GitLab is hiring a Senior Backend Engineer to join the Plan: Knowledge group. You will help shape how teams plan, document, and share knowledge within GitLab by building and improving core backend systems and designing innovative, AI-powered capabilities.
What You'll Do
- 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.
What We're Looking For
- 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.
- 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.
Nice to Have
- Familiarity with Model Context Protocol (MCP) or similar patterns for connecting APIs to external tools and platforms.
Technical Stack
- Ruby on Rails
- PostgreSQL
- Redis
- GraphQL
- AI agents
- Model Context Protocol (MCP)
Team & Environment
You will join the Plan: Knowledge team of 6 engineers, which includes a Product Manager, Engineering Manager, Product Designer, and Technical Writer. You will report to the Engineering Manager.
Benefits & Compensation
- Benefits to support your health, finances, and well-being
- Flexible Paid Time Off
- Team Member Resource Groups
- Equity Compensation & Employee Stock Purchase Plan
- Growth and Development Fund
- Parental leave
- Home office support
Work Mode
This is a global position.
GitLab is proud to be an equal opportunity workplace and is an affirmative action employer. GitLab’s policies and practices relating to recruitment, employment, career development and advancement, promotion, and retirement are based solely on merit, regardless of race, color, religion, ancestry, sex (including pregnancy, lactation, sexual orientation, gender identity, or gender expression), national origin, age, citizenship, marital status, mental or physical disability, genetic information (including family medical history), discharge status from the military, protected veteran status, or any other basis protected by law.
