Case Study: Leading Financial Services Provider achieves near-zero downtime AWS migration with Persistent Systems

Near-zero downtime application migration to AWS for a leading financial software provider

Persistent Systems helped a leading financial services provider migrate its on-premises Microsoft .NET-based electronic software delivery application to AWS. The customer needed the application to be cloud-ready before migration, while remediating security, legacy and unused code, sunset endpoints, direct database connections, and improving centralized secrets management, configuration changes, SSO, and audit trails.

Persistent Systems built a migration framework and enabled cloud readiness through custom API Gateway service onboarding, SOAP API authentication and authorization, integration with internal data protection and configuration services, and AWS infrastructure provisioning with Terraform. Persistent also supported compliance, encryption, testing, and post-migration maintenance, resulting in near-zero downtime via blue-green deployment automation, a highly available region-based resilient service, and strong peak-load handling with Auto Scale for patch releases.