Custom software development case study

NexusHealth infrastructure: Custom Software Development Case Study

Designing a secure, high-load healthcare ecosystem with microservices, Zero Trust networking, and enterprise-grade cloud infrastructure.

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Intention: Design and implement a secure, scalable infrastructure for a healthcare ecosystem handling sensitive medical data.

Technologies used: Node.js, TypeScript, React, Docker, Nginx, Azure (VM, VNet, Redis, Blob, Front Door), MongoDB Atlas.

Team: 5 experts — DevOps engineers, backend architects, frontend developers.

Timeframe: 2 months of architectural design and implementation.

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

Skynix designed a completely custom cloud architecture based on a microservices approach with clear separation of responsibilities and data isolation.

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

Custom cloud architecture for healthcare scale

Core architecture principles

Zero Trust network — повна ізоляція даних через Private Link та VNet Peering.

Microservices scalability — незалежне масштабування кожного сервісу.

Real-time performance — WebSockets та Redis для миттєвої взаємодії.

Advanced infrastructure components

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

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

Is complex infrastructure worth it? Absolutely.

There can be no compromises in healthcare. NexusHealth proves that a properly designed infrastructure becomes not just a technical foundation, but a competitive advantage for a business.

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.

Is complex infrastructure worth it? Absolutely.

Key team members

Sofiia Korniienko

DevOps Engineer

Infrastructure

Artem Ishchenko

Back-end Developer

Development

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

Client feedback

"Skynix didn’t just build infrastructure — they engineered reliability. From the very beginning, their team approached the project with a deep understanding of both scalability and security challenges in healthcare.

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."