We are looking for a Member of Technical Staff with 1+ years of experience to join a tiny, high-ownership team building the next interface for AI — a personal AI assistant that lives in iMessage. You'll be a product-minded full-stack engineer who has shipped something real to users and thrives in ambiguity. Caddy is backed by Y Combinator and Matrix Partners, has hundreds of monthly active users after launching just a month ago, and is scaling fast. This is a true founding engineer opportunity where you'll set the tone for both the product and the engineering culture.
What will you be doing?
Building out Caddy's memory system — taking cutting-edge research on agent memory and retrieval and productizing it into something accessible for non-technical users
Owning large, ambiguous problems end-to-end: choosing the approach, building the system, shipping to users, and iterating based on feedback
Building integrations across consumer and work tools (email, Stripe, Oura Ring, Slack, Notion) to make Caddy truly proactive
Working on frontier AI problems including agent reliability, context retrieval, and personalization
Shipping fast in a 4-person team where everyone is a former founder and the pace is intense
Caddy is building the next interface for AI — a personal, proactive AI teammate that lives in iMessage and works on your behalf across the tools you use every day. Instead of requiring complex prompts or technical setup, Caddy learns how you work and acts autonomously, handling everything from drafting email responses to managing your calendar, Slack, Notion, and more.
Their mission is to make AI feel simple, natural, and useful in the flow of everyday work. While most AI products today still feel like tools for the technical 1%, Caddy is building software that's accessible to everyone — from startup founders to people in theater — without downloading an app or learning a new interface.
Culture
Caddy is a small, high-trust team where everyone has significant ownership, autonomy, and responsibility. All current team members are former founders. The culture is intense, fast-paced, and deeply ownership-driven with a strong emphasis on product craft, speed, and in-person collaboration.
The team works in person from their SoHo, New York office, typically six days a week. They're deeply bought into the same goal: building a product and company they're proud to share with their friends, families, and the world.
Caddy is backed by Y Combinator, Matrix Partners, and prominent angels. The founding team previously built Loom's AI and core product.
Salary
$120,000 - $180,000
Location
New York, United States
Experience
1+ years
Total raised
$500K
Last stage
Seed
Investors
No applications, no recruiter spam. Just the intro.
A few questions to make sure this role is the right shape for you. Two minutes.
I write the intro, send it to the founder, and handle the back-and-forth.
If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.