Backend Developer — Batch Jobs Modernization & Testing
Summary
Rewrite legacy batch jobs at Rapsys Technologies in Singapore: analyse old scripts, reverse-engineer their processing logic, and progressively migrate them to a modern framework with functional parity, while writing unit/regression tests and integrating with the modernised PTMS application using Java or C#.
Rapsys Technologies Pte Ltd. in Singapore is seeking a Backend Developer to rewrite batch jobs.
You will analyse legacy scripts, reverse-engineer processing logic, and progressively convert batch jobs across modules into a modern framework while preserving functional parity with the originals. You will implement unit and regression tests for each rewritten job and support integration with the modernised PTMS application, using Java or C# on the backend.