Backend Engineer (Ruby, AI Engineering: Agent Observability)

Role Overview

Backend Engineer on GitLab’s Agent Observability team. You’ll build and maintain backend features, design API integrations, establish architectural patterns, and collaborate across product, UX, frontend/backend, and AI specialists.

Key Missions

• Develop complex features and define architectural patterns for interactions with AI agents.
• Collaborate with Product, UX, Frontend/Backend, and AI specialists to refine requirements and deliver high-quality product improvements.
• Participate in on-call (level 2), help resolve production issues, contribute to root-cause analysis, and improve observability.

Responsibilities

• Develop, ship, and maintain backend features.
• Design and implement APIs.
• Improve automated testing.
• Contribute to production support via on-call rotation.

Requirements

• Comfortable working across the stack in a mature codebase.
• Strong day-to-day experience with AI tooling.
• Experience building production applications with Ruby on Rails, including:
  • background jobs
  • APIs
  • data models
• Practical SQL skills and familiarity with relational databases such as PostgreSQL (efficient queries, data modeling).
• Proficiency designing or extending REST and/or GraphQL APIs with focus on scalability, maintainability, and backward compatibility.
• Clear written and verbal communication (technical proposals and documentation) in a remote, async-first, cross-functional environment.

Nice to Have

• Familiarity with Python backends and/or Vue frontends.
• Experience designing and shipping AI-powered backend features and integrations.