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I will fix bugs and optimize your mobile app
Mobile App Developer Scalable Apps IoT Integration AWS ReactJS
Hi, I'm Navnit Kumar 👋 A React Native & Android Developer with 6+ years building high-performance mobile apps and IoT-connected solutions.
I specialize in cross-platform apps integrating hardware lik...
About this Gig
Is your React Native app crashing, running slow, or acting unpredictably? I can help.
I'm a mobile app developer with hands-on experience across React Native, Firebase, AWS, and Node.js, having built and maintained 12+ production apps across E-commerce, EdTech, Health, and Legal industries.
What I offer:
- Diagnose and fix crashes, freezes, and unexpected errors
- Resolve slow renders, laggy screens, and UI performance issues
- Fix memory leaks and reduce app size/load time
- Debug broken API calls, state management issues, and navigation bugs
- Update your app for compatibility with the latest Android/iOS versions
- Provide ongoing maintenance and monitoring support
I work directly in your existing codebase no rewrites, no unnecessary changes. Just clean, tested fixes with clear documentation of what was changed and why.
Send me your app's repo or error logs, and I'll get back to you with a diagnosis before we start, so you know exactly what to expect.
Let's get your app running smoothly again.
Platform:
Cross-platforms
App type:
Hybrid
Frameworks:
Jetpack Compose
•
Node.js
My Portfolio
FAQ
Do I need to share my full source code?
Yes, I'll need access to your GitHub repo or full codebase to properly diagnose and fix issues. I sign an NDA if required.
What if the bug takes longer than the estimated hours?
I'll always tell you upfront if a bug looks bigger than expected before starting extra work, so there are no surprise charges.
Can you work with an app you didn't originally build?
Yes, most of my clients come to me with apps built by other developers. I specialize in stepping into existing codebases.
Do you fix both Android and iOS issues?
Yes, I handle bugs on both platforms, including platform-specific issues like Android permissions or iOS build errors.
What do you need from me to get started?
Your repository access, a description of the issue (or crash logs/screenshots), and details on how to reproduce the bug if possible.
