I will fix bugs, review, and improve your web application


About this gig
Fix Bugs, Improve Code & Get Expert Help for Your Web Application
Are you stuck with a bug, error, or unexpected behavior in your application?
I will help you quickly identify, fix, and improve your code so your application runs smoothly and efficiently.
What I Can Help You With
I provide professional support for:
Bug Fixing & Debugging
- Fix frontend issues (React / TypeScript)
- Resolve backend errors (Spring Boot / Java)
- Debug API failures and integration issues
- Fix logic errors and unexpected behaviors
Code Review & Improvement
- Clean and optimize your code
- Identify bad practices and hidden issues
- Suggest better structure and maintainability improvements
System Design & Technical Guidance
- Improve your application architecture
- Suggest scalable and efficient system design
- Help you make better technical decisions
️ Setup, Configuration & Integration
- Fix environment and configuration issues
- Assist with project setup
- Help with API integrations and third-party services
Performance Optimization
- Identify slow or inefficient code
- Improve application speed and responsiveness
Packages
Please contact me with:
- Error details or screenshots
- Code snippet or repository access
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Uvindu S
Full Stack Developer React and Spring Boot Bug Fix Specialist
- FromSri Lanka
- Member sinceOct 2025
- Avg. response time1 hour
Languages
English
My Portfolio
FAQ
What programming languages are you prefer?
Java, JavaScript, TypeScript
What frameworks and tools are you familiar with?
Java springboot, Java spring security, React, Tailwindcss
