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# Senior Backend Engineer (Ruby), AI Engineering DAP Repository Flows

- **Company:** GitLab
- **Location:** Redruth, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Machine Learning, Ruby on Rails, Ruby, Large Language Models, Backend, Gitlab
- **Published:** August 9, 2026
- **Apply:** https://www.totaljobs.com/job/senior-engineer-ruby/gitlab-job107814975

## About the Role

* Strong, hands-on experience with Ruby and Ruby on Rails in production systems.
 * Experience integrating LLMs into products (product integration, not ML model training).
 * Experience building agentic systems: autonomous or semi-autonomous agents that take actions on a user's behalf.
 * A track record of designing and shipping features independently in a collaborative team.
 * Strong written communication and the ability to operate effectively in a distributed, async-first environment.

## Description

The DAP Repository Flows team owns two areas within GitLab's Duo Agent Platform (DAP). The first is DAP onboarding, helping customers quickly set up a project so they can start using the Duo Agent Platform with minimal friction. The second is repository and background flows: autonomous and scheduled agents that work on a customer's codebase on their behalf.

This work is central to how GitLab delivers AI-powered automation on repositories. As a Senior Software Engineer, you will own features end to end, from design through delivery, building agentic experiences on top of the Duo Agent Platform.

What you'll do in this role

 * Own the design and delivery of features end to end across DAP onboarding and repository/background flows.
 * Build autonomous and scheduled agents that operate on customer codebases, building on top of the Duo Agent Platform.
 * Improve the DAP onboarding experience so customers can get a project configured and productive quickly.
 * Collaborate with engineers across the DAP organization on shared interfaces and patterns.
 * Review designs and code, and contribute to the team's technical quality.
 * Contribute to a culture of autonomy, ownership, high context sharing, and async-first collaboration., The DAP Repository Flows team is part of GitLab's broader Duo Agent Platform organization, within the AI/R&D group. The team is small and distributed, with plans to grow. We value autonomy, ownership, and high context sharing, and we work async-first through GitLab issues and Slack.
Remote-Global

How GitLab Supports Full-Time Employees

 * 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


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