I understand you are looking for a software developer to modify an existing Desktop Application. Specifically, you need someone to make the necessary modifications to the application's code so that the required features and functionalities can be implemented.
If you choose me for this project, I can guarantee that it will be done professionally and quickly. My team and I have extensive experience in desktop application development, specifically in the areas of desktop application development, software key panel development and desktop application modification.
We are confident that our skillset extends beyond what is required for this project - specifically in programming languages (including Dart, Golang, Javascript, TypeScript, PHP, Java), major project (Crypto Currency, Fantasy) and front-end (Flutter for Web and Mobile & Desktop & macOS Apps) as well as mobile (Flutter SDK), back-end (Firebase) APIs (Stripe/Paypal), architectural patterns (MVC/MVP/MVVM) & design tools (Sketch/Adobe XD/AI/Sketch).