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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer, Roku UI - **Company:** Roku, Inc. - **Location:** Cambridge, UK (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Abstraction Layers, Application Programming Interfaces (APIs), Artificial Intelligence, C++ (Programming Language), Profiling, Code Review, Software Debugging, Memory Management, Firmware, Python (Programming Language), Machine Learning, OpenGL, Memory Leaks, Software Engineering, System Programming, Multithreading, Ios Frameworks, Generative AI, Hardware Acceleration, BrightScript - **Published:** May 31, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/x/37778360/ ## About the Role 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. Our Hybrid Work Approach Roku fosters an inclusive and collaborative environment where teams work in the office Monday through Thursday. 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. ## Description As a Senior Software Engineer, you will be a key architect of the core systems that underpin Roku's user experience. You will design and implement performance-critical code within our UI engine, focusing on graphics primitives, memory efficiency, and hardware acceleration. You'll tackle complex systems-level challenges-such as optimizing frame rates on resource-constrained hardware and building robust APIs for higher-level frameworks. This role is ideal for engineers who thrive on low-level systems programming, care about performance down to the microsecond, and want to build the high-performance foundations that power the future of television. What you'll be doing Architect and optimize core C++ UI frameworks and rendering engines to ensure buttery-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 Roku's 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. ## Related Videos - [DevOps at Netflix](https://www.wearedevelopers.com/videos/270-devops-at-netflix) - [Profiling Symfony & PHP apps with Blackfire](https://www.wearedevelopers.com/videos/265-profiling-symfony-php-apps-with-blackfire) - [Playing Pong on a shoulder press machine](https://www.wearedevelopers.com/videos/100140-playing-pong-on-a-shoulder-press-machine) - [The weekly developer show: Boosting Python with CUDA, CSS Updates & Navigating New Tech Stacks](https://www.wearedevelopers.com/videos/1293-the-weekly-developer-show-boosting-python-with-cuda-css-updates-navigating-new-tech-stacks) - [Enhancing Workload Security in Kubernetes](https://www.wearedevelopers.com/videos/356-enhancing-workload-security-in-kubernetes) - [Agent Smith Gets Hardware: Autonomous IoT Hacking From Debug Port to Cloud API](https://www.wearedevelopers.com/videos/100258-agent-smith-gets-hardware-autonomous-iot-hacking-from-debug-port-to-cloud-api) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers)