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I will debug and optimize your c sharp c plus plus or sql code
Denys
About this gig
Tired of slow, buggy, or spaghetti code slowing you down?
Im a C#/.NET backend developer who lives for clean, high-performance code and I can debug, optimize, and refactor your project so it runs like it should have from the start.
What I do best:
- Fix compilation & runtime errors in C#, C++, SQL, Java, Python, JavaScript
- Debug crashes, memory leaks, and weird it only breaks sometimes issues
- Optimize algorithms, loops, and SQL queries for speed
- Refactor messy code into something future developers will actually thank you for
- Improve maintainability and scalability without breaking your current logic
- Document everything clearly from README to inline comments
Why work with me instead of the cheapest option?
Because I deliver fast, business-ready results, not quick patches that break in a week.
- Speed without cutting corners
- Direct, clear communication
- ️ Maintainable code thats easy to extend
Whether its a single bug or a full code review, I bring the same level of precision and care to every project.
Lets make your code fast, clean, and future-proof starting today.
Get to know Denys
Denys
CSharp NET Backend Expert: Fast Clean and Business Driven Code
- FromUnited Kingdom
- Member sinceDec 2023
Languages
English, Ukrainian, Spanish, German
Hi, I’m a C#/.NET backend developer creating clean, high-performance systems. I build REST APIs, optimize PostgreSQL/SQL databases, handle migrations, and apply Clean Architecture for maintainable code. Skilled in debugging, refactoring C#/C++ code, async/await, and efficient algorithms. I also work with Unity scripts, Swagger docs, unit tests, and CI/CD pipelines. My solutions help your team scale fast, ship reliable features, and avoid messy code — code that doesn’t just work, it wins.
My Portfolio
FAQ
What do I need to send you to start?
Please send your code files (or a link to the repository), a short description of the issue, and any relevant error messages or screenshots. The more details you provide, the faster I can help.
Can you work with any programming language?
My main focus is C#, C++, SQL, Java, Python, and JavaScript, but I can also assist with similar languages and frameworks if needed.
Do you only fix bugs, or can you also improve existing code?
I can do both — fix bugs, troubleshoot crashes, and also refactor and optimize your code to make it cleaner, faster, and more maintainable.
How do you deliver the fixed code?
I will send the updated files or a pull request to your repository, along with explanations and comments so you know exactly what was changed.
Can you sign an NDA (Non-Disclosure Agreement)?
Yes, I can work under an NDA if your project requires confidentiality.
How do you handle urgent requests?
If you have a critical issue that needs fixing ASAP, I offer an Extra Fast Delivery option so you can get results in the shortest time possible.
