Over a two-month period, contributed to the JU-DEV-Bootcamps/ERAS-BE and ERAS-FE repositories by delivering seven new features focused on developer productivity, security, and data integrity. Enhanced onboarding with Docker-based environment setup and comprehensive documentation, and implemented SQL injection protection and data validation using C# and Entity Framework Core. Improved import workflows by refining data handling and pagination logic, and introduced position-based data modeling to support accurate heatmaps and reports. Refactored backend and frontend code for maintainability, updated unit tests in TypeScript, and managed database migrations, resulting in more reliable data pipelines and streamlined development processes across both repositories.