Self-Improving Ad Creative Engines. Backed by Y Combinator.
About the role
You'd be a core part of the founding team. That means owning product and engineering decisions , shipping new products and features, talking to users, and deciding what to do next. The market is constantly evolving and so are we. You should be comfortable trying lots of things with uncertain outcomes and failing fast.
What they're looking for
- Strong technical background. You can go deep anywhere in the stack and you're fast
- You've built and launched something real that people actually used. Company, side project, open source — we care that it shipped and that it got traction, not what it was attached to
- You know how to design and architect AI agents. You've built agentic systems, hit their failure modes, and have opinions about what works
- Strong at agentic engineering. Your own output is visibly agent-leveraged. This is how our whole company operates, so we especially value people who understand the intuitions behind agentic engineering well
- Strong product and design sense. You can think clearly about what to build and why / why not. Strong design sense / taste is also highly valued
- You want the 0 → 1. Early-stage operator energy: deep in the weeds, high tolerance for ambiguity, iterating fast toward PMF
More about this role
Note: This role is for someone who can combine engineering excellence with strong product thinking and taste. That’s why I’ve called it Founding Builder . The role is best for those who actually enjoy building products, not just building engineering systems.
Distribution is the hardest problem every company has. Not building the product — getting it in front of people, over and over, in a way that works. Today that means an army of humans making creative, testing it, reading the numbers, and doing it again next week. It doesn't scale, and it's the single biggest tax on every consumer brand in the world.
We think that changes. The billion-dollar companies of the next decade won't scale linearly with headcount — they'll be run by fleets of AI agents, and the org chart will look more like an architecture diagram than a hierarchy.
Gooseworks builds self-improving AI agents that run growth for consumer brands — ads, UGC, organic — end to end.
Very early - this is just a few months old, but seeing very strong pull:
- 200+ paying users
- 30,000+ ad creatives generated by our users in the last 2 months
We're a YC company based in San Francisco, and we run the company on agent harnesses...
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