Senior Backend Engineer; Ruby), AI Catalog: External Agents

Remote, United Kingdom

Git Lab is the intelligent orchestration platform for Dev Sec Ops . Git Lab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100
* trust Git Lab to ship better, more secure software faster.

The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. Git Lab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our valuesand continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems.

Co-create the future with us as we build technology that transforms how the world develops software.

* Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of Git Lab.

As a Senior Backend Engineer on Git Lab’s External Agents team, you’ll design and build integrations that bring Git Lab agents into tools such as Slack and connect external solutions such as Claude Code or Codex with Git Lab. You’ll take end-to-end ownership of complex features, help shape architectural patterns for how Git Lab exposes its AI functionality, and collaborate with engineers across the Agent Foundations stage and adjacent AI engineering teams.

This is a high-visibility area at the intersection of Git Lab’s core platform and AI strategy.

• Develop, ship, and maintain secure, well-tested, and performant external agent integrations across the Git Lab monolith backend.
• Collaborate with Product Management, user experience, frontend, backend, and AI specialists to refine requirements and deliver high-quality improvements iteratively.
• Design, implement, and review GraphQL and REST application programming interfaces (APIs) and related backend logic, with clear contracts for frontend clients.
• Improve and extend automated testing, including RSpec and other frameworks, to strengthen quality, reliability, and developer feedback loops.
• Share standards, patterns, and lessons with other engineers to support responsible AI integration and evidence-based engineering across the team.
• Participate in Tier 2 on-call rotations , troubleshoot production issues, contribute to root cause analysis, and improve observability and resiliency.
• Assess the competitive landscape and help Git Lab build strong AI integrations as agentic technology evolves.

• Experience building and maintaining production applications with Ruby on Rails, including background jobs, APIs, and data models.
• Comfort working across the stack in a mature codebase.
• Proficiency in designing or extending REST or GraphQL APIs with attention to scalability, maintainability, and backward compatibility.
• Practical experience designing and shipping AI-powered backend features or integrations.
• Strong SQL skills and familiarity with relational databases such as PostgreSQL, including efficient queries and data modeling.
• Experience identifying and addressing performance bottlenecks at the application and, where relevant, infrastructure layers.
• Openness to learning, collaborating in an asynchronous, distributed team, and applying transferable skills from related technologies or domains; familiarity with Python backends or Vue frontends is a plus.

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