Software Engineer at Petual | CA, US | Rezi

Software Engineer at Petual

Software Engineer

Petual · CA, US

3 days ago

Software Engineer

Petual · CA, US

3 days ago
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About the Role

Petual is an AI-powered control tester for modern enterprises, ensuring financial, operational, and technology controls are effective and traceable. The core of this role involves building the harness and evaluation systems that make testing reliable across diverse customer methodologies and complex scenarios, with the ground truth being senior auditor judgment.

Responsibilities

  • Own the agent harness at the core of the product, including workflows, checkpoints, and evaluation for reliable long-horizon agent testing.
  • Design and own backend services and APIs for evidence processing, from ingestion to auditor-ready output.
  • Build integrations with customer systems such as cloud infrastructure, identity providers, ticketing systems, and ERPs.
  • Design data models and system architecture to support growth in customer base and control volume.
  • Write code and design systems prioritizing security and data integrity for sensitive customer evidence.
  • Partner with customers to develop and deliver key features.

Requirements

  • Experience building on LLMs and agentic systems, including harnesses, long-horizon agents, evals, or resilient workflows.
  • Experience building enterprise SaaS products handling sensitive customer data.
  • Comfort working across the full stack, with strong backend fundamentals (APIs, data modeling, distributed systems) and frontend fluency.
  • Experience with AWS, Kubernetes, and infrastructure as code.
  • Experience in fintech, audit, governance, risk, compliance, or other regulated environments.
  • Proven track record of high ownership at an early- or growth-stage startup, influencing product and process.

Skills

  • LLMs
  • Agentic systems
  • Backend development
  • APIs
  • Data modeling
  • Distributed systems
  • Frontend development
  • AWS
  • Kubernetes
  • Infrastructure as code

About the Company

  • Petual is the AI-powered control tester for the modern enterprise.
  • Our agents test whether a company's financial, operational, and technology controls actually work, and trace every conclusion to its source.
  • External auditors re-perform our work, so precision on sample 1 has to equal precision on sample 400, and an agent that can't support a conclusion has to say so rather than guess.
  • We're backed by Andreessen Horowitz; the team comes from Stripe, Retool, and Lyft; and public companies already run their SOX programs on Petual.