Senior Software Engineer, Developer Experience Architecture

Who we are At CarGurus (NASDAQ: CARG), our mission is to give people the power to reach their destination. We started as a small team of developers determined to bring trust and transparency to car shopping. Since then, our history of innovation and go-to-market acceleration has driven industry-leading growth. In fact, we’re the largest and fastest-growing automotive marketplace, and we’ve been profitable for over 15 years. What we do The market is evolving, and we are too, moving the entire automotive journey online and guiding our customers through every step. That includes everything from the sale of an old car to the financing, purchase, and delivery of a new one. Today, tens of millions of consumers visit CarGurus.com each month, and ~30,000 dealerships use our products. But they're not the only ones who love CarGurus—our employees do, too. We have a people-first culture that fosters kindness, collaboration, and innovation, and empowers our Gurus with tools to fuel their career growth. Disrupting a trillion-dollar industry requires fresh and diverse perspectives. Come join us for the ride!Role overview The Developer Experience Architecture team at CarGurus builds the platforms, tooling, and standards that make hundreds of engineers faster, safer, and more productive. You will work on our highest-leverage initiatives: standardizing AI agentic development (Claude Code, our internal plugin marketplace, and MCP integrations), evolving our authentication and identity platform (Keycloak, OAuth2/OIDC), and improving the paved paths for service and job creation on AWS. These are complex, cross-cutting problems with global impact. You will own your projects and partner with engineers and product managers across the org. And no, you do not need to know about cars to work here. What you'll do Design and ship developer tooling, core frameworks, and reusable templates that raise engineering productivity and quality Advance our agentic development ecosystem: Claude Code configuration and governance, plugins and skills, and MCP servers Strengthen the Auth service and agent identity model using Keycloak, OAuth2, and OIDC Build and operate services with Java, Spring Boot, AWS, and Kubernetes Define standards, guardrails, and best practices, then drive adoption across product teams Continuously assess, root cause, and improve system reliability and performance What you'll bring Five or more years of hands-on, fullstack software design and development, including at least two years of Java. Experience with client and server side JavaScript, including React, Node, and Remix, is a plus Experience building performant, large-scale web applications and cloud-native systems on AWS or similar cloud providers Working knowledge of authentication and identity standards (OAuth2/OIDC), or a strong appetite to learn them Hands-on experience applying modern AI coding tools (assistants, agents, MCP) to real engineering work Comfort writing tests, using observability tools,...