Principal Software Engineer (Avatar Personalization)

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

Salary: $295,250–$345,040 USD annual base pay, plus potential equity and benefits.

Company

Roblox develops a game engine and platform for creating and experiencing 3D user-generated digital experiences.

What you will do

• Build avatar features and personalization systems in the Roblox game engine.
• Develop APIs that enable Roblox developers to create avatars from scratch within experiences.
• Improve avatar fidelity, uniqueness, customization, and usability across mobile, tablet, PC, and console platforms.
• Refactor existing code and establish architectural standards for reliability, performance, and test coverage.
• Provide technical leadership on major architectural projects and coordinate with multiple engineering teams.
• Implement systems using C++ and Lua.

Requirements

• 8+ years of professional experience with a consumer-facing game engine or game application.
• Proficiency in C++, 3D math, data structures, algorithms, and networking.
• Experience building character customization systems, editors, or content creation tools.
• Experience developing online console or mobile game titles.
• Experience with animation, rigid-body or cloth/hair physics, shading, or other game or film character systems.
• For US-based roles, certain US visa categories may not be supported, and future H-1B sponsorship may not be available.

Culture & Benefits

• Work on systems used by tens of millions of monthly players and developers.
• Full-time employees are eligible for equity compensation and company benefits.
• Collaborate across teams on large-scale technical challenges and shared digital experiences.
• Equal employment opportunities and reasonable recruiting accommodations are provided.