I will develop a custom windows desktop application in dotnet, wpf or winforms

T
tomislavvasilev
T
tomislavvasilev
Tomislav V.
develop a custom windows desktop application in dotnet, wpf or winforms
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develop a custom windows desktop application in dotnet, wpf or winforms
Full Screen
develop a custom windows desktop application in dotnet, wpf or winformsdevelop a custom windows desktop application in dotnet, wpf or winforms

About this gig

Need a Windows program that does one job well? I build desktop applications in C# and .NET (WPF or WinForms) and deliver them with full source code and an installer.


What I can build:

- Business tools: data entry, reports, invoices, inventory, Excel/CSV import and export

- Utilities: file processing, system tools, background services, tray apps

- Apps that talk to your API, database (SQLite, MySQL, SQL Server) or online service

- Licensing with license keys, auto-update, multi-language UI

- Fixes and new features in your existing C#/.NET app


Why me:

- 17 years of software development

- I build and sell my own signed Windows app (a PC cleaner in C#/.NET, 13 languages, online licensing), so I know the full path from code to installer and code signing

- Clear questions first, regular updates, clean code that you own


Please message me before ordering with a short description of what the app should do, so I can confirm the scope and the right package.

  • Expertise

    • Debugging
    • Localization
    • Performance
    • Security
    • Databases

  • Programming language

    • C#

  • Frontend framework

    • Other

  • Backend framework

    • Other

Get to know Tomislav V.

Tomislav V.

Full Stack Developer for Web, Windows and Android Apps and Bots

  • FromBulgaria
  • Member sinceOct 2026

  • Languages

    English, Bulgarian
Developer with 17 years of experience. I build websites, Windows desktop apps, Android apps, bots and automation, plus the Linux servers they run on. My own live products: a signed Windows PC cleaner in C#/.NET (13 languages, Stripe licensing), its Android app on Google Play, and a multiplayer game (Unity + Python server). I can help with PHP/Python/JS sites, WordPress, Discord/Telegram bots, web scraping, API and payment integrations, AI/LLM tools and server setup. Clear questions first, regular updates, clean documented code.

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Other Software Development Services I Offer

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