Healthcare / HIPAA Compliant (Node.js + PostgreSQL + Vault + React) overview

A HIPAA-compliant application stack for healthcare software: Node.js with Express or Fastify as the API layer with strict audit logging, PostgreSQL with column-level encryption for protected health information (PHI), HashiCorp Vault for secrets management and encryption-as-a-service, and React for the clinician-facing or patient-facing UI with role-based access controls. Every API request is logged with actor identity, resource accessed, and timestamp for the audit trail required by HIPAA. Vault provides transit encryption so the application never handles raw encryption keys. Database connections use TLS, and row-level security in PostgreSQL enforces tenant isolation for multi-provider deployments. This stack suits EHR integrations, telemedicine platforms, patient portals, and clinical data tools. The primary tradeoff is development velocity: HIPAA compliance adds mandatory access controls, encryption, audit logging, and breach notification procedures that increase both code complexity and operational overhead.