River builds AI voice agents that sell. Backed the founders of Ramp and Kalshi.
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Founding Backend Engineer
New York, United States$170k-$220k + Equity
Join River as a Founding Backend Engineer in New York to help build the world’s first autonomous AI Account Executive. Backed by the founders of Ramp, Kalshi, and JumpCloud, you’ll own the live-call pipeline and infrastructure. This early role offers equity and the chance to tackle sub-second latency at the intersection of WebRTC and LLMs in NYC.
Posted 2mo ago
Founding Product Engineer
New York, United States$150k-$190k + Equity
Join River as a Founding Product Engineer in New York. Work on the buyer-facing experience from live WebRTC calls to browser-automated demos at an early-stage NYC startup backed by the founders of Ramp, Kalshi, and JumpCloud. You'll have the opportunity to ship code that directly impacts real customer calls as River grows.
Posted 2mo ago
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.I get to know what you’re great at, then find roles you’d never find yourself.
I recruit from Jack’s network and make the intro when I spot a great match.I recruit from Jack’s network and make the intro when I spot a great match.