[{"@context":"https://schema.org","@type":"JobPosting","title":"Founding AI Engineer","description":"

Mason AI is on the frontier of agentic AI for the built world: we're the technical leaders at building AI that checks blueprints are buildable and safe.

We’re looking for a Founding AI/ML Engineer to help us scale what works for residential projects in California to all construction across the country.

You will go deep on the cutting edge of optimizing multimodal AI agents; you will hillclimb on computer vision evals; and you will run time-boxed experiments that are high-risk, high-reward. You will become a domain expert on the ADA, Wildland-Urban Interfaces, and other wonky parts of the building code. Your work will directly affect the built environment of California within the first month of joining.

You will have a massive impact on the product, the company's future, and the country's, as we accelerate American construction. Join us.

Who you are

Either a SWE passionate about growing as an ML/AI Engineer, or a ML Engineer who's fast at prototyping.
You can run experiments quickly and develop research taste.
You're mission-oriented and looking for your life's work. You care about America's ability to build.
You love ownership and don't mind ambiguity or unblocking yourself.
You have the curiosity of a policy wonk to digest building codes and architectural diagrams.

What you'll do

60+% of your time will be spent improving the accuracy of our multimodal agents that check blueprints for building code compliance. This can range from building autoresearch to improving our evals to running sweeps on new experimental features you build. Your research taste will direct this work.
Talk to users and dogfood the product weekly
Wear hats as needed on topics ","datePosted":"2026-03-19","employmentType":"FULL_TIME","hiringOrganization":{"@type":"Organization","name":"Mason","sameAs":"http://www.bymason.com"},"url":"https://jobs.gem.com/mason/am9icG9zdDrbO9dq8Uy4Y_wwmKVh217K","jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"San Francisco, United States"}},"baseSalary":{"@type":"MonetaryAmount","currency":"USD","value":{"@type":"QuantitativeValue","minValue":120000,"maxValue":200000,"unitText":"YEAR"}}}]

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