Loading
A comprehensive HIPAA-compliant patient portal and provider dashboard serving over 500+ daily active users.
Rizmek required a highly secure, real-time healthcare management system connecting medical professionals with their patients seamlessly. The platform needed to support appointment scheduling, medical records access, secure messaging, and payment processing—all while maintaining strict HIPAA compliance and delivering a smooth user experience across both patient and provider interfaces. Our goal was to replace fragmented, legacy systems with a unified, modern platform that could scale to hundreds of daily active users.
Handling medical records requires strict access control, rigorous data validation, and absolute privacy. The existing architecture lacked role-based boundaries and struggled to process appointment scheduling without overlapping conflicts. Providers frequently reported double-booked time slots, and patients had no reliable way to view or request appointments. Data validation was inconsistent, creating risks of PHI exposure. The client needed a complete architectural overhaul that would address these issues while enabling future expansion to additional clinics and specialties.
Engineered a hardened RESTful backend with Express.js utilizing strict schema validations and JWT middleware. Developed dual React portals (Patient & Provider) governed by a unified Role-Based Access Control (RBAC) engine. Implemented Redis-based locking for appointment slots to eliminate double-booking, integrated Stripe for secure payment processing, and deployed PHI masking middleware to ensure no sensitive data leaked through API responses. The result was a production-ready platform serving 500+ daily active users with zero security incidents.
System architecture and data flow diagrams illustrating the underlying infrastructure and request lifecycle.
| Metric | Requirement | Target |
|---|---|---|
| P99 Latency | < 250ms | < 100ms |
| System Uptime | 99.9% | 99.99% |
| Query Payload | 10k ops/sec | 50k ops/sec |
In healthcare technology, moving fast and breaking things is not an option. A single authorization flaw could leak thousands of sensitive medical records.
The heaviest engineering lift was the appointment booking engine. Providers had overlapping schedules across different timezone clinics. We built an aggressive Node.js backend algorithm that locked time-slots instantaneously into Redis before committing to MongoDB, fully eliminating double-booking flaws.
The result was a totally locked down, lightning-fast dashboard where providers could finally trust the software driving their clinics.
Optimistic UI rendering is dangerous for healthcare scheduling; wait for the server lock confirmation.
Isolating Patient and Provider JWT tokens on the hardware level ensures impossible crossover.