Petra Labs

Software Engineer at Petra Labs (New York, NY)

Petra Labs· New York, NY·

Role details

Work type
Onsite
Employment
Full-Time

Job description

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

Why work at Petra Labs

  • Founding team opportunity: As a 2025 startup, new hires get to shape the product, culture, and strategy from an early stage.
  • High-impact work: Directly building the infrastructure and playbook for a new category (AEO) that is rapidly growing in importance.
  • Culture & Perks:
    • Hybrid/In-Office: Described as a "Hybrid Workspace" with a strong in-office presence in New York City (likely 3-4 days/week).
    • Equity: Roles list "Equity" as a benefit, standard for early-stage startups.
    • Team: Small, high-caliber team (10 people) with backgrounds from top-tier firms (McKinsey, AWS, Goldman Sachs).
    • Role variety: Engineers and operators will have broad ownership across the stack and business, not siloed.
  • Notable for job seekers: The company is actively hiring its first few engineers and operators, offering significant upside and influence.

Application questions