Founding Engineer
Neptune, New York City
What you will do
- The product, end to end. Design and ship experiences that make life's biggest financial and legal decisions feel accessible and empowering. You own features from architecture through deployment.
- AI at the core. Build the conversational AI and LLM-powered workflows that are the heart of Neptune. Turn model outputs into experiences couples can trust with real money.
- The Neptune brain. Build the shared memory and context engine at the heart of the product, the system that remembers each couple's full financial and legal life and makes every next decision smarter.
You'll work directly with the founding team (former Google, Stripe, Palantir, Uber, Thirty Madison) and talk to real users every week, watching what you ship change how couples make their most consequential decisions. Work is organized around the problem it solves, not where it sits in the stack.