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# Backend Engineer

- **Company:** GitLab
- **Location:** Spain
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Automation of Tests, Relational Databases, Database Queries, Python (Programming Language), PostgreSQL, Query Optimization, Ruby on Rails, Systems Integration, Rspec, Backend, Gitlab, Vue.js, Graphql, Front End Software Development, Restful APIs
- **Published:** July 8, 2026
- **Apply:** https://es.trabajo.org/oferta-5354-2cef0f2a19e1beea25b328dc3d9d7405

## About the Role

troubleshoot production issues, contribute to root cause analysis, and enhance observability and resiliency. - Bring a sharp eye to the competitive landscape, helping us understand what it takes to keep GitLab's MCP server best-in-class in an increasingly agentic world. What you'll bring - Experience building and maintaining production applications with Ruby on Rails, including work with background jobs, APIs, and data models. - Comfortable working across the stack in a mature codebase. Familiarity with Python backends and/or Vue frontends is a plus. - Proficiency in designing or extending REST and/or GraphQL APIs with attention to scalability, maintainability, and backward compatibility. - Practical experience designing and shipping AI-powered backend features and integrations, including sound judgment about large language model limitations and responsible use in production. - Strong SQL skills and familiarity with relational databases such as PostgreSQL, including writing
efficient queries and understanding data modeling. - Ability to identify and address performance bottlenecks at the application and, where relevant, infrastructure layers. - Openness to learning, collaborating in an async-first, distributed team, and applying transferable skills from related technologies or domains. About the team Agent Tools is a new functional team within the Agent Execution group. The team itself will initially consist of three engineers across AMER and EMEA timezones. The whole Agent Execution group consists of 8+ engineers. Beyond the Agent Tools team, Agent Execution consists of further teams focussed on agent observability and executing agents on GitLab's runners. We're partnering with teams both within the AI space as well as all over GitLab to ensure that the Duo Agent Platform can become the backbone of many AI features at GitLab. How GitLab Supports Full-Time Employees - Flexible Paid Time Off - Team Member Resource Groups - Equity

## Description

adjacent teams within AI engineering. This is a high-visibility area of the product at the intersection of GitLab's core platform and its AI strategy. What you'll do - Develop, ship, and maintain features and improvements for Agentic Tools across the GitLab monolith backend in a secure, well-tested, and performant way. - Collaborate with Product Management, UX, frontend, backend, and AI specialists to refine requirements and deliver high-quality, iterative product enhancements. - Design, implement, and review GraphQL, REST APIs and related backend logic, ensuring reliability, scalability, and clear contracts with frontend clients. - Improve and extend automated testing, including RSpec and other frameworks, to strengthen quality, reliability, and developer feedback loops. - Share standards, patterns, and learnings with other engineers, raising the bar for responsible AI integration and evidence-driven engineering across the team. - Participate in Tier 2 on-call rotations to


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