You will join as a founding engineer to build a proactive AI mentor that understands users deeply through digital footprints. This role involves solving complex problems in psychological profiling, memory architecture, and adaptive interfaces. You will work directly with repeat founders in San Francisco to ship a generational product that pushes human growth.
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Founding Engineer at well-funded consumer AI startup
Are you tired of building basic chatbots? Join a high-caliber team of repeat founders in San Francisco to build a proactive AI mentor that actually understands humans. As a founding engineer at this well-funded startup, you will solve massive technical hurdles in long-term memory and agentic behavior while shipping a product designed to push people toward their goals. If you are a world-class builder who wants to create a generational consumer company from the ground up, this is the seat for you.
About this role
Role overview
About the company
About the company
Well-funded consumer AI startup
What you'll do
What you will do
- Architect a sophisticated memory system that uses digital footprints to build deep psychological profiles of users.
- Design and implement a morphing UI that personalizes the entire interface experience based on individual user needs and behaviors.
- Build and maintain robust evaluation frameworks to measure real-world behavior change and ensure the AI provides meaningful mentorship.
Who you are
Who this is a fit for
- A strong generalist engineer who has a proven track record of shipping production-ready systems and finishing complex side projects.
- Experience building with LLMs and agents, with a deep understanding of memory orchestration, tool use, and reliable AI behavior.
- A product-minded, autonomous builder who thrives in fast-paced environments and is excited to use AI tools to accelerate their own workflow.
Why this role
Why this role is remarkable
- Work directly with repeat founders who previously led AI agent teams at Google and successfully exited their first startup.
- Tackle unsolved technical challenges like long-term compounding AI memory and proactive agentic behavior beyond simple chatbots.
- Join a small, elite team with high ownership, offering significant equity and the chance to define a new category of consumer technology.
Jack & Jill
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.
Meet Jack
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.
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.