Roblox
Senior C++ Engineer, Real-time Engine
$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, 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 ships scalable 3D engine systems for avatar and environment geometry, keeping high-fidelity Roblox experiences performant across devices.
What you'll do
- Design and ship geometry systems, including mesh processing, level of detail, transcoding, streaming, and runtime loading.
- Collaborate with internal teams and external developers; profile and improve engine performance, especially on mobile.
- 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 maintainable code in large codebases.
- Hands-on experience building at least one production system involving real-time 3D rendering, geometry, LOD, animation/skinning, spatial data, asset pipelines, or GPU/client performance.
- Experience diagnosing CPU/GPU, memory, loading, visual-quality, and frame-time tradeoffs on constrained platforms.
- Track record of end-to-end ownership in ambiguous work and effective cross-team communication.
Pay
$243,290 — $295,250 USD (base salary)
Tools
C++
Model-written summary · the original posting is authoritative