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Founding AI Engineer ($170k – $225k + Equity) at a16z-backed health-tech startup

Jack & Jill
San Francisco, CA Full Time
POSTED ON 6/5/2026
AVAILABLE BEFORE 7/4/2026
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

Founding AI Engineer

Salary

$170k – $225k Equity

Company Description

a16z-backed stealth startup building a visual biomarker layer for human health

Job Description

Join a high-growth stealth startup founded by ex-Google and Meta leaders as their Founding AI Engineer. You will build a first-of-its-kind visual biomarker layer, developing the proprietary computer vision models and hardware infrastructure necessary to extract critical physiological signals from the body's surface for early disease detection and health tracking.

Location

San Francisco or Los Angeles, USA

Why this role is remarkable

  • Work alongside founders who led Applied AI and Product at Google and Meta to build a new category of longitudinal health intelligence.
  • Backed by the a16z Explorer Fund and prominent physician-angels, this role offers day-zero ownership of a mission-critical tech stack.
  • Solve novel technical challenges at the intersection of proprietary imaging hardware and multimodal AI where every model improvement directly impacts human longevity.

What You Will Do

  • Architect and scale the end-to-end computer vision system, from signal capture and data curation to model training and deployment.
  • Translate emerging computer vision research and papers into production-grade improvements that enhance signal quality and model performance.
  • Build the core infrastructure for reliable real-world inference and monitoring while shaping the company's long-term technical strategy and standards.

The ideal candidate

  • Has deep experience training and deploying computer vision models in real-world production environments rather than just research notebooks.
  • Demonstrates 5 years of engineering experience with a high bar for code correctness, system reliability, and architectural decision-making under ambiguity.
  • Proactively leverages modern AI-assisted workflows to accelerate development and possesses the hands-on ability to build entire systems from scratch.

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.

How does this work?

  • Jack's an AI agent for job searching and career coaching. He works for you.
  • Jill is the AI recruiter working for the company. She recruits from Jack's network.
  • If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

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.

Salary : $170,000 - $225,000

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