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I will fix bugs in your java or nestjs backend application
Jessica A
About this gig
Is your Java or NestJS backend throwing errors you can't figure out? I can help.
I have experience fixing bugs in production microservices environments, including critical flows like payments, withdrawals, authentication, and event processing. I'm comfortable with messy codebases and legacy systems.
What I need from you:
- Your code or repository access
- Description of the bug and how to reproduce it
- Error logs if you have them
What you get:
- The bug fixed and explained
- Documentation of root cause (Standard and Premium)
- Clean, commented code (Premium)
Feel free to message me before ordering if you're not sure your case fits.
Get to know Jessica A
Jessica A
Backend Software Engineer Java Spring Boot NestJS Bug Fixing
- FromChile
- Member sinceJun 2026
- Avg. response time1 hour
Languages
Spanish, English
Hi! I'm Jessica, a Backend Developer with 1+ year of experience in Java and NestJS microservices.
I've worked on high-concurrency systems handling withdrawals, deposits, wallets and authentication. I'm good at reading production logs and finding what's broken — fast.
I can help you with:
Bug fixing in Java or NestJS
REST API development and integration
Spring Boot microservices
Log analysis (Elasticsearch, Kibana)
Legacy Java (Java 8, WebLogic)
If something's broken, I'll find it.
My Portfolio
Other Software Development Services I Offer
FAQ
What information do I need to provide?
Your code or repository access, a description of the bug, and error logs if available. The more context you give me, the faster I can fix it.
What if you can't fix the bug?
I'll let you know honestly before you pay. Message me first describing the issue and I'll tell you if it's something I can handle.
Do you work with legacy Java?
Yes, I have experience with Java 8 and WebLogic in enterprise environments.
