Senior Software Engineer, C++ UI

Overview

In this Senior Software Engineer role, you will help architect and optimize Roku’s core UI systems and rendering engines to deliver a smooth, graphics-rich experience across embedded devices. You’ll tackle low-level performance challenges, shape APIs for higher-level frameworks, and collaborate with firmware and driver teams to leverage hardware capabilities. The role combines systems programming with AI-enabled tooling to accelerate development and profiling. It’s a hands-on position aimed at pushing microsecond-level performance in a fast-growing, collaborative environment.

Pay / Benefits

• global mental health resources
• financial wellness support
• healthcare (medical, dental, vision)
• life, disability, and commuter benefits
• retirement options (401(k)/pension)
• paid time off and personal leave

Responsibilities

• Architect and optimize core C++ UI frameworks and rendering engines for cross-hardware performance
• Lead investigations into bottlenecks, memory leaks, and GPU/CPU synchronization issues
• Develop and maintain low-level graphics APIs and layout systems for Roku’s ecosystem
• Integrate AI/ML capabilities at the systems level to optimize code generation and profiling
• Collaborate with firmware and driver teams for hardware-specific optimizations
• Mentor junior developers via code reviews, design sessions, and core-systems documentation
• Drive engineering excellence with debugging tools, automated performance regression suites, and modern C++ practices

Key requirements

• 5+ years of software engineering with a strong C++ focus (C++14/17/20)
• Deep systems programming experience (memory management, multi-threading, abstraction layers)
• Experience with graphics APIs (OpenGL, Vulkan, or proprietary embedded stacks) and rendering pipelines
• Proficiency in Python for tooling; BrightScript or JavaScript knowledge a plus
• Strong root-cause analysis skills using GDB, Valgrind, or platform profilers
• Knowledge of AI applications and hands-on experience with generative AI tools
• Proactive, performance-driven mindset for embedded systems

• collaboration with cross-functional teams
• mentoring and technical leadership
• problem-solving and analytical thinking
• C++ (14/17/20)
• memory management
• multi-threading

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