VB.NET WinForms Patch Development

I need a developer to add new features to my existing VB.NET WinForms application. The primary task is to integrate the application with various APIs and web services. Key Requirements: - Work with legacy code to implement new integration features - Ensure seamless connection and data exchange with external APIs/web services - Maintain application stability and performance during the integration process Ideal Skills and Experience: - Proficiency in VB.NET and WinForms - Experience with integrating APIs/web services - Strong understanding of legacy code and how to work with it - Ability to troubleshoot and resolve any issues that may arise during the patch development The status: - Legacy code lives on local machine (and can be accessible from the outside) - The Sub in question does SQL to old ERP. This Sub needs replacement: API call to new ERP - The VB code to call new ERP is already done and tested - The draft of this new Sub is done The dev should: - investigate legacy code, especially the Sub in question - integrate, and possibly modify, new proposed Sub - work with person on site to test the performance