Senior Real-Time 3D Engine Engineer (C++)

Roblox Corporation; San Mateo (CA); On-site; USD 243,000 - 295,000; Full time

Job summary

Roblox Corporation in San Mateo, California is seeking an experienced engineer to help scale our geometry and rendering systems for avatars and environments. You will design and ship 3D engine features, ensuring they run smoothly across mobile and desktop while supporting millions of developers building immersive experiences.

The role emphasizes cross-team collaboration, mentoring, and owning projects end-to-end, with a focus on performance, memory, loading latency, and production readiness on

Qualifications

• 8+ years of professional experience in high-performance systems such as game engines, real-time simulation, or AR/VR.
• Deep proficiency in C++, writing clean, efficient, maintainable code in large codebases.
• Hands-on experience with production 3D rendering, mesh/geometry processing, LOD, or GPU workflows.

Responsibilities

• Design and ship 3D engine systems for avatar and environment geometry, including mesh processing, LOD, streaming, and runtime loading.
• Collaborate with Rendering, Avatar, Studio and external developers to ensure features are usable for creating amazing experiences.
• Profile and improve engine performance across devices, with emphasis on mobile and constrained platforms.
• Lead by example: drive projects end-to-end, mentor engineers, and uphold high technical quality and code health.

Skills

C++ proficiency

Real-time 3D systems

Engine development

Performance optimization

Ownership in ambiguity

Cross-team collaboration

Job description

Roblox Corporation in San Mateo, California is seeking an experienced engineer to help scale our geometry and rendering systems for avatars and environments. You will design and ship 3D engine features, ensuring they run smoothly across mobile and desktop while supporting millions of developers building immersive experiences.

The role emphasizes cross-team collaboration, mentoring, and owning projects end-to-end, with a focus on performance, memory, loading latency, and production readiness on