Roblox
Senior Software Engineer, 3D Systems
$243K–$295K
San Mateo, CA, United States · Senior · Full-time · Posted Sep 15, 2026
- Experience
- 8+ years of professional experience building and shipping high-performance systems in game engines, real-time simulation, robotics, AR/VR, or similar.
- Visa sponsorship
- For US-based roles, Roblox may not be able to employ candidates whose work authorization is related to certain U.S. visa categories, or support future H-1B sponsorship at this time.
About the job
Designs and ships scalable 3D engine systems for avatar and environment geometry, improving performance across devices, especially mobile.
What you'll do
- Build geometry systems for mesh processing, LOD, transcoding, streaming, runtime loading, and performance.
- Partner with Rendering, Avatar, Studio, and external developers to make features usable in Roblox experiences.
- Profile and improve engine performance; lead projects, mentor engineers, and support technical quality.
What they ask for
- Deep proficiency in C++ and experience writing clean, efficient, maintainable code in large codebases.
- Hands-on experience building at least one production system involving real-time 3D rendering, geometry processing, LOD, animation/skinning, spatial data, 3D asset pipelines, or GPU/client performance.
- Experience diagnosing CPU/GPU, memory, loading latency, visual quality, and frame-time tradeoffs on constrained platforms.
- Track record of driving ambiguous work end-to-end, plus effective cross-team collaboration and clear technical communication.
Pay
$243,290 — $295,250 USD (base salary)
Tools
C++
Model-written summary · the original posting is authoritative