I will fix bugs your react native or next js app


About this gig
Is your app broken, throwing errors, or stuck on a failed API integration?
I fix bugs and integrate APIs in React Native, Next.js, and Node.js projects fast, clean, and documented.
What I fix:
- Crashes, build errors, and deployment failures
- State management bugs (Redux, Context, Zustand)
- Network/API errors, broken endpoints, CORS issues
- Race conditions and memory leaks
- TypeScript type errors
What I integrate:
- REST APIs (auth, payments, third-party services)
- AI APIs OpenAI, Claude/Anthropic, including streaming and function-calling
- Advanced AI features: agent tool-use, sandboxed code execution (E2B)
How it works:
- Send me your repo (GitHub/GitLab) and a clear description of the issue (error logs, screenshots, or steps to reproduce)
- I investigate and fix the root cause not just a patch
- You get clean, typed code with a short note on what changed and why
Why work with me:
TypeScript throughout no loose, untyped fixes
Clear communication, no disappearing mid-project
I explain why it broke, so it doesn't happen again
Not sure if your issue fits? Message me with your error log or repo link I'll tell you honestly if I can help before you order.
Get to know Mallawangan
Expert Experienced React Native developer
- FromIndonesia
- Member sinceFeb 2025
- Avg. response time1 hour
- Last delivery4 weeks
Languages
English, Indonesian
FAQ
What do you need from me to get started?
Access to your repository (GitHub/GitLab) and a clear description of the issue — error logs, screenshots, or steps to reproduce. The clearer the info, the faster I can fix it
Can you fix bugs in a project you didn't build
Yes, that's most of my work. I read the existing codebase, find the root cause, and fix it without breaking other parts of your app
Do you fix issues in deployed/production apps?
Yes, but I recommend testing fixes in a staging environment first if you have one. I'll always explain the fix before you deploy to production
What if my issue is more complex than expected?
I'll let you know right away if the scope is bigger than the package you ordered, and we can discuss upgrading or adjusting before I continue
Do you sign NDAs?
Yes, I'm happy to sign an NDA before reviewing your code if your project requires it.
What's the difference between "Fix documentation" and "Detailed code comments"?
Fix documentation is a summary report of what was wrong and what changed. Detailed code comments means inline comments added directly in the code itself
1 reviews for this Gig
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Rating Breakdown
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matthewwhitee

United States
Ongoing collaborationHe does a great job all around!
$100-$200
Price
3 weeks
Duration
Helpful?
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
M 
matthewwhitee

United States
Ongoing collaborationHe does a great job all around!
$100-$200
Price
3 weeks
Duration
Helpful?
