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I will fix bugs and add features to your c sharp dotnet application
Tim Ivashchenko
About this gig
Senior .NET developer with 20 years of experience. I was on the team behind the core of Sitecore CMS and led development teams. I will find and fix what is broken in your C# application or add the feature you need.
I work with:
- ASP.NET Core, ASP.NET MVC, Web API, Entity Framework
- WPF and Windows Forms desktop applications
- SQL Server and PostgreSQL
- Legacy .NET Framework code and migration to modern .NET
What you get:
- The cause of the problem explained in plain words
- A clean fix or feature in your code style
- Tests for the changed code where the project has tests
- A short note: what changed and how to check it
- Free fixes within the agreed scope for 30 days after delivery
Send me a description of the problem and, if you can, the repository or the code. I will look and tell you the package and the time before you order.
Get to know Tim Ivashchenko
Tim Ivashchenko
Senior dotnet developer for bots and automation
- FromUkraine
- Member sinceOct 2026
Languages
Ukrainian, Russian, English
Senior .NET and full-stack developer with 20 years in IT, including product and outsourcing companies: Sitecore, Global-e, Lohika, Luxoft. I was on the team behind the core of Sitecore CMS and led development teams.
Now I build Telegram bots, automations and web services for small businesses: booking and shop bots, n8n workflows, API integrations, data collection, content pipelines.
You get clean code, a README with run steps and free fixes within the agreed scope for 30 days after delivery. Message me with your task and I will suggest a solution.
Other Software Development Services I Offer
FAQ
How do I give you the code?
An invite to a private GitHub or GitLab repository is best. A zip archive also works.
Which .NET versions do you work with?
.NET Framework 4.x and modern .NET.
Can you work with an old project without tests?
Yes. I check the change by hand and describe how you can check it too.
What if the task is bigger than the package?
I will tell you before you order and send a custom offer.
