Senior Real-Time 3D Engine Engineer

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

Benefits offered by this job

Equity compensation

Job summary

Roblox in San Mateo is seeking an experienced engineer to design and ship high-performance 3D engine systems for avatars and environments. You will collaborate with Rendering, Avatar, Studio teams and outside developers to build scalable features for millions of players, with a focus on mobile performance and large-scale worlds.

The role requires deep C++ expertise and hands-on 3D experience, ownership in ambiguity, and strong collaboration as you drive end-to-end projects from concept to

Qualifications

• 8+ years of professional experience shipping high-performance systems in game engines, real-time simulation, robotics, AR/VR, or similar.
• Deep proficiency in C++, with focus on clean, efficient, maintainable code in large codebases.
• Hands-on experience with production-grade 3D rendering, mesh/geometry processing, or GPU client performance.
• Ability to diagnose CPU/GPU tradeoffs for mobile/console platforms.
• Ownership in ambiguity: drive work end-to-end from idea to production.
• Strong collaboration and communication across Engine/Rendering/Avatar/Studio teams.

Responsibilities

• Design and ship 3D engine systems for avatar and environment geometry.
• Partner with Rendering, Avatar, Studio and external developers to ensure features are usable for experiences.
• Profile and improve engine performance across devices with emphasis on mobile.
• Mentor engineers and drive end-to-end projects, ensuring high technical quality and code health.

Skills

C++ proficiency

8+ years experience

3D systems experience

Real-time performance

Ownership in ambiguity

Cross-team collaboration

Job description

Roblox in San Mateo is seeking an experienced engineer to design and ship high-performance 3D engine systems for avatars and environments. You will collaborate with Rendering, Avatar, Studio teams and outside developers to build scalable features for millions of players, with a focus on mobile performance and large-scale worlds.

The role requires deep C++ expertise and hands-on 3D experience, ownership in ambiguity, and strong collaboration as you drive end-to-end projects from concept to