Principal Software Engineer - Avatar Personalization

Roblox Corporation; San Mateo (CA); On-site; USD 295,000 - 345,000; Full time

Job summary

Roblox Corporation is seeking a Principal Software Engineer for Avatar Personalization. This role focuses on advancing avatar systems, APIs, and tooling within the Roblox engine, impacting tens of millions of players and creators.

You will tackle large architectural projects, provide technical leadership, and coordinate across teams to deliver scalable, high‑quality avatar features on mobile, tablet, PC, and console.

Qualifications

• 8+ years of professional experience working on a consumer-facing game engine and/or game application.
• Proficiency with C++, 3D math, data structures, algorithms, and networking.
• Experience working on character building and customization systems, editors, and content creation tools.
• Experience building online console or mobile game titles.
• Experience with game or film character systems such as animation, rigid-body or cloth/hair physics, or shading.

Responsibilities

• Implement groundbreaking features in Roblox game engine to build the best avatar system in the world.
• Build APIs for Roblox developers enabling in-experience creation of Roblox Avatars from scratch.
• Enhance avatar fidelity and uniqueness on Roblox.
• Use the Roblox game engine to build excellent vertical applications for multiple platforms (mobile, tablet, PC, and console).
• Refactor and improve our existing codebase, and establish architectural standards for system reliability, performance, and test coverage.
• Work with numerous teams to help build the world's best user generated gaming platform.

Skills

C++

3D math

Data structures

Algorithms

Networking

Character building and customization

Editors

Content creation tools

Online console or mobile titles

Animation

Physics - rigid body / cloth / hair /;

Tools

Lua

Job description

Principal Software Engineer - Avatar Personalization

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators.

At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there.

A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone.

As a Principal Software Engineer on the Avatar Personalization team, you will use the Roblox game engine to build features that push the boundaries of our avatar technology, and build creative systems that make Roblox avatars simple and delightful to use. You will tackle the biggest architectural projects, provide technical leadership, and coordinate with teams across Roblox to build systems used by tens of millions of monthly players and developers.

You are passionate about building outstanding systems and APIs in the Roblox game engine, enhancing avatar features, and enriching customization systems for Roblox players and developers. You'll work with Avatar technologies such as animation, clothing, hair, and shading. Experience in game or film development is especially translatable into this team and role.

You Will:

• Implement groundbreaking features in Roblox game engine to build the best avatar system in the world
• Build APIs for Roblox developers enabling in-experience creation of Roblox Avatars from scratch
• Enhance avatar fidelity and uniqueness on Roblox
• Use the Roblox game engine to build excellent vertical applications for multiple platforms (mobile, tablet, PC, and console)
• Refactor and improve our existing codebase, and establish architectural standards for system reliability, performance, and test coverage
• Work with numerous teams to help build the world's best user generated gaming platform
• Implement systems in a combination of C++ and Lua

You Have:

• 8+ years of professional experience working on a consumer-facing game engine and/or game application
• Proficiency with C++, 3D math, data structures, algorithms, and networking
• Experience working on character building and customization systems, editors, and content creation tools
• Experience building online console or mobile game titles
• Experience with game or film character systems such as animation, rigid-body or cloth/hair physics, or shading

Annual Salary Range

$295,250 — $345,040 USD

Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted).

Roblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Roblox also provides reasonable accommodations to candidates with qualifying disabilities or religious beliefs during the recruiting process.

For US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.