Software Engineer, Engine Scalability (C++)

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

Salary: $153,120–$196,750 USD per year, plus equity compensation and benefits.

Company

Roblox builds a platform and development tools for immersive 3D experiences created by a global community of developers and creators.

What you will do

• Design and ship 3D engine systems for avatar and environment geometry.
• Build mesh processing, level-of-detail, transcoding, streaming, runtime loading, and related performance systems.
• Profile and improve game-engine performance across a wide range of devices, especially mobile platforms.
• Partner with Rendering, Avatar, Studio, and external developer teams to make features production-ready.
• Drive projects from definition through implementation, rollout, and production impact while maintaining code quality.

Requirements

• 3+ years of professional experience building and shipping high-performance systems in game engines, real-time simulation, robotics, AR/VR, or similar domains.
• Deep proficiency in C++ and experience writing clean, efficient, maintainable code in large codebases.
• Experience analyzing CPU/GPU time, memory, loading latency, visual quality, and frame-time stability on constrained platforms such as mobile or console.
• Hands-on experience with production 3D systems, such as real-time rendering, mesh or geometry processing, LOD, animation and skinning, spatial data, asset pipelines, or GPU/client performance.
• Ability to define and drive ambiguous projects end-to-end, gather missing information, and manage implementation and production consequences.
• Ability to collaborate across engineering teams and explain complex technical topics clearly to different audiences.

Culture & Benefits

• Work on systems supporting large-scale multiplayer experiences and high-fidelity avatars and environments.
• Full-time employees are eligible for equity compensation and company benefits.
• Equal employment opportunity and reasonable accommodations are provided during the recruiting process.
• For US-based roles, future H-1B sponsorship may not be supported, and certain US visa categories may not be eligible.