Principal Software Engineer, CI and CD Foundation

Roblox•San Mateo, CA

1d•$345,040 - $399,420•Onsite

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. As a Principal Software Engineer on the CI and CD Foundation team, you will lead the charge in transforming legacy CI/CD infrastructure and tooling into an automated, self-healing, and observable platform that powers the development and delivery of Roblox’s game engine, Studio, and app products. This is a high-impact role where you will drive technical strategies of multi-repo builds, testing, and infrastructure, leverage cutting-edge technologies to modernize how we build software at scale in the age of AI. You will report to the Manager of this team, and having significant cross-functional impact.

Requirements

Extensive experience designing and maintaining large-scale, modern CI/CD pipelines (e.g., TeamCity, Jenkins, GitHub Actions, GitLab).
A builder at heart with a track record of solving complex problems at scale. You leverage out-of-the-box thinking, strong leadership, and hands-on experience with modern AI coding solutions (e.g., Claude Code, Codex).
Strong working knowledge of build infrastructure automation and container orchestration, including AWS, Docker, Kubernetes (K8S), or Nomad.
Mastery of at least one modern language (e.g., Python, Go, C++, or Java) with a focus on design best practices and deep code comprehension.
Proven track record applying observability and data pipeline technologies to drive solutions at scale.

Responsibilities

Define and execute the long-term vision for our CI/CD ecosystem, transforming legacy infrastructure into a high-velocity, automated, and self-healing platform.
Collaborate closely with Client Engineering leads to deeply understand their tech stacks (Game Engine, Studio, Apps), translating their workflows into scalable, high-performance tooling solutions.
Lead efforts to maximize build reliability and efficiency at scale, reducing latency and downtime to unlock 5x-10x productivity gains.
Spearhead the adoption of agentic AI and intelligent automation, turning manual, repetitive developer tasks into autonomous, self-service workflows.
Mentor senior engineers, drive architectural reviews, and foster a culture of engineering rigor and innovation across the CI/CD organization.