Worked on the iNeutronn/Railways repository, delivering backend features and reliability improvements using Java and Spring. Developed an Entrance Location Generator that validates map and entrance dimensions, supporting both random and sequential retrieval of entrance locations with configurable dimension setters. Introduced a Client Movement Calculation Helper to compute movement time and distance based on client speed and coordinates, integrating client speed configuration into the application setup. Enhanced configuration management by refactoring model setters to include defensive null and empty checks, throwing exceptions on invalid input to prevent runtime errors. This work focused on robust validation, maintainability, and accurate movement calculations.