How FlairsTech Offered Legacy Modernization for Secure, Automated Delivery

About the Client:

The client was operating legacy .NET applications on deprecated infrastructure and needed to stabilize its environment before undertaking a broader application refactoring initiative. With no automated CI/CD processes in place, development teams relied on manual builds and deployments, while security and code-quality concerns created additional risks. The client needed a practical legacy modernization approach that could improve application stability, delivery processes, and code quality without disrupting ongoing operations.

Challenges:

As the client prepared for a larger modernization effort, several technical and operational challenges needed to be addressed:

• Legacy .NET applications running on deprecated infrastructure
• No CI/CD setup in place; builds and deployments were entirely manual
• Urgent need to improve security and code quality before refactoring could begin

Solutions:

• Deployed applications to a Docker Swarm cluster as a temporary, stabilizing platform
• Set up Azure DevOps pipelines for continuous integration and deployment
• Integrated SonarQube for ongoing code analysis and technical-debt tracking
• Optimized Azure networking and storage configuration for cost and performance

Impact:

The stabilization and modernization initiative delivered measurable improvements in application quality, delivery continuity, and modernization readiness, including the following:

• Continued delivery maintained throughout the modernization effort
• 75+ code quality issues resolved in the first month alone
• Clear path paved for a full transition to a modern architecture