Software Engineer
Confirmed on the employer's own hiring board on Oct 2, 2026. First seen by Alion on Feb 21, 2026.
About Petra Labs
Petra Labs is building the attribution and experimentation layer for AI search. We believe the future of commerce will be shaped by AI-driven information retrieval, yet most companies lack the infrastructure to understand and capitalize on this emerging growth channel. Petra Labs uses large-scale simulations, agentic analysis, and deeply embedded integrations to turn AI search from a black box into a measurable growth channel teams can rigorously optimize and allocate spend against.
Raised $5M+ in funding from Tier-1 VCs. We work in our SoHo, New York office.
Culture
We hire a small number of extremely talented people and give them as much ownership and autonomy as possible
We are truth-seeking. Transparent, direct discourse is encouraged. We challenge existing beliefs in pursuit of always getting better
We work hard and are unapologetic about the level of effort required to build a generational company
What You’ll Do
Define and build product end-to-end. Deeply understand user needs to iterate on, deploy, and scale software, with extreme ownership
Operate at the frontier. We tackle ambiguous, unsolved problems in AI search that require running experiments to uncover novel insights
Design and build large-scale systems, data models, and infrastructure
You’ll Excel in This Role If You
Can quickly and effectively decompose large, ambiguous problems and systems
Have built real products before and are comfortable owning large technical surfaces
Have strong fundamentals in system design and databases, with good judgment around when to move fast versus build for scale
Process
1. Hiring Manager Screen
2. Technical Interview
3. On-Site Interview