Senior Backend Engineer, Trusted Agentic Development

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Job Description

Senior Backend Engineer building trusted AI-agent validation platforms at GitLab, an intelligent DevSecOps orchestration company. Developing language-aware feedback systems for Rust, Ruby, and Go.

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 feedback mechanisms that catch the gap between passing tests and working software
Develop approaches for GitLab's primary stacks, starting with Rust, Ruby, and Go
Design mid-loop feedback enabling agents to self-correct toward working software
Build systems that deliver agent feedback
Collaborate with engineering teams to drive adoption and measure trust, validation quality, and usage
Set technical direction, review designs, and help teammates grow their technical judgment

Requirements:

Deep, current, hands-on experience building real software with artificial intelligence agents, ideally across more than one language
Clear understanding of why agent output can pass tests yet fail in production
Strong point of view on the validation gap and concrete ideas for closing it, backed by approaches you've built or tried
Technical range to design systems rather than tune a single framework
Judgment to know when a solution should be general or language-specific
Ability to prototype to learn and 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
Experience with Rust, Ruby, and Go approaches/stacks