Senior Software Engineer, 3D Engine Scalability

Location: San Mateo, California, United States; office presence required Tuesday, Wednesday, and Thursday, with optional presence Monday and Friday

Salary: $243,290–$295,250 USD annual base pay

Company

Roblox builds a 3D social gaming platform and tools that enable developers and creators to build immersive digital experiences.

What you will do

• Design and ship 3D engine systems for avatar and environment geometry.
• Build mesh processing, level-of-detail, transcoding, streaming, runtime loading, and related performance systems.
• Partner with Rendering, Avatar, Studio, and external developer teams to make features usable in Roblox experiences.
• Profile and optimize game-engine performance across a wide range of devices, especially mobile platforms.
• Drive projects from definition through implementation, rollout, and production impact.
• Mentor engineers and help maintain high standards for technical quality and code health.

Requirements

• 8+ years of professional experience building and shipping high-performance systems in game engines, real-time simulation, robotics, AR/VR, or similar domains.
• Deep C++ proficiency with experience writing clean, efficient, and maintainable code in large codebases.
• Hands-on production experience with real-time 3D rendering, mesh or geometry processing, level of detail, animation/skinning, spatial data, 3D asset pipelines, or GPU/client performance.
• Experience balancing CPU/GPU time, memory, loading latency, visual quality, and frame-time stability on constrained platforms such as mobile or console.
• Ability to own ambiguous projects end-to-end, define approaches, implement solutions, manage rollouts, and assess production consequences.
• Ability to collaborate across engineering and developer-facing teams and explain complex technical topics clearly.

Culture & Benefits

• Work on systems supporting large-scale, high-fidelity multiplayer experiences.
• Collaborate across Engine, Rendering, Avatar, Studio, and developer-facing teams.
• Full-time employees are eligible for equity compensation and company benefits.
• Equal employment opportunity and reasonable accommodation support are provided.
• The company may not be able to employ candidates requiring certain US visa categories or support future H-1B sponsorship.