Senior 3D Engine Engineer – Geometry & Performance

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

Job summary

Roblox Corporation is seeking a senior engineer to design and ship 3D engine systems for avatar and environment geometry. You will collaborate with Rendering, Avatar, Studio, and external developers to deliver high-fidelity experiences that run on phones and low-end devices.

The role requires real-time 3D experience, strong C++ skills, and a track record of owning projects end-to-end while mentoring peers and maintaining code quality.

Qualifications

• 8+ years building high-performance systems in game engines or similar.
• Deep C++ expertise with large codebases.
• Hands-on experience with real-time 3D rendering, mesh/LOD, or GPU pipelines.
• Real-time performance tuning for mobile/console environments.
• Proven ownership of end-to-end projects from concept to production.
• Strong cross-team collaboration and communication.

Responsibilities

• Design and ship 3D engine systems for avatar and environment geometry.
• Collaborate with Rendering, Avatar, Studio and external developers.
• Profile and optimize engine performance across devices, with focus on mobile.
• Mentor engineers and uphold high standards of code health and technical quality.

Skills

8+ yrs exp

C++ expert

3D systems

RT performance

Ownership

Team collaboration

Job description

Roblox Corporation is seeking a senior engineer to design and ship 3D engine systems for avatar and environment geometry. You will collaborate with Rendering, Avatar, Studio, and external developers to deliver high-fidelity experiences that run on phones and low-end devices.

The role requires real-time 3D experience, strong C++ skills, and a track record of owning projects end-to-end while mentoring peers and maintaining code quality.