Roblox is a global platform where millions of people gather together every day to imagine, create, and share experiences with each other in immersive, user-generated 3D worlds. Backed by Greylock, a16z and Index.
About the role
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.
What they're looking for
- Deep production experience in C#/.NET or Rust, with the ability and interest to work effectively across both ecosystems
- Experience building and evolving reusable libraries, SDKs, frameworks, or runtime infrastructure adopted by multiple teams
- Strong fundamentals in concurrency, asynchronous programming, memory management, networking, and distributed systems
- A track record of diagnosing complex production problems and delivering measurable performance or reliability improvements
- Experience designing stable APIs and managing compatibility, versioning, dependencies, and adoption across dependent systems
- Demonstrated technical leadership: framing ambiguous problems, explaining tradeoffs, aligning stakeholders, mentoring engineers, and driving cross-team execution
More about this role
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.
Core Services builds the foundational services and software infrastructure behind Roblox’s global platform. Our work includes the C#/.NET and Rust frameworks, shared libraries, and runtime integrations that engineers use to build and operate production services.
As a Principal Software Engineer on the Core Services team you will solve problems spanning distributed systems, concurrency, memory management, API design,...
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