EMR Platform Migration from Legacy Java to Azure
Challenge
Aging Java monolith EMR (3,800+ source files, 500+ database entities, 23 third-party integrations) was unmaintainable and couldn’t scale. A proof-of-concept validated the new product direction, but needed a production-grade architecture to replace it. No development team. No CI/CD. HIPAA compliance gaps.
Approach
Migrated the validated POC to a production Azure architecture — Azure Functions with TypeScript and a React frontend. Built and led an offshore development team. Rebuilt 50+ serverless functions and React components. Replaced legacy iframe-based lab and prescription ordering with direct API integrations. Built new payment processing integrations. Established HL7/FHIR integration patterns for interoperability. Stood up HIPAA-compliant cloud infrastructure with proper audit logging. Implemented CI/CD pipelines.
Result
Fully modernized EMR platform running on Azure with automated deployments, HL7/FHIR integrations, and a scalable architecture the team could maintain independently. Replaced a legacy Java monolith that had been in service for nearly two decades.
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