Available Jobs - May 2026

River is a client-first Bitcoin-only financial institution building the financial app people use every day to save in bitcoin and spend in dollars. They custody over 25,000 BTC, serve individuals and businesses across the U.S., and are profitable. They publis…

Given the latest quantum algorithmic advances by Google, Bitcoin is expected to be fully broken by 2029. In this position you will design post-quantum cryptography that goes beyond the BIP-360 stopgap to fully solve the quantum threat on Bitcoin and transitio…

River is a Bitcoin-first financial institution building consumer and business products to save in bitcoin and spend in dollars. The company custodies BTC, publishes proof of reserves, and is profitable. Engineering work includes real-time Bitcoin and USD paym…

River is a Bitcoin-only financial institution building a consumer financial app to save in bitcoin and spend in dollars. The company custodizes over 25,000 BTC, serves individuals and businesses across the U.S., is profitable, and publishes cryptographic proo…

Babylon Labs is building native use cases for Bitcoin, unlocking its broader economic potential through trustless Bitcoin staking with over $6B in native BTC TVL and a trustless Bitcoin vault that enables BTC to participate in DeFi across any chain. Hiring (R…

We’re a new venture inside IOHK building the future of Bitcoin DeFi. Our mission is to unlock Bitcoin's economic potential by building a secure, trust-minimized protocol that brings more utility to native BTC. We’re hiring for a small, mission-driven, and cry…