Browse categories
Explore
Fiverr Pro
English
$
USD
I will build or modernize your desktop app in wpf, winforms or avalonia
Issam
Vetted Pro
5.0
5.0
Vetted by Fiverr Pro
Issam was selected by the Fiverr Pro team for their expertise.
About this gig
I build and modernize Windows desktop software in C# - WPF, WinForms and Avalonia.
WHAT I BUILD
- New desktop apps with proper MVVM, an Entity Framework Core data layer, and SQL Server or PostgreSQL behind it
- Reporting, printing, offline data and an auto-updating installer
- Windows shell extensions and Office add-ins when the app has to reach into the OS
WHAT I MODERNIZE
This is the bigger half of my work. If you have a WinForms or VB app from a decade ago that still runs the business, I move it onto .NET 9 module by module, so the old system keeps serving users until the last piece is across. I have done VB to C#, .NET Framework to .NET Core, and standalone Office add-ins to Office 365 with Office.js.
HOW IT WORKS
Message me before ordering with a rough description and a screenshot if you have one. I will tell you which package fits, or send a custom offer, and give you a realistic timeline rather than a hopeful one. Every package includes full documented source code and a handover call.
Five years of .NET for teams in the UK, Netherlands, Australia, Estonia and France.
Get to know Issam
Issam
Vetted Pro
Senior NET engineer, ASP NET Core APIs, Blazor, MAUI and WPF apps
Issam is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.
Vetted for
Software Development
- FromMorocco
- Member sinceNov 2021
- Avg. response time1 hour
- Last delivery2 years
Languages
English, Arabic, French
I build .NET software end to end - the ASP.NET Core API, the Blazor or React front end, and the WPF, Avalonia or MAUI app on top of it. Five years, 22 five-star reviews, and clients in the UK, Netherlands, Australia, Estonia and France.
Where I am strongest: Stripe payments and treasury flows, Keycloak, SSO and OAuth2 identity, and moving legacy .NET Framework or VB apps onto .NET 10 without a full rewrite.
You also get my co-founder Chaimae, so that is two .NET engineers and one point of contact. Message me before you order and I will tell you honestly whether your project is a fit.
Other Software Development Services I Offer
FAQ
What information do you need to get started?
I need detailed requirements for your project, including any design specifications, functionalities you want, and any existing code or databases you'd like to integrate.
Can you help with both frontend and backend development?
Yes, I specialize in Full Stack development, so I can handle both frontend and backend tasks, including database integration and server-side logic.
Do you provide maintenance and support after the project is completed?
Yes, I offer maintenance and support services to ensure your application runs smoothly. Please contact me to discuss the specifics and pricing.
What technologies do you use for development?
I use WPF, WinForms, Avalonia UI, C#, XAML, SQL Server, Entity Framework, and Azure Cloud services, among others.
How do you ensure the quality of your work?
I follow best practices in coding and design, use the MVVM design pattern for maintainable code, and conduct thorough testing to ensure high quality and performance.
Can you migrate my existing application to a new technology stack?
Yes, I can migrate your existing applications to WPF, Avalonia UI, or other modern frameworks to improve performance and maintainability.
How long will it take to complete my project?
The timeline depends on the complexity and scope of the project. Once I have all the details, I can provide a more accurate estimate.
Do you offer custom pricing for larger projects?
Yes, for larger or more complex projects, I can provide custom pricing. Please contact me to discuss your requirements in detail.
What if I am not satisfied with the delivered work?
Your satisfaction is my priority. If you are not satisfied, I will work with you to make necessary revisions. Please review my revision policy for more details.
How do you handle data privacy and security?
I follow strict data privacy and security protocols to ensure your information is protected. All data is handled confidentially and securely.
Reviews
8 reviews for this Gig
| (8) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
R ruby95
United States
Ongoing collaborationFast delivery, and perfect work
$50-$100
Price
Helpful?R ruby95
United States
Ongoing collaborationGreat experience, very friendly seller
$100-$200
Price
Helpful?R ruby95
United States
Ongoing collaborationVery friendly seller and has quick responses. I will love to work with him again.
$50-$100
Price
Helpful?R ruby95
United States
Ongoing collaborationOnce again, timely delivery and good work
$50-$100
Price
Helpful?T 
tashriqsulaiman
South Africa
Communication and dedication to achieving and executing tasks to better than you had even asked. Amazing guy
$50
Price
Helpful?
Reviews
8 reviews for this Gig
| (8) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
R ruby95
United States
Ongoing collaborationFast delivery, and perfect work
$50-$100
Price
Helpful?R ruby95
United States
Ongoing collaborationGreat experience, very friendly seller
$100-$200
Price
Helpful?R ruby95
United States
Ongoing collaborationVery friendly seller and has quick responses. I will love to work with him again.
$50-$100
Price
Helpful?R ruby95
United States
Ongoing collaborationOnce again, timely delivery and good work
$50-$100
Price
Helpful?T tashriqsulaiman
South Africa
Communication and dedication to achieving and executing tasks to better than you had even asked. Amazing guy
$50
Price
Helpful?
