Software Engineer, Systems

Benefits

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About this role

Software Engineer, Systems San Francisco, United States Midstream is an AI-native financial operating system for health systems, founded by experienced entrepreneurs and backed by top-tier investors. We give finance, supply chain, and managed care teams real-time visibility into where margin is at risk, with a precise action plan for capturing it before it's gone. Purpose-built for healthcare's complexity, Midstream transforms structured, unstructured, and external data into instant, contract-aware insights that drive smarter decisions. Our AI agents unify spend and revenue operations across the full back-office, learning and adapting with every interaction and delivering always-on intelligence that no point solution or one-off engagement can match. We're compressing months to minutes and turning post-period hindsight into in-the-moment foresight. The tempo of healthcare finance is changing, and Midstream is leading it. The Opportunity This is a rare opportunity to join Midstream at a formative stage and help shape the technical foundation of the platform . You'll work at the intersection of product, systems, and cloud infrastructure, designing and building the distributed systems that allow a small team to move fast, safely, and with confidence as the company scales. You'll partner closely with engineers and leadership to understand where infrastructure creates friction today, and where it will quietly break tomorrow if left unaddressed. From multi-tenant architecture and security boundaries to developer workflows and observability, you'll turn ambiguity into durable systems that reduce operational overhead and compound engineering velocity. We're looking for a systems-minded software engineer who cares deeply about long-term maintainability and developer experience,

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