Backend; Python Engineer, AI Engineering:Duo Chat

Staff Backend (Python) Engineer, AI Engineering:
Duo Chat

Remote, Americas;
Remote, Canada;
Remote, Ireland;
Remote, Netherlands;
Remote, United Kingdom

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As a Staff Backend Engineer (Python) on the Duo Chat team in AI Engineering, you'll lead the backend architecture that powers Git Lab Duo Chat across the Git Lab Dev Sec Ops  platform. You'll solve hard problems in building reliable, secure, and scalable AI-powered chat workflows so customers can plan, write, review, and secure code faster, with confidence. This is a hands‑on technical leadership role where you'll set direction for how we integrate and evolve large language model providers (including Google Vertex AI) across Ruby on Rails and Python services, raise the bar on observability and testing, and guide the team through ambiguous, high‑impact technical decisions.

Over your first year, you'll be expected to drive key architectural choices, reduce technical debt that slows iteration, and help the team ship durable improvements to response quality, reliability, and maintainability.

• Integrate new generative AI models and providers into Git Lab Duo Chat to expand capabilities and improve response quality
• Improve debugging, observability, and test coverage for AI-powered chat workflows to increase reliability at scale

• Define the technical architecture and technical roadmap for the Duo Chat group, aligning backend execution with product direction and engineering priorities
• Solve the highest-scope and most ambiguous backend problems, delivering secure, well‑tested, performant solutions with minimal guidance
• Integrate and extend generative AI capabilities in Git Lab Duo Chat, including large language models (LLMs) and providers such as Google Vertex AI
• Develop, ship, and maintain backend features across Python and Ruby on Rails services that power Duo Chat experiences across the Git Lab platform
• Design, implement, and review Graph
  
  QL application programming interface (API) contracts and supporting backend logic to ensure reliability, scalability, and clear frontend integrations
• Improve observability, debugging workflows, and incident readiness by strengthening logging, tracing, and production troubleshooting practices
• Drive code quality and long‑term maintainability by setting internal standards, leading code reviews, and identifying and reducing technical debt
• Mentor engineers across the team and participate in Tier 2 on‑call rotations, contributing to root cause analysis and follow‑up improvements to resiliency and testing (including RSpec)

• Production experience building and operating backend services in Python, including background jobs, APIs, and data models
• Ability to define and evolve technical architecture by weighing trade‑offs, selecting patterns and…