Senior DevEx Engineer - AI Tooling & Cloud Platforms

Cargurus; Boston (MA); Hybrid; USD 140,000 - 176,000; Full time

Benefits offered by this job

Equity for all employees

Flexible hybrid model

Daily lunch and other perks

Job summary

CarGurus in Boston is seeking a Developer Experience Architect to help scale AI-enabled tooling across hundreds of engineers. You will own well-scoped features, collaborate with product managers, and mentor junior teammates while contributing to Claude Code, MCP, and AWS integrations.

You don't need to know cars to work here; join a people-first culture with a flexible hybrid model, equity, and a Total Rewards package including RSUs and career development opportunities.

Qualifications

• Five or more years of hands-on, full-stack software design and development, including at least three years of Python.
• Experience building web applications and working with cloud-native systems on AWS or similar cloud providers.
• Production level hands-on exposure to AI frameworks or APIs (e.g. FastAPI, Anthropic, LangChain/LangGraph, LangFuse, Evals).
• Experience using modern AI coding tools (assistants, agents, MCP) on real engineering work, or eagerness to adopt them.
• Experience with Java, client and server side JavaScript, and Terraform, is a plus.
• Working knowledge of authentication and identity standards (OAuth2/OIDC), or a strong appetite to learn them.
• Comfort writing tests, using observability tools, and owning well-scoped tasks end to end.
• Curious, collaborative, and eager to learn with strong communication skills.

Responsibilities

• Build and ship developer tooling, framework components, and reusable templates that raise engineering productivity and quality.
• Contribute to our agentic development ecosystem: Claude Code configuration, plugins and skills, MCP servers and homegrown autonomous agentic coding platform.
• Build and integrate AI agent workflows, leveraging LLM APIs and orchestration frameworks to automate and enhance user experiences.
• Participate in the evaluation of new AI development technologies, libraries, and techniques, sharing findings with the broader team.
• Support the rollout of AI tools and practices to engineering teams across CarGurus, including documentation and internal tooling.
• Apply our standards, guardrails, and best practices in your work, and help product teams adopt them.
• Continuously learn, experiment, and advocate for new technologies and methodologies that can move the business forward.
• Investigate, root cause, and improve system reliability and performance.

Skills

Python

Web apps

AWS

AI frameworks

JavaScript

Terraform

OAuth2/OIDC

Testing

Observability

Communication

Education

Bachelor's degree in Computer Science or equivalent

Tools

Claude Code

MCP servers

LangChain/LangGraph

LangFuse

FastAPI

Keycloak

Job description

CarGurus in Boston is seeking a Developer Experience Architect to help scale AI-enabled tooling across hundreds of engineers. You will own well-scoped features, collaborate with product managers, and mentor junior teammates while contributing to Claude Code, MCP, and AWS integrations.

You don't need to know cars to work here; join a people-first culture with a flexible hybrid model, equity, and a Total Rewards package including RSUs and career development opportunities.