About Substrate Substrate (www.substrate.cc) is building the world’s first AI native BPO, starting with healthcare RCM. We’re focused on helping healthcare enterprises like physician groups, EMR providers, and BPOs accelerate AR, and get reimbursed quickly and cost effectively. We already touch over 500k healthcare claims each month. The Role We're looking for an exceptional Harness Engineer to help build the systems around our agents and AI products. You'll be instrumental in advancing AI systems that are already in production, and improving success rates for probabilistic products, and precision for deterministic ones. You’ll build systems that can understand complex healthcare contracts, read EDI companion guides, utilize tools for navigating highly sensitive healthcare infrastructure and banking/financial infrastructure, and make intelligent decisions about claims processing - all...