I will fix bugs in your java spring boot application and rest api

W
willian_cunha
W
willian_cunha
Willian
fix bugs in your java spring boot application and rest api
Full Screen
fix bugs in your java spring boot application and rest api
Full Screen
fix bugs in your java spring boot application and rest apifix bugs in your java spring boot application and rest api

About this gig

Struggling with bugs in your Java Spring Boot application?

Don't let errors slow down your project. I am here to help you debug and fix issues in your backend code quickly and efficiently.

I am a Java Backend Developer specialized in Spring Boot and REST APIs. I write clean, organized code and I can help you solve logic errors, compilation issues, or database connection failures.

I can help you with:

  • Fixing Java syntax and compilation errors.
  • Debugging Spring Boot application crashes (Error 500, 404, etc.).
  • Resolving Database connection issues (MySQL, PostgreSQL).
  • Fixing REST API endpoints and JSON responses.
  • Correcting logic errors in Services and Controllers.
  • Dependency injection issues (@Autowired, @Bean).

Why choose this Gig?

  • Fast Delivery: I understand that bugs need urgent attention.
  • Clean Code: I will not just "patch" it; I will fix it properly.
  • Detailed Comments: I will explain what went wrong and how I fixed it.

Technologies I use: Java, Spring Boot, MySQL, Maven/Gradle, Postman.


️ PLEASE NOTE: Contact me BEFORE placing an order! Every bug is different. Please send me a message describing the error (logs or screenshots) so I can confirm if I can fix it for you.

  • Programming language

    • Java

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Security
    • Databases

  • Frontend framework

    • Other

  • Backend framework

    • Spring

Get to know Willian

Willian
  • FromBrazil
  • Member sinceOct 2025
  • Avg. response time5 hours

  • Languages

    English, Portuguese
Hi, I'm Willian! 👋 I am a versatile professional focused on quality and detail. 💻 Java Developer: I build secure, scalable APIs using Spring Boot and MySQL. I am the creator of the "LP Premium" system and specialize in Clean Code to ensure your software is robust and easy to maintain. 📚 Beta Reader: I also have a passion for storytelling. I offer native Portuguese (PT-BR) beta reading, analyzing plots with the same critical logic I apply to programming. Whether you need a complex system or honest feedback on your book, I am here to help. Let's work together!

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