Introduction
Building a Microservices Healthcare System is a step-by-step, hands-on course that guides you through building a complete healthcare information system (HIS/EMR/LIS) following the Microservices architecture, using Quarkus (Java), PostgreSQL and Keycloak — compliant with the highest HIPAA security standards.
Unlike courses that only teach security theory, this series builds a practical system from scratch: architectural design → services building → decentralization → encryption → audit → deployment production. Every design decision complies with international medical security standards.
What will you build?
- Patient Service — Manage patient records with RLS + column encryption
- Clinical Service (EMR) — Electronic medical records, encounters, diagnosis
- Lab Service (LIS) — Tests, results, specimens
- Appointment Service — Make appointment, manage clinic
- API Gateway — Rate limiting, WAF, request validation
- Keycloak IAM — SSO, RBAC/ABAC, SMART on FHIR, MFA
- Audit & Monitoring — OpenTelemetry, ELK, pgAudit audit trail
- Kubernetes Deployment — mTLS, Zero Trust, production-ready
Technology Stack
| Technology | Version | Role |
|---|---|---|
| Quarkus | 3.x | Microservices framework (Java) |
| PostgreSQL | 16+ | Database — RLS, pgcrypto, pgAudit |
| Keycloak | 26.x | Identity & Access Management |
| Apache Kafka | 3.x | Event streaming, CDC |
| Istio | 1.x | Service mesh, mTLS |
| Docker + K8s | latest | Container orchestration |
| HashiCorp Vault | 1.x | Secrets & key management |
| OpenTelemetry | 1.x | Observability & distributed tracing |
Knowledge required
- Basic Java & Quarkus framework
- Basic PostgreSQL (SQL, schema design)
- Docker & container concepts
- REST API & microservices architecture
Who should learn?
- Backend Engineers build medical systems
- DevSecOps Engineers implement healthcare security
- Tech Leads architectural design for hospitals/medical facilities
- Full-stack Developers want to understand HIPAA standard security