NexusHealth infrastructure
Designing a secure, high-load healthcare ecosystem with microservices, Zero Trust networking, and enterprise-grade cloud infrastructure.
Background & Challenges
NexusHealth set out to build a next-generation digital healthcare platform — combining patient tracking, telemedicine, and clinical data into a single ecosystem. However, the challenge was not just building features, but ensuring absolute data security, scalability, and stability under load.
The platform had to support multiple user roles — patients, clinicians, and administrators — each with different access levels and workflows, all interacting with sensitive medical data in real time. This introduced strict requirements for access control, data isolation, and auditability.
The challenge: Build a system that simultaneously processes medical data, real-time communication, and global payments — without compromising security.
The goal: Create a microservices architecture with complete data isolation, high availability, and horizontal scalability.
The risk: High infrastructure complexity, dependence on cloud networking, and the need for a Zero Trust model.
An architectural error could cost data loss or system downtime.
Custom cloud architecture for healthcare scale
- 10 independent backend services (IAM, Billing, Clinical Data, Notifications)
- 3 frontend applications for different roles (patients, doctors, admins)
- API Gateway as a single point of entry
- Docker-based infrastructure with host networking for productivity
Core architecture principles
Advanced infrastructure components
- Azure Front Door + WAF for global traffic
- Layer 7 protection against OWASP Top 10 threats
- Global edge routing with performance optimization
- NAT Gateway with static IP for integrations
- Secure IP whitelisting for payment and external APIs
- Controlled outbound traffic with fixed identity
- Azure Key Vault for secrets
- VNet Peering with MongoDB Atlas (no public access)
- Private connectivity via cloud backbone for low latency and security
- Traffic fully isolated from the public internet
- Azure Private Link для Redis та storage
- Dedicated private endpoints for all critical services
- Elimination of public exposure for caching and storage layers
- Custom Private DNS for internal routing
- SRV records for database failover and load balancing
- Fast and reliable internal name resolution without external DNS
Results after deployment
- 99.8% uptime for critical medical services
- Zero public data exposure — a fully private network
- Instant scalability through microservices
- Secure integrations with payment and AI services
Is complex infrastructure worth it? Absolutely.
1) Security first
The Zero Trust approach made it possible to completely eliminate public access to critical data.
2) Architecture = scalability
Microservices made it possible to scale the system without rebuilding the core.
Client feedback
What impressed us most was their ability to balance complexity with clarity — every architectural decision was well thought out and aligned with our long-term vision. Skynix became not just a technical partner, but a strategic one we can rely on as we continue to grow."
