Senior Software Engineer

Salary: £60,000 - 100,000 per year

Requirements:

• Minimum of 5+ years of software engineering experience with a heavy focus on C++ (C++14/17/20).
• Deep understanding of systems programming, including memory management, multi-threading, and hardware-software abstraction layers.
• Experience with graphics APIs (e.g., OpenGL, Vulkan, or proprietary embedded graphics stacks) and rendering pipelines.
• Proficiency in Python for tooling and automation, with a working knowledge of BrightScript or JavaScript being a significant plus.
• Strong root cause analysis skills, specifically using tools like GDB, Valgrind, or platform-specific profilers.
• Knowledge of AI applications and hands-on experience using generative AI tools to accelerate systems-level development.
• A proactive mindset with a passion for squeezing every drop of performance out of embedded systems and a commitment to data-driven optimization.

Responsibilities:

• Architect and optimize core C++ UI frameworks and rendering engines to ensure smooth performance across a diverse range of hardware profiles.
• Lead technical investigations into system-level bottlenecks, memory leaks, and GPU/CPU synchronization issues.
• Develop and maintain low-level graphics APIs and layout systems that serve as the backbone for our application ecosystem.
• Integrate AI/ML capabilities at the systems level, leveraging generative AI tools to optimize code generation and automate performance profiling.
• Collaborate with firmware and driver teams to leverage hardware-specific optimizations and ensure seamless integration with the underlying OS.
• Mentor junior developers through deep-dive code reviews, architectural design sessions, and technical documentation of core systems.
• Drive engineering excellence by implementing advanced debugging tools, automated performance regression suites, and modern C++ best practices.

Technologies:

• AI
• Architect
• Backbone
• BrightScript
• Embedded
• Firmware
• Hardware
• Support
• JavaScript
• OpenGL
• Python
• Roku
• UX UI Design
• C++
• LESS

More:

We are Roku, the #1 TV streaming platform in the U.S., Canada, and Mexico, working to power every television in the world and connect the entire TV ecosystem. Our UI Systems team builds the high-performance engines and core graphics infrastructure that power millions of devices, operating in a collaborative, high-trust environment with firmware and silicon teams. We offer a fast-paced, inclusive culture where everyone is focused on the companys success, with a hybrid working model that is generally in the office Monday through Thursday and flexible for remote work on Fridays, plus a broad benefits package that may include healthcare, life, accident, disability, commuter, retirement options, and access to mental health and financial wellness support.

last updated 40 week of 2026

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