Case Study: a leading U.S. energy utility modernizes legacy applications with Trianz’s Concierto Modernize

a leading U.S. energy utility modernizes legacy .NET in weeks with Trianz

a leading U.S. energy utility faced the challenge of modernizing a mission-critical legacy application built on an outdated .NET Framework and SQL Server 2008 stack. The aging, monolithic system constrained developer productivity, lacked automated deployments, and needed a cloud-native transformation while preserving decades of business logic and data. They engaged Trianz, utilizing its Concierto Modernize platform to address this.

Trianz executed a full modernization, migrating the application to .NET 8 on AWS Fargate and re-platforming the database to Amazon Aurora PostgreSQL. The solution, automated with Terraform and CI/CD pipelines, transformed the system into a cloud-native architecture with enhanced security and compliance. The results included a complete, validated migration with zero data loss and a repeatable, automated deployment process, accomplished within an accelerated timeline of weeks.