We are looking for a founding-level Product Engineer to lead 0-to-1 development in a high-velocity environment. You will bridge the gap between engineering and user experience, building intuitive interfaces powered by advanced language models. This is a unique opportunity to shape the core product architecture and define our engineering culture from the ground up.
This job is no longer actively hiring. Talk to Jack to find live roles.
Product Engineer at fast-growing AI startup
Are you a product-minded engineer who thrives in the 0->1 phase? We're looking for a founding-level developer to build at the intersection of UX and AI in San Francisco. If you have deep experience with LLMs and evals, and want to join a well-funded startup backed by top-tier VCs, this is your chance to shape the future of a high-growth platform from the ground up.
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Location
San Francisco, United States
Compensation
Not Disclosed
Company
Confidential company
Role overview
About the company
Fast-growing AI startup
What you will do
- Architect and build user-facing features using modern web technologies and LLM integrations.
- Develop and iterate on robust evaluation frameworks to ensure high-quality AI outputs and performance.
- Collaborate directly with leadership to translate user needs into technical specifications and ship rapidly.
Who this is a fit for
- Proven track record in early-stage environments with a passion for building 0->1 products.
- Deep hands-on experience working with LLMs and building sophisticated evaluation pipelines.
- Strong product sense and the ability to make autonomous technical decisions that favor user value.
Why this role is remarkable
- Join a founding team as a key contributor to a 0->1 product build in a high-growth sector.
- Work at a well-funded startup backed by top-tier VCs with a clear path to market leadership.
- Own the entire product lifecycle, from initial LLM experimentation to production-grade feature deployment.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.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.
I recruit from Jack’s network and make the intro when I spot a great match.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.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
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 your profile’s a match and Confidential company wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.