Legacy Software Modernization to Microservices Architecture for Telecom-Related Business

The client operates legacy systems built on outdated Java 6 and JBoss application servers, which no longer meet current business demands. These systems hinder scalability, flexibility, and rapid deployment of new services, risking operational disruptions and reduced competitiveness.

A large, independent telecom service provider managing multiple brands, serving millions of subscribers with telecommunication, broadband, and media services.

• Preserve existing business logic across all legacy applications during migration.
• Upgrade and refactor legacy codebases to Java 11 with Spring Boot framework.
• Transition to a scalable, future-proof microservices architecture.
• Ensure zero operational disruptions during migration, maintaining seamless service delivery.
• Enhance code quality via refactoring and static analysis.
• Improve system responsiveness and ability to meet growing subscriber demands.

• Refactoring legacy code to improve maintainability and compatibility with Java 11.
• Upgrading legacy libraries utilizing Spring Boot features.
• Implementing a reactive architecture approach to enable non-blocking, scalable services.
• Porting and deploying multiple legacy services onto the new infrastructure.
• Providing comprehensive testing including code coverage reports, integration testing, and static code analysis to verify correctness and readiness.

• Legacy systems and services for migration
• Testing frameworks for verification
• Monitoring and deployment tools to support seamless transition

• Zero operational downtime during migration process
• Code coverage exceeding 80% to ensure test reliability
• System scalability to handle increasing subscriber base and data volume
• High performance and responsiveness of migrated services
• Maintainability through clean, well-documented code

Successfully modernizing legacy telecom systems will enable the client to scale operations efficiently, meet increasing market demands, and sustain competitiveness. The migration aims to ensure dependable, future-ready infrastructure capable of supporting exponential growth, ultimately improving service agility and customer satisfaction.