I will fix your javascript or API bug

D
dennismathisen
D
dennismathisen
Dennis Mathisen
fix your javascript or API bug
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fix your javascript or API bug

About this gig

Are you stuck with a bug or error you cant solve?


I help fix real issues in JavaScript, APIs, and frontend code.

I work daily on real projects and understand how frustrating it is when something doesn't work especially when errors dont make sense.


I can help with:


JavaScript errors (console issues, broken logic)

API problems (data not loading, fetch issues)

Frontend bugs (buttons, UI not updating)

General debugging and troubleshooting


Each package includes a limited amount of work time (see package details).

For larger or more complex issues, I may recommend upgrading.

If you're unsure, just send me the issue and Ill take a look.


I focus on finding the root cause not just quick fixes.


Lets fix your issue.

  • Platform

    • Other

  • Programming language

    • JavaScript
    • Python
    • HTML & CSS
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Get to know Dennis Mathisen

Dennis Mathisen

Affordable and reliable, I get things done!

  • FromNorway
  • Member sinceOct 2025
  • Avg. response time1 hour

  • Languages

    English, Norwegian, Swedish
Hi, I’m Dennis — a developer focused on fixing bugs and improving web applications. I work with Python (FastAPI), JavaScript, and frontend systems to debug issues, fix broken logic, and get things working properly. My focus: Debugging JavaScript and frontend issues Fixing API errors and backend problems Cleaning up code and improving reliability I’m detail-oriented, reliable, and focused on clear, practical solutions — not quick patches. If something isn’t working the way it should, send me the issue and I’ll help you figure it out.

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