# Software Engineer at Petual

- Company: Petual
- What the company does: Backed by a16z.
- Company website: https://www.petual.ai
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco
- Work setup: On-site
- Posted: 2026-08-24
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/petual/de4c2d25-471a-400b-90e7-c6ac7857799d
- Page: https://www.1752.vc/careers/jobs/petual-software-engineer/

## About the role

The interesting problem is not getting an agent to test a control once. It is knowing whether it was right across hundreds of controls, for customers whose methodologies all differ, where the ground truth is a senior auditor's judgment rather than a label in a dataset. Building the harness and the evaluation that make that tractable is the core of this role, and it would be yours to own.

## What they're looking for

- Experience building on LLMs and agentic systems: harnesses, long-horizon agents, evals, or resilient workflows that survive contact with messy real-world input
- Experience building enterprise SaaS products that handle sensitive customer data
- Comfort working across the stack: solid backend fundamentals (APIs, data modeling, distributed systems) plus enough frontend fluency to ship a feature end to end
- Experience with AWS, Kubernetes, and infrastructure as code
- Experience in fintech, audit, governance, risk, compliance, or another regulated environment
- A track record of high ownership at an early- or growth-stage startup, where you shaped not just the code but the product and the process around it

Tags: Engineering