Who you are

- 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

- 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

- Robust 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

What the job involves

- 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

- 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

- 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

Benefits

- Medical, wellness and financial benefits

- Free snacks and access to the company fitness center

- Unlimited paid time off policy

- Work from home opportunities

📌 Senior Software Engineer (Cambridge)
🏢 Roku
📍 Cambridge