AI Engineer (Generalist) ($180K - $250K + 0.3% - 1% Equity) at BUILD, Inc.

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network The next step is to speak to Jack. Job Title: AI Engineer (Generalist) Salary: $180K – $250K + 0.3% – 1% Equity Company Description: BUILD, Inc. — Seed-stage vertical AI startup backed by Index Ventures, OpenAI, and Blackstone executives. Job Description: Join the team building the agentic AI stack for institutional real estate. You will design, build, and deploy production‑grade AI agents using Python and LangGraph to automate complex development workflows. This hands‑on role involves owning full‑stack features end‑to‑end and solving unsolved problems at the intersection of AI and the physical world. Location: San Francisco, USA Why this role is remarkable: Work at the frontier of agentic AI with backing from industry titans at OpenAI and Blackstone, plus 7‑figure revenue traction. Experience radical autonomy and high‑velocity shipping in a team led by founders who scaled 11x.ai through a Benchmark‑led Series A. Directly influence the physical world by automating trillion‑dollar real estate workflows, moving projects from concept to completion 90% faster. What you will do: Design and deploy production‑grade AI agents using Python and LangGraph to translate complex real estate workflows into automated software. Own the entire product lifecycle from initial prototype to production, collaborating directly with institutional customers and domain experts. Build and maintain scalable full‑stack features, ensuring reliability and high performance for long‑running agents and visual reasoning systems. The ideal candidate: Has 3-5 years of engineering experience at high‑growth AI or engineering‑centric startups like Scale AI, Ramp, or Harvey. Possesses proven experience building and shipping agentic or LLM‑based systems that solve real‑world user problems in production environments. Demonstrates strong full‑stack capabilities with a focus on Python and modern AI frameworks, combined with a relentless startup‑driven work ethic. Who are Jack & Jill? Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate. Next steps Visit our website. Click 'Talk to Jack'. Talk to Jack so he can understand your experience and ambitions. Jack will make sure Jill (the AI agent working for the company) considers you for this role. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction. If not, Jack will find you excellent alternatives. All for free. We never post fake jobs We never post fake jobs. This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free. #J-18808-Ljbffr Jack & Jill/External ATS