Senior Software Engineer, Geometry Systems (3D)

Location: San Mateo, California, United States; office-based roles are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday.

Salary: $243,290–$295,250 USD per year, plus potential equity compensation and benefits.

Company

Roblox builds tools and a platform for creating and operating 3D immersive digital experiences at large scale.

What you will do

• Design and ship 3D engine systems for avatar and environment geometry.
• Build mesh processing, level-of-detail, transcoding, streaming, and runtime loading systems.
• Partner with Engine, Rendering, Avatar, Studio, and developer-facing teams.
• Profile and improve game-engine performance across devices, especially mobile.
• Drive projects from definition through implementation, rollout, and production impact.
• Mentor engineers and raise standards for technical quality and code health.

Requirements

• 8+ years of professional experience building and shipping high-performance systems.
• Deep proficiency in C++ and experience working in large codebases.
• Hands-on experience with a production real-time 3D system involving rendering, mesh or geometry processing, level of detail, animation, spatial data, 3D asset pipelines, or GPU and client performance.
• Experience analyzing CPU/GPU time, memory, loading latency, visual quality, and frame-time stability on constrained platforms such as mobile or console.
• Ability to own ambiguous technical problems end to end and communicate complex topics across teams.
• For US-based roles, certain US visa categories may not be supported and future H-1B sponsorship may be unavailable.

Culture & Benefits

• Work on large-scale 3D experiences used by tens of millions of people.
• Collaborate with global developers, creators, and internal engineering teams.
• Full-time employees are eligible for equity compensation and benefits.
• Equal employment opportunities and reasonable accommodations are provided during the recruiting process.