• Maintained and extended a platform used by universities and research organizations to manage grants, funding and regulatory compliance. Improved and added back-end and front-end functionality across .NET/VB.NET, Angular and Classic ASP modules; built user interface elements with Telerik/Kendo UI.
• Implemented cross-module reporting on employee profiles, including field-access settings and data mapping. Developed new and optimized existing views and stored procedures, and prepared scripts for SQL Server and Oracle. Checked and aligned regional configurations. Used ChatGPT to draft scripts, followed by manual review.
• Optimized JSON and XML export for large reports by revising string generation and adding indexes for the underlying queries.• Enhanced budget version creation in Angular and TypeScript by adding a modal dialog and shared helper code while preserving direct links to pages.
• Fixed dependent-field behavior and access permissions in electronic forms, and resolved Unicode corruption in XML stored in SQL Server and Oracle.
• Developed HTML task messages with data substitution, storage of the sent content and markup checks through the existing validation mechanism.

• Developed and manually tested a human resources information system using C#, .NET, ASP.NET MVC and Ext.NET; enhanced server-side logic and the user interface.
• Created and optimized SQL queries, views and stored procedures for SQL Server and Oracle.
• Proposed and integrated a Telerik component to display the company’s organizational structure as a tree.

• Developed and enhanced a management information system for telecommunications companies using C#, .NET, ASP.NET MVC, JavaScript, HTML and XML.
• Fixed back-end and front-end issues; worked with SQL Server and Oracle queries, views and stored procedures. Used SVN and Git.

• Worked on a management reporting project for a bank’s operations division: analyzed source systems, data schemas and the methodology for calculating key performance indicators.
• Updated data-mapping specifications for the warehouse and data-quality requirements in a project integrating approximately 20 source systems.