Senior Backend Engineer (Ruby on Rails), Plan: Knowledge

GitLab is the intelligent orchestration platform for DevSecOps, trusted by more than 50 million registered users and over 50% of the Fortune 100. The Plan: Knowledge group owns core knowledge management experiences in GitLab, including Wiki, Pages, Markdown, and Text Editors, and is expanding with AI-powered capabilities such as the planner agent and MCP-based integrations. The team includes 6 engineers and collaborates asynchronously across regions with the broader Plan stage to solve backend scale, editing experience, and AI integration challenges.

• Strong experience building and maintaining backend applications with Ruby on Rails, including core components such as ActiveRecord and Redis.
• Experience designing and supporting GraphQL APIs with attention to usability, maintainability, and performance.
• Knowledge of PostgreSQL query design, optimization, and scaling in high-traffic production systems.
• Experience building or integrating AI agents, intelligent workflows, or related platform capabilities.
• Familiarity with Model Context Protocol (MCP) or similar patterns for connecting APIs to external tools and platforms.
• Ability to investigate production issues, debug complex systems, and improve reliability over time.
• Experience leading technical decisions, mentoring engineers, and contributing to engineering standards across a team.
• Clear communication and cross-functional collaboration skills, with openness to candidates who bring transferable experience from adjacent backend or platform work.

• Lead backend architecture for Wiki, Pages, Markdown, and text editor capabilities used across GitLab.
• Design and build AI agents that support planning and knowledge management workflows.
• Architect MCP integrations that connect GitLab GraphQL APIs with external AI platforms and tools.
• Drive improvements in reliability and performance across application code, PostgreSQL queries, Redis usage, and background jobs.
• Develop and evolve GraphQL APIs that are clear for frontend engineers and support scalable product experiences.
• Collaborate with frontend engineers, Product, UX, and Security to break down complex work into shippable iterations.
• Mentor engineers through code review, technical discussions, and shared backend best practices.
• Support incident response and production debugging, then turn learnings into lasting system improvements.

GitLab hires new team members in countries around the world. All roles are remote; some roles may carry specific location-based eligibility requirements. GitLab is an equal opportunity workplace and affirmative action employer, with policies based solely on merit regardless of protected characteristics. Accommodation is available during the recruiting process for disabilities or special needs.