles. Fridays are flexible for remote work except for employees whose roles are required to be in the office five days a week or employees who are in offices with a five‑day in‑office policy.

Roku is committed to offering a diverse range of benefits, including a comprehensive benefits package that supports employees and families worldwide. Local benefits include statutory and voluntary benefits such as healthcare (medical, dental, and vision), life, accident, disability, commuter, and retirement options (401(k)/pension). Employees can take time off work for vacation and other personal reasons to balance evolving work and life needs.

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 the recruiting team.

Roku is an equal‑opportunity employer and welcomes applicants from diverse backgrounds.