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Confidential company, Engineering
Founding Engineer at well-funded consumer AI startup
- Location
- San Francisco, United States
- Compensation
- Not Disclosed
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.
What's the next step?
This role is no longer actively hiring, but Jack can still help you discover similar open roles that fit.
Role overview
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.
About the company
Well-funded consumer AI startup
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 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 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.
How Jack & Jill work together

What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI agent for hiring, 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.