Senior Software Engineer, UGC Validation

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.

The Team

The Avatar Team is at the heart of the Roblox experience. The Roblox Avatar defines the identity of every player and is a core pillar of the metaverse. Within this group, the Avatar Platform Core team ensures that these foundational avatar components are high-quality, performant, and reliable at scale. As our User-Generated Content (UGC) ecosystem rapidly expands, we face unique technical challenges in managing, processing, and validating millions of 3D assets to maintain platform integrity.

The Role

As a Senior Software Engineer for UGC Validation, you will spearhead engineering initiatives to programmatically process, evaluate, and enhance large-scale 3D datasets uploaded to the Roblox marketplace. This role is not about traditional QA or manual testing; rather, it is highly technical, focusing on applying deep knowledge of 3D graphics, geometry, rendering, and animation to build robust systems that elevate 3D asset quality.

You will leverage your expertise in rendering pipelines, rigging, and 3D data manipulation to architect pipelines that quantitatively enforce platform standards. By identifying complex topological anomalies, detecting sophisticated rendering exploits, and programmatically analyzing mesh and animation data, you'll ensure our marketplace remains safe, highly performant, and visually stunning for hundreds of millions of users.

You Will:

• Process Large-Scale 3D Datasets: Architect, scale, and optimize sophisticated data pipelines capable of analyzing and transforming massive volumes of user-generated 3D assets (meshes, textures, rigs, and animations) with high efficiency.
• Detect Artifacts and Exploits: Develop programmatic, graphics-driven solutions to identify geometry-based exploits, malicious topologies, rendering hacks, and visual artifacts before they can impact the platform.
• Elevate 3D Asset Quality: Create automated engineering solutions that evaluate and improve the structural and visual quality of incoming UGC assets, ensuring optimal rendering performance and avatar schema compliance across all supported devices.
• Apply 3D Graphics Expertise: Utilize deep knowledge of computational geometry, rendering principles, skinning, and animation to define and solve complex validation constraints.
• Collaborate Cross-Functionally: Serve as the core technical expert in geometric processing, working closely with machine learning, engine, and product teams to integrate highly precise asset processing techniques into the broader avatar ecosystem.

You Have:

• Education: A BS, MS, or PhD in Computer Science, Computer Graphics, or a related technical field (or equivalent work experience).
• Expert 3D Graphics & Math Foundation: Exceptional mastery of 3D math (linear algebra, computational geometry) and deep familiarity with 3D graphics concepts, including rendering pipelines, shading, and lighting.
• Geometric Processing Expertise: Strong hands-on experience manipulating, analyzing, and optimizing 3D data, including complex meshes, topology, UVs, and vertex structures.
• Animation & Rigging Knowledge: Solid understanding of 3D animation principles, rigging structures, skinning weights, and skeletal hierarchies.
• Software Engineering Excellence: Strong programming skills in C++, Luau, Python, or similar production languages, with a proven track record in system optimization, data pipelining, and architecting scalable software for massive datasets.

Nice-to-Haves:

• Hands-on experience developing or optimizing features for runtime game engines.
• Experience with automated 3D asset optimization (e.g., decimation, LOD generation) or procedural geometry.
• Familiarity with applying machine learning algorithms to 3D asset processing.

For roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below. The actual base pay is dependent upon a variety of job-related factors such as professional background, training, work experience, location, business needs and market demand. Therefore, in some circumstances, the actual salary could fall outside of this expected range. This pay range is subject to change and may be modified in the future. All full-time employees are also eligible for equity compensation and for benefits as described on this page.

Annual Salary Range$196,750—$243,290 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.