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$
USD
I will fix your java bug fast
Yongchuang Li
About this gig
NEW TO FIVERR SPECIAL:
I am offering my services at a discounted rate to build my reputation here. You get Senior Tech Lead quality at a Junior price. Grab this deal before I raise my rates!
Your Spring Boot app crashed? I'll get it running fast.
I'm a Senior Java Developer and Tech Lead. I fix Spring Boot bugs daily.
️ PLEASE READ BEFORE ORDERING:
- Basic ($5): Fix ONE simple bug (Compilation error, Startup failure, NullPointerException).
- Standard ($20): Fix ONE complex bug (Logic error, Database issue, API bug) + Root Cause Analysis.
- Premium ($45): Fix multiple bugs in one module OR 30-min screen share.
What I DO NOT fix in Basic Package:
- Complete project rewrites
- Business logic redesign (this requires a new development gig)
- Frontend issues (I focus on Backend/Java)
Why me?
- 6 years Java experience
- Built meetwise.online (Live SaaS)
- Clean, working code guaranteed
How it works:
1. Send me the error log or describe the issue.
2. Share your code (GitHub repo or Zip file).
3. I fix it and explain what went wrong.
Get to know Yongchuang Li
Yongchuang Li
Java Developer AI Powered SaaS and API Integration
- FromChina
- Member sinceMar 2026
Languages
Chinese, English
I'm a Senior Java Developer and Tech Lead with 6 years of experience. I built meetwise.online, a live AI SaaS product that analyzes meetings, detects conflicts, and quantifies risks.
I specialize in:
Spring Boot development & Architecture
REST API design (Scalable & Secure)
AI integration (OpenAI, LangChain4j)
Legacy code cleanup & Refactoring
Fast Response & Delivery. I treat your code like my own.
SPECIAL OFFER FOR FIRST 5 ORDERS:
Order any gig and get a FREE Code Review Report ($80 value). I'll review your Java code and give actionable feedback.
Let's build something great together.
My Portfolio
Other Software Development Services I Offer
FAQ
Can you fix any Java error?
I specialize in Spring Boot, Java 8-21, MySQL/PostgreSQL. If unsure, contact me first.
What if the bug is more complex than expected?
I'll pause and discuss with you. We can upgrade to Standard/Premium or cancel.
Do you write new code?
No. This gig is for fixing existing code bugs. For new features, see my API Development gig.
Can you show me your work?
I built meetwise.online — a live AI SaaS product with Java Spring Boot backend. You can try it yourself.
Why is your price lower than others?
I am new to Fiverr but not new to coding. I have 6 years of experience and built a live SaaS product. I am just offering a lower price to get my first few 5-star reviews. Once I have them, my price will go up.
