Legacy Software Modernization Services for a Telecom Company

Edvantis helped the Freenet Group – the largest network-independent telecom provider in Germany – upgrade its legacy codebase and migrate to a more agile microservices architecture.

  • Service

    Staff Augmentation​

  • Industry


  • Location


legacy services migrated
months spent for migration
large brands in the Freenet Group


As a market leader open for innovation, Freenet Group decided to proactively handle legacy software migration and modernization. The original systems were built on a technology stack no longer sufficient for Freenet Group’s business needs.    

Main Goals

  • Preserve the business logic for all the applications
  • Migrate application to new technologies – Java 11 and Spring Boot framework.


Edvantis engineers helped Freenet Group adopt microservices architecture for their products, update legacy libraries and perform extensive code refactoring. To double-check if new technologies are implemented correctly, we ensured full test coverage. 

Technologies Used

Java 11, Spring Boot

Edvantis has intelligent people on board, competent and ready to get the job done. Their professionalism and approach to development has made for a good experience thus far, along with the speed and accuracy of their work.
Thomas Reimann
Division Head Billing and Backend, Freenet Group

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