Founding Engineer

About the Role

Join an early-stage AI/ML developer tooling team as its first full-time engineer outside the founding group. You will build systems that detect failures in AI agent conversations and generate verified fixes, helping customers ship more reliable software.

What You'll Do

• Build end-to-end product capabilities, from data ingestion and failure detection to patch generation and verification.
• Design reproduction logic, guardrails, and checks that help prevent unsafe or incorrect changes from reaching customer repositories.
• Turn customer problems into shipped solutions, working directly with customers to understand traces, production failures, and requirements.
• Make architectural decisions across schemas, service boundaries, and system tradeoffs.
• Establish engineering practices for testing, observability, on-call, and releases.
• Work across data pipelines, detection systems, and user-facing review experiences as product needs evolve.

What We're Looking For

• At least 3 years of experience shipping production software, with a track record of contributing beyond your core specialty.
• Strong full-stack TypeScript skills, including experience building user-facing products and core services.
• Experience building and operating AI agents in production, with an understanding of agent failure modes and debugging.
• Experience designing and optimizing high-volume data pipelines with attention to cost, observability, monitoring, and production debugging.
• Ability to independently take loosely defined customer problems through architectural decisions and delivery.
• Comfort working directly with customers and in an early-stage team with broad ownership.

Compensation & Benefits

The annual salary range is $150,000 to $200,000. Visa sponsorship is not available.

Location

On-site in San Francisco, California. The role requires working from the office six days per week.