Staff Software Engineer, Platform

R1 RCM is hiring a Staff Software Engineer to lead the architecture and hands-on delivery of Phare Fiber, an integration layer for sharing data and state across Phare OS applications. The role will establish reusable platform capabilities and technical standards, ship an initial production use case, and guide technical direction across the Application Platform portfolio.

Responsibilities:

• Lead the technical architecture for Phare Fiber, defining identity and join-key contracts, event and API contracts, schema evolution, delivery patterns and guarantees, cross-cloud connectivity, and tenant and PHI boundaries
• Write production code and ship the first use case end to end with a measurable outcome, then build the client libraries, onboarding patterns, and contract-review processes that make the platform reusable across application teams
• Lead design reviews across the Application Platform portfolio and establish engineering standards for testing, API design, backward compatibility, and operational readiness
• Partner with product and engineering leaders across Phare OS applications, Data Platform, Infrastructure, and Security to set technical direction and prioritize work around measurable outcomes
• Own what you build in production through SLOs, observability, on-call, and incident response while mentoring engineers across the team

Requirements:

• 10+ years of experience building and operating production distributed systems, including 5+ years setting technical direction across multiple teams or a significant platform
• Expertise building and operating production event-driven systems using Apache Kafka or an equivalent platform
• Experience integrating heterogeneous systems through backward-compatible APIs and event contracts
• Experience with event-driven data architectures using Spark, Databricks, or an equivalent lakehouse platform
• Staff-level technical leadership across teams while remaining hands-on with production systems