Development of backend bots and scripts integrated into existing Windows Forms and ASP.NET apps. Importing, sorting, normalizing, and persisting data from PostgreSQL, SQL Server, and Access. Automation of payroll, HR, and settlement processes through backend workflows. Implementation of data validation rules and control mechanisms to ensure data integrity. Optimization of complex and simple SQL queries, achieving significant execution time improvements. Provided second-level technical support for backend processes in production environments. Monitored and verified files in production using FTP/SFTP (FileZilla). Generated structured reports and KPIs.