Senior UI Systems Engineer — C++ Graphics & Low-Level

Roku; Cambourne; Híbrido; GBP 85.000 - 110.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid work model

Mental health resources

Retirement plan

Healthcare benefits

Descripción de la vacante

Roku is seeking a Senior Software Engineer to architect core UI systems and graphics performance. You will design and optimize low-level code, tackle system-wide bottlenecks, and build APIs that power Roku’s high-performance UI across devices.

The role emphasizes memory efficiency, hardware acceleration, and collaboration with firmware teams, with opportunities to mentor others and advance CI tooling and profiling capabilities.

Formación

• 5+ years of software engineering experience with C++ (14/17/20).
• Strong systems programming, memory management, and multi-threading.
• Experience with graphics APIs and rendering pipelines.
• Python for tooling; BrightScript/JavaScript a plus.
• Experience with AI applications in systems development.

Responsabilidades

• 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.

Conocimientos

C++

Systems programming

Graphics APIs

Python tooling

Root cause analysis

Herramientas

GDB

Valgrind

Profilers

Descripción del empleo

Roku is seeking a Senior Software Engineer to architect core UI systems and graphics performance. You will design and optimize low-level code, tackle system-wide bottlenecks, and build APIs that power Roku’s high-performance UI across devices.

The role emphasizes memory efficiency, hardware acceleration, and collaboration with firmware teams, with opportunities to mentor others and advance CI tooling and profiling capabilities.