We are looking for an AI Engineer (Core) with 5–10 years of experience to build the foundational infrastructure behind Build's agentic AI platform. You'll be a backend/infra-focused engineer who thrives on high ownership, sharp technical opinions, and the challenge of designing production-grade systems for high-stakes AI workflows. This is a rare opportunity to join a 4-person engineering team and shape the entire technical foundation of a vertical AI company working with some of the biggest names in institutional real estate.
What will you be doing?
Key Requirements
AI for the Built World: Build has created the agentic AI stack for institutional real estate development, automating complex development workflows 90% faster than humans to accelerate the world’s most important built projects - digital infrastructure, energy, industrial - from concept to completion.
AI Engineer, Product
Founding Deployed Engineer ($180K – $250K • 0.3% – 0.8% Equity) at BUILD, Inc.
AI Engineer (Generalist) ($180K – $250K • 0.3% – 1% Equity) at BUILD, Inc.
Head of Engineering ($225K–$325K + 0.75%–1.6% Equity) at BUILD, Inc. - Agentic AI for Real Estate
Salary
$180,000 - $250,000
Equity
0.3% - 0.8%
Location
San Francisco, CA
Total raised
$8.0M
Last stage
Seed
Investors
No applications, no recruiter spam. Just the intro.
A few questions to make sure this role is the right shape for you. Two minutes.
I write the intro, send it to the founder, and handle the back-and-forth.
If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.