Founding AI Engineer at River Founding AI Engineer at River in Weehawken, New Jersey Posted in 12 days ago.

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full-time About River River builds AI voice agents that sell for B2B SaaS companies. Our agent qualifies prospects, handles hard questions, and demos the product live in a browser while it talks. We just closed our pre-seed (backed by the founders of Ramp, Kalshi, and JumpCloud) and have paying customers. The role You'll build River's agent: how it listens, reasons, calls tools, drives a browser, and handles a buyer who goes off script. You'll join a small founding team and work directly with the founders. What we look for 3+ years shipping software, with senior or founding-level ownership of a product in production You've shipped agents real people relied on, and can walk us through what broke You've built agent capabilities beyond off-the-shelf tools: tool use, memory, planning You find the problem, propose the fix, and ship it Nice to have: voice or real-time (WebRTC, streaming), browser automation, a startup of your own. The details In person in New York, relocation supported $160K to $220K base, around 1% equity US work authorization required; no visa sponsorship To stand out: send us the agent you're proudest of and the hardest thing that broke. A link beats a cover letter.