Command-line tool to migrate sensitive data from Apache Cassandra in Ericsson Dynamic Activation 1.0 to 2.0, supporting a major system modernization.
Built at Ericsson to safely migrate sensitive production data between major versions of Ericsson Dynamic Activation (EDA). The CLI tool handled data fidelity across Cassandra schemas, graceful failure recovery, and supported the broader legacy modernization programme. Also refactored legacy EDA codebases to improve maintainability and resolved customer-escalated reliability issues.