business application development
Secure and Compliant Azure‑Native Application Architecture
Client industry
HR technology and digital HR solutions

Implementation period
4 months

Challenge
Redesign application architecture for Azure while meeting GDPR and compliance requirements.
Key takeaways:
  • Cloud‑ready application architecture
  • GDPR compliance foundation
  • Secure and scalable Azure environment
  • DevOps and automation enabled
From Local Development to Cloud Ambitions
The client is a startup developing HR solutions that handle sensitive personal and health‑related data. The initial version of the product was built and tested on local servers, which worked during early development stages but quickly became a limitation.

As the startup prepared to scale and enter regulated markets, it became clear that the existing architecture was not suitable for cloud operation or compliance with GDPR and HIPAA requirements. A structured and secure Azure‑based architecture was needed before further product growth.

Understanding the Starting Point
The project began with a detailed audit of the current solution. The application stack included Node.js and Angular for development, MySQL for data storage, and Elastic for search and analytics.

The audit focused on security, data flows, infrastructure dependencies, and cloud readiness. This allowed gaps to be identified early and helped shape a future‑proof architecture aligned with Azure best practices.

Designing for Compliance and Security
A target architecture was designed specifically for operation in the Azure cloud environment. Special attention was given to data protection, access control, and network isolation as a foundation for GDPR and HIPAA compliance.

The architecture defined how sensitive data should be stored, processed, and protected using Azure‑native security services. This design became the technical baseline for future certification and compliance efforts.

Building Cloud Environments the Right Way
Separate environments were deployed for development, testing, and production. This ensured isolation between stages, reduced operational risks, and supported controlled release processes.

Infrastructure‑as‑Code principles were applied to standardize deployments and enable repeatability. This approach also laid the groundwork for DevOps practices and automated environment management.

Leveraging Azure and Cloud‑Native Services
The solution was built using a wide range of Azure services to support scalability, performance, and security. Azure App Services hosted application components, while MySQL instances and Cosmos DB handled structured and distributed data.

Virtual Networks, virtual machines, Blob Storage, Azure WAF, Azure CDN, Key Vault, and Docker were used to create a secure and flexible runtime environment. Elastic Stack supported monitoring and analytics, while Cloudflare provided additional traffic protection and performance optimization.

A Strong Foundation for Growth and Innovation
By the end of the project, the startup had a modern, cloud‑ready application architecture built for scale and compliance. Developers received clear recommendations to optimize and adapt their code for Azure, reducing future technical debt.

The client is now positioned to grow confidently, onboard new customers, and meet regulatory requirements without redesigning the platform again. The Azure architecture supports both innovation and long‑term stability.

Planning a compliant Azure setup?

Contact us.

Related case studies