Senior Backend Engineer (Python), Agent Developer: Flow Components

Remote, United Kingdom

Remote

Senior

Full Time

remotepythonbackendgraphqlrestsqljavascriptvueaisenior

Requirements

•Experience building and maintaining production Python applications with LangChain and LangGraph, including background jobs, application programming interfaces, and data models.
•Experience designing and shipping artificial intelligence-powered backend features and integrations, with sound judgment about large language model limitations and responsible production use.
•Proficiency in designing or extending REST and GraphQL application programming interfaces with attention to scalability, maintainability, and backward compatibility.
•Strong SQL skills and familiarity with relational databases such as PostgreSQL, including efficient queries and data modeling.
•Comfort working across the stack in a mature codebase and addressing performance bottlenecks at the application and, when relevant, infrastructure layers.
•Familiarity with JavaScript and Vue frontend development, with an understanding of user experience principles.
•Clear written and verbal communication skills, including experience writing technical proposals and documentation and collaborating in a remote, asynchronous, cross-functional environment.
•Openness to learning and applying transferable skills from related technologies or domains.

•Develop, ship, and maintain secure, well-tested, and performant Flow Registry features across the Duo Workflow Service and the GitLab monolith backend.
•Collaborate with Product Management, User Experience, frontend, backend, and artificial intelligence specialists to refine requirements and deliver iterative product improvements.
•Design, implement, and review GraphQL and REST application programming interfaces, related backend logic, and clear contracts with frontend clients.
•Improve automated testing with RSpec and other frameworks to strengthen quality, reliability, and developer feedback loops.
•Share standards, patterns, and lessons with other engineers to support responsible artificial intelligence integration and evidence-driven engineering.
•Participate in Tier 2 on-call rotations, troubleshoot production issues, contribute to root cause analysis, and improve observability and resiliency.
•Monitor the competitive landscape and help keep GitLab's Flow Registry primitives and capabilities competitive within the agentic platform market.