Applied AI Engineer

About Permit Flow

Permit Flow is redefining how America builds. Pre-construction remains one of the most broken and manual parts of the $1.6T construction industry, causing massive delays, wasted capital, and lost opportunity across the built world. Our AI workforce delivers unprecedented speed, accuracy, and visibility to pre-construction — accelerating housing development, enabling clean-energy projects, and driving economic growth in communities nationwide. To date, we’ve powered over $20B in real estate development, helping builders and contractors move faster, reduce risk, and scale with confidence.

We’re entering hypergrowth with clear product-market fit and a world-class team from top AI and construction companies. We’ve raised over $36.5M from Kleiner Perkins, Initialized Capital, Y Combinator, Felicis Ventures, and Altos Ventures, alongside backers from OpenAI, Google, Procore, Service Titan, Zillow, Plan Grid, and Uber. We are on a mission to modernize how the built world operates.

Our HQ is in New York City with a hybrid schedule (3 in-office days per week). We prefer NYC-based candidates or those open to relocation.

• Develop and deploy AI agents that automate permitting workflows end-to-end.
• Orchestrate multiple models and tools to create reliable, multi-step AI systems.
• Build the internal tools and infrastructure that power and monitor these agents.
• Design and implement backend and frontend services, APIs, and data pipelines, integrating AI functionality into user-facing features when needed.
• Contribute to system architecture and core platform design with the engineering team.
• Design and maintain a suite of evaluations and benchmarks to measure agent accuracy, reliability, and cost-effectiveness.
• Optimize inference pipelines and backend systems for speed, scalability, and cost.

• 3+ years in software or ML engineering post-BS/MS.
• Hands-on experience shipping production AI/ML systems or AI-powered products.
• Experience building multi-step ML systems, pipelines, or agentic workflows.
• Strong backend and API development skills, with some frontend experience.
• Track record of building reliable products with attention to quality and detail.
• Startup grit and comfort in fast-moving, evolving environments.

• Competitive salary and meaningful equity.
• 100% paid health, dental, and vision coverage.
• Company laptop and tools of your choice.
• Daily meals via Uber Eats and a fully stocked kitchen.
• Commuter benefits.
• Team events and offsites.
• Unlimited PTO.

$175,000 – $265,000 per year.

Mid-Senior level.

Full-time.

Engineering and Information Technology.