Software Engineer, Engine Scalability

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 were 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. Were 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 youll 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.

Were looking for an outstanding engineering to join our Engine Scalability team. The Engine Scalability team builds the systems that power both Avatars and Environments across Roblox. Our mission is to enable millions of developers to build large high-fidelity worlds and multiplayer experiences that still run smoothly on phones and low-end devices.

Were the team that lets Roblox experiences evolve from simple platformers into massively multiplayer open-world AAA-quality games. This is a CEO-level priority: how Roblox ages up from kids games to experiences everyone wants to play by making higher-fidelity avatars and environments performant at platform scale.

• Design and ship 3D engine systems for avatar and environment geometry including mesh processing level of detail transcoding streaming runtime loading and related performance systems.
• Partner closely with other teams (Rendering Avatar Studio) and external developers so that the features you build are directly usable to create amazing experiences.
• Profile and improve the performance of our game engine across a wide range of devices with particular attention to mobile.
• Drive projects end-to-end collaborate with other engineers and contribute to maintaining strong technical quality and code health on the team.

• Experience: 3 years of professional experience building and shipping performance-sensitive software. Experience in domains like game engines real-time simulation robotics AR/VR or similar is a plus.
• Knowledge: Youre proficient in C and write clean readable maintainable code.
• Ownership: You can take a well-scoped problem from design through implementation and rollout and you ask questions and gather context when requirements are unclear.
• Applied 3D Systems Experience: Demonstrated hands-on experience building production systems involving real-time 3D rendering mesh or geometry processing LOD animation/skinning spatial data 3D asset pipelines or GPU/client performance. Not required but a major plus.
• Ownership in Ambiguity: A track record of driving work end-to-end when the problem wasnt fully specified: defining the approach yourself seeing it through implementation rollout and production consequences; gathering more information when requirements didnt make sense.
• Collaboration and Communication: Ability to work effectively across teams (Engine Rendering Avatar Studio and developer-facing teams) and explain complex technical topics clearly to different audiences.