Case Study: Secure and Scalable Microsoft Azure Infrastructure Deployment for a Multi-Workload Environment

The customer is a next-generation fintech platform delivering cutting-edge solutions in card issuance, consumer lending, and UPI-based credit lines and requires a robust, secure, and highly available Azure infrastructure. The goal was to ensure the seamless delivery of their cloud-native enterprise applications with complete control over data security, regulatory compliance, and operational scalability.

The Importance of Digital Integration

In our collaboration with a leading fintech provider, we enabled the foundation for digital excellence through a secure, scalable, and intelligent Azure cloud infrastructure. As the client delivers services such as real-time credit on UPI, consumer lending, and end-to-end card issuance, seamless digital integration was critical. Utilizing a combination of Azure services—including Virtual Machines (for Jump Server, Web Server, Database, and Active Directory), Azure Firewall, Virtual Network Gateway, and Azure Defender for Cloud—we designed an environment that ensures strong security, compliance, and operational agility.

To support business continuity and performance, Azure Backup, Snapshot, and VNet Peering were implemented, while Microsoft Intune was deployed to manage and secure on-premises endpoints. This integrated digital ecosystem now empowers the organization to offer faster, smarter, and more secure financial services, enhancing customer satisfaction, reducing operational overhead, and strengthening its position in the rapidly evolving fintech landscape.

Components Used

The architecture of this optimized system includes several key components:

• Jump Server(VM).
• Web Server(VM).
• Database Server(VM).
• Active Directory Server(VM).
• Azure Firewall(Basic).
• Azure Virtual Network gateway.
• Azure Defender for Cloud.
• Azure Backup and Snapshot.
• Azure Vnet Peering.
• Intune(For on-prem device)

Virtual Machines (Jump, Web, Database, AD)

We deployed a set of purpose-built virtual machines to segment workloads effectively. A Jump Server was provisioned to securely access internal resources; a Web Server hosts application interfaces; a Database Server (Linux-based with MongoDB) provides a high-performance backend; and an Active Directory Server manages domain services and central authentication. These VMs are optimized with a combination of HDD and SSD storage based on workload needs, and are secured using internal IPs and NSGs.

Azure Firewall (Basic Tier)

We configured Azure Firewall as the single point of control for all inbound and outbound traffic, applying DNAT and network rules to enforce strict access policies.

Azure Virtual Network Gateway (VpnGw1)

To enable hybrid access, we implemented a site-to-site VPN gateway allowing secure, encrypted connectivity between the client’s on-premises environment and Azure resources.

Azure Defender for Cloud

Advanced security posture management was enabled with Defender for Cloud (Plan 2), allowing real-time threat detection, compliance tracking, and recommendations.

Azure Backup & Snapshot

We configured daily and hourly backup policies along with disk snapshots for critical systems, ensuring point-in-time recovery and data durability.

Azure VNet Peering

VNet peering was established across subnets to enable high-speed internal communication without exposing public endpoints.

Microsoft Intune Integration

To extend control beyond the cloud, we deployed Intune to manage and secure on-premises endpoints, enforce compliance, and support remote device administration.

Architecture Diagram

Real-World Application

The deployed Azure infrastructure directly supports the client’s fintech operations by enabling secure, scalable, and high-performance delivery of services like real-time credit on UPI, digital lending, and card issuance. With controlled access via the Jump Server, secure data management through the Database VM, and seamless user authentication via Active Directory, the environment ensures 24/7 availability, regulatory compliance, and faster onboarding of new users and services. This setup allows the client to rapidly launch new financial products, scale operations on demand, and maintain a strong security posture, critical for staying competitive in the fast-paced fintech landscape.

Conclusion

Azure DNS, Azure Virtual Machine Scale Sets (VMSS), and Azure Application Gateway collaborate seamlessly for efficient website hosting and delivery in Azure. Azure DNS manages domain names and DNS records, ensuring fast and reliable resolution of website addresses to Azure resources. VMSS automates the deployment and scaling of virtual machine instances based on traffic demand, optimizing performance and ensuring scalability. Azure Application Gateway serves as a layer 7 load balancer, directing incoming HTTP/HTTPS traffic to backend VM instances within the VMSS. It supports advanced traffic management features like URL-based routing and SSL termination, enhancing application delivery and security.

Together, these services enable organizations to achieve reliable, scalable, and secure website hosting in Azure, providing an optimal user experience globally while simplifying management and improving operational efficiency.