Roblox
Senior Software Engineer, 3D Engine Scalability
$243K–$295K
San Mateo, CA, United States · Senior · Full-time · Posted Sep 1, 2026
- Experience
- 8+ years of professional experience building and shipping high-performance systems in game engines, real-time simulation, robotics, AR/VR, or similar domains.
- Visa sponsorship
- For US-based roles, the company may not be able to employ candidates whose work authorization relates to certain U.S. visa categories, or support future H-1B sponsorship at this time.
About the job
Builds and scales 3D engine systems for avatar and environment geometry so high-fidelity Roblox experiences perform well across devices, especially mobile.
What you'll do
- Design and ship geometry systems, including mesh processing, level of detail, transcoding, streaming, runtime loading, and performance improvements.
- Profile and improve engine performance across devices, and collaborate with internal teams and external developers.
- Lead projects end-to-end, mentor engineers, and promote technical quality and code health.
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 such as mobile or console.
- Track record of end-to-end ownership in ambiguous work, 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