Senior Backend Engineer, Trusted Agentic Development

Stack

Responsibilities

• ▹Own the technical thesis for how GitLab validates software when an agent is the author and turn it into an architecture the team can build against
• ▹Prototype the hard parts: build early versions of feedback mechanisms that catch the gap between passing tests and working software, proving what works before the team scales it
• ▹Develop approaches for GitLab's primary stacks (Rust, Ruby, Go) under one shared definition of trusted, letting the technique differ by language
• ▹Design the mid-loop feedback an agent needs to self-correct toward working software and build the systems that deliver it
• ▹Collaborate with engineering teams to adopt these approaches, measure adoption, trust and validation quality, and feed the findings back into the platform
• ▹Set technical direction, review designs and help teammates grow their technical judgment

Requirements

• ▹Deep, current, hands-on experience building real software with AI agents, ideally across more than one language, and a clear understanding of why agent output can pass tests yet fail in production
• ▹A strong point of view on the validation gap and concrete ideas for closing it, backed by approaches you've built or tried
• ▹The technical range to design systems rather than tune a single framework, and the judgment to know when a solution should be general or language-specific
• ▹You prototype to learn, and you ship
• ▹Ability to influence engineers across an organization without formal authority, through working code and sound reasoning
• ▹Strong written communication in an all-remote, asynchronous environment
• ▹Alignment with GitLab's values, especially collaboration, iteration and transparency

Soft skills

What we offer

• ▹Base salary range in Poland: 272,000 - 408,000 PLN (range for EU residents)
• ▹Fully remote work
• ▹Flexible paid time off
• ▹Equity compensation and Employee Stock Purchase Plan
• ▹Growth and Development Fund
• ▹Parental leave
• ▹Team Member Resource Groups

About the company

GitLab is the intelligent orchestration platform for DevSecOps, trusted by more than 50 million registered users and more than half of the Fortune 100. The team works all-remote and asynchronously.