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I will fix android app crashes, kotlin bugs and spring boot errors
About this Gig
Your app crashes on launch, the build won't compile, or your Spring Boot service keeps failing? I'll find the root cause and hand back code that works.
Senior full-stack engineer, 20+ years shipping production software (Java, Kotlin, TypeScript, React Native, Spring Boot).
I can fix:
Android: startup crashes, ANR, Gradle/build failures, Android Studio errors, memory issues
Kotlin/Java: coroutine errors, null-safety crashes, memory leaks, dependency conflicts
Spring Boot/backend: failing endpoints, JPA problems, auth errors, API integrations
React Native: JS errors, native module linking, backend connectivity
Docker, CI/CD and environment setup
How I work:
1. You send the error, logs or a screen recording
2. I reproduce it, find the root cause and explain it in plain English
3. I fix it on a branch and deliver a pull request
What you get: the bug fixed, clean code that matches your style and passes your build, a written explanation of cause and fix, plus source code.
Based in New Zealand, working with teams worldwide. I reply within a few hours, in English or Mandarin.
Message me with the error and how to reproduce it. If I can't solve it, I'll say so.
Platform:
Cross-platforms
App type:
Hybrid
Frameworks:
Flutter
•
NativeScript
•
Jetpack Compose
•
Node.js
Tools:
Expo
•
Bravo
•
Android Studio
•
Unity
•
Xcode
FAQ
Do you need access to my code to fix the bug?
Yes - repository access (GitHub, GitLab or Bitbucket) or a zip of the project, plus a way to reproduce the issue. I work on a branch and open a pull request, so you keep control of every change.
What information do you need from me to start?
The error message or log excerpt, the steps to reproduce it, and the result you expected. A screenshot of the stack trace is often enough to begin, and I will confirm what is still missing before I start.
Can you fix a bug in my existing codebase?
Yes, that is most of the work. I match your existing style, structure and naming, and I do not rewrite code that is unrelated to the bug. You review every change through a pull request before it ships.
Which technologies do you work with?
Kotlin and Java for Android and Spring Boot backends, TypeScript and React Native for cross-platform apps, plus Gradle, Git, Docker and CI/CD pipelines. I also work in Python, Go and C# when the codebase calls for it.
My issue is urgent and blocking a release. Can you still help?
Yes. Message me before ordering and tell me the deadline and the impact. I will confirm whether I can meet it, and if the problem is bigger than one package I will tell you what it actually needs - no wasted budget.
