Senior Software Engineer, Systems

Roblox•San Mateo, CA

1d•$196,750 - $243,290•Hybrid

About The Position

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. Portal, part of Roblox’s Engine Productivity team, builds productivity tools for the hundreds of engineers developing Roblox’s game engine, desktop clients, apps, and Roblox Studio. As a Senior Software Engineer, you will build the systems that bring AI agents into engine development workflows. On a small team with broad reach, you will help decide where AI can meaningfully improve engineering productivity and take solutions from early experiments to reliable tools engineers use every day.

Requirements

5+ years of software engineering experience working on projects from 0 to 1.
Experience owning substantial parts of a developer tool or system through design, launch, and ongoing operation.
Systems programming experience in C, C++, or Rust.
A bachelor’s degree in Computer Science, Computer Engineering, or a related technical field, or equivalent practical experience.

Nice To Haves

Experience with or interest in Web technologies such as JavaScript, TypeScript and/or React is a huge plus
Interest in AI-powered developer tools such as Claude Code, Codex, and Pi.
The ability to turn ambiguous developer needs into practical solutions, work independently, and learn unfamiliar tools and systems.

Responsibilities

Own improvements to developer workflows, from identifying problems with engineers to designing and shipping productivity tools and measuring their impact.
Build AI agent sandboxes and harnesses written in C and Rust, along with the integrations and context agents needed to work effectively in Roblox’s C++ game engine codebase.
Partner with technical leaders across Roblox’s Engine and Infrastructure groups to deliver reliable tools and improve the daily experience of engineering at Roblox.