Senior 3D Engine Engineer: Geometry & Scalability

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

Benefits offered by this job

Equity compensation

Benefits package

Job summary

Roblox is seeking a senior engineer for the Geometry Scalability team to design and ship 3D engine systems for avatar and environment geometry, delivering high-fidelity experiences that run on mobile and low-end devices.

You will collaborate across Engine, Rendering, Avatar, Studio, and external developers, mentor peers, and own end-to-end projects from concept to production, with a strong focus on performance and code health.

Qualifications

• 8+ years of professional experience building high-performance systems.
• Strong C++ experience in large codebases.
• Hands-on experience with real-time 3D rendering and mesh/geometry processing.
• Ability to diagnose CPU/GPU tradeoffs on constrained platforms.
• Experience driving work end-to-end in ambiguous projects.
• Excellent collaboration and communication across teams.

Responsibilities

• Design and ship 3D engine systems for avatar and environment geometry.
• Partner with Rendering, Avatar, Studio and external developers to make features usable.
• Profile and improve engine performance across devices, especially mobile.
• Lead by example: mentor engineers and uphold high technical quality.

Skills

C++ proficiency

Real-time 3D systems

Performance optimization

Cross-team collaboration

Job description

Roblox is seeking a senior engineer for the Geometry Scalability team to design and ship 3D engine systems for avatar and environment geometry, delivering high-fidelity experiences that run on mobile and low-end devices.

You will collaborate across Engine, Rendering, Avatar, Studio, and external developers, mentor peers, and own end-to-end projects from concept to production, with a strong focus on performance and code health.