Founding Engineer

About the role

As a Founding Engineer at AutoSitu, you will work directly with the founders on difficult applied-AI and distributed-systems problems that sit at the intersection of vision, reasoning, regulation, and the physical world. You will help build systems that can reason across hundreds or thousands of pages of architectural, civil, structural, and engineering documentation—then produce reliable conclusions that expert users can verify.

Responsibilities

• Build the core intelligence behind AutoSitu’s autonomous review agents
• Design distributed workflows that launch and coordinate specialized agents across many checks and submissions in parallel
• Create multimodal systems that understand drawings, schedules, details, notes, tables, and cross-sheet references
• Develop context and retrieval systems grounded in project documents, local codes, technical standards, and precedent
• Build evaluation infrastructure for high-stakes outputs where accuracy, evidence, and judgment all matter
• Improve agent reliability through structured reasoning, retries, observability, human feedback, and failure analysis
• Own product features end to end—from system architecture and model behavior to UI, deployment, and customer feedback
• Work directly with architects, engineers, developers, contractors, and public-sector reviewers to understand how the product performs on real projects
• Made foundational decisions about our engineering architecture, product direction, and technical culture

Requirements

We are looking for someone who:

• Has built and shipped technically ambitious products
• Wants to work across AI systems, backend infrastructure, product, and frontend when necessary
• Understands that reliability, traceability, and evaluation matter more than impressive demos
• Thinks carefully about concurrency, state, retries, idempotency, rate limits, and failure modes
• Can turn ambiguous, real-world workflows into clear technical systems
• Wants substantial ownership and responsibility at an early-stage company
• Cares about improving how housing, infrastructure, and communities get built

Qualifications

• Experience in architecture, construction, permitting, or government is not required
• A willingness to learn the domain deeply is preferred

Skills

• TypeScript
• Distributed Systems

Benefits

AutoSitu is backed by Y Combinator (W26), a small, fast-moving team working to make development review faster, clearer, and more consistent—so more housing, infrastructure, and communities can get built.

Pay

$120K - $200K

Schedule

Full-time