Principal Software Engineer, CI and CD Foundation

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.

The CI and CD Foundation team is the backbone of our engineering velocity. Our mission is to engineer and deliver a CI/CD ecosystem that streamlines the integration and delivery of our core client codeincluding the Game Engine Studio and User Apps.

We are laser-focused on three goals: enhancing overall build reliability maximizing developer productivity and ensuring consistent software quality. Were building and improving pipelines and tools to transform SDLC in the age of AI-driven software development.

As a Principal Software Engineeron the CI/CD Foundation team you will serve as the chief technical strategist and architect responsible for transforming how Roblox builds tests and ships code at massive scale.

Our build and delivery ecosystem handles immense complexity: decades of C game engine code extensive Lua applications complex native platforms and a sprawling monorepo with massive growing test suites. You will lead the technical vision to modernize decouple and accelerate this ecosystemdriving radical improvements across our Local Dev Inner Loop (pre-commit/pre-push) CI (PR validation speculative execution merge queues) and CD (OTA updates and binary releases).

We need a visionary builder who deeply understands developer productivity engineering at scalesomeone who can architect advanced systems (like custom Submit Queues or intelligent Merge Trains) and harness modern agentic AI workflows to build an autonomous lightning-fast developer platform.

• Architect CI/CD Strategy: Set and execute the multi-year technical vision for Robloxs build test and release platforms. Overhaul legacy pipelines into an automated observable and resilient foundation capable of scaling with our rapidly growing engineering org.
• Master the Inner & Outer Loops: Dramatically reduce developer friction by modernizing the local inner loop (fast local feedback smart caching pre-commit optimization) and scaling the outer loop (distributed testing fast artifact promotion and automated OTA/binary deployments).
• Build Concurrency & Merge Solutions: Solve complex multi-repo merge and build bottlenecks by architecting high-throughput submission engines (e.g. modern Submit Queue systems) that handle high-velocity code insertion without breaking main branches.
• Pioneer Agentic AI & Automation: Lead the integration of modern agentic AI tools and intelligent automation to autonomously diagnose build failures optimize test suites auto-remediate flaky tests and eliminate repetitive developer chores.
• Partner Cross-Functionally: Collaborate directly with Client Engine Mobile and Infrastructure leads to understand their specialized stack requirements (C Lua Native Mobile) and translate them into unified world-class developer tooling.
• Set Technical Excellence: Drive architectural reviews establish technical standards and mentor senior and staff engineers across the Developer Platform organization.

• Domain Mastery (12 Years): You have a proven track record as a Principal/Staff engineer architecting and scaling enterprise-grade CI/CD infrastructure distributed build systems and developer platforms at hyper-scale.
• Deep Systems & Infrastructure Knowledge: You understand the mechanics of large-scale builds (C Mobile Monorepos) artifact dependency graphs distributed caching container orchestration (AWS Kubernetes Nomad Docker) and observability pipelines.
• Algorithmic & Distributed Systems Problem Solver: You have hands-on experience (or deep architectural familiarity) with advanced CI concepts like speculative build execution merge queues/submit queues distributed test execution and dynamic build graph generation.
• Strong Polyglot Engineer: Proficient in systems and tooling languages (such as C Go Python or Rust) with a history of writing high-performance platform tools.
• Pioneer in AI Tooling: You actively leverage and experiment with cutting-edge AI software engineering tools (e.g. Claude Code Codex agentic workflows) and know how to integrate AI to turn manual dev processes into self-healing autonomous platforms.
• Data & Observability Driven: You rely on build telemetry pipeline tracing and developer friction metrics to pinpoint bottlenecks and quantify developer velocity gains.