I will fix bugs and debug your java or python code

H
hugoji_studio
H
hugoji_studio
Alex Ji
fix bugs and debug your java or python code
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fix bugs and debug your java or python code
Full Screen
Full Screen
fix bugs and debug your java or python codefix bugs and debug your java or python codefix bugs and debug your java or python code

About this gig

Code not working? Getting errors you can't figure out? I'll find and fix the problem fast.


I can help with:

  Java / Spring Boot errors

  NullPointerException, threading issues

  SQL errors, database connection problems

  Spring configuration issues

  MyBatis / MyBatis-Plus mapping errors

  Python script debugging

  Build errors (Maven, dependency conflicts)


Why choose me:

  · I find the root cause, not just patch the symptom

  · I explain what went wrong so you can avoid it next time

  · Most bugs fixed within 24 hours

  · Free re-fix if the same bug comes back


Send me:

1. Your error message or stack trace

2. The relevant code snippet

3. What you expected vs. what happened


I'll take a look and give you a quote. Message me first!

  • Programming language

    • Java

Get to know Alex Ji

Alex Ji

Independent Java Developer

  • FromChina
  • Member sinceJul 2026

  • Languages

    Chinese, English
I'm Alex — a Java backend developer building production RESTful APIs and microservice systems. I've worked on backends for SaaS and AI platforms — from database design to deployment. What I do: ✓ Spring Boot backend from scratch ✓ RESTful API with validation & error handling ✓ MySQL schema, indexing, optimization ✓ Microservice integration (Feign, MQ) ✓ Bug fixing & code review Tech: Java · Spring Boot · MyBatis · MySQL · Redis · Git · Docker Clean code, fast delivery. Free fixes within 7 days. Message me!

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