I will fix bugs and errors in your java spring boot backend or API

M
mouad_ziyani
M
mouad_ziyani
Mouad Ziyani
fix bugs and errors in your java spring boot backend or API
Full Screen
fix bugs and errors in your java spring boot backend or API
Full Screen
Full Screen
fix bugs and errors in your java spring boot backend or APIfix bugs and errors in your java spring boot backend or APIfix bugs and errors in your java spring boot backend or API

About this gig

Is your Spring Boot app crashing, throwing 500 errors, or refusing to start? I'll find the root cause and fix it properly.


I can fix:

  • Startup errors, bean creation and dependency injection issues
  • JPA / Hibernate and database errors (PostgreSQL, MySQL)
  • Spring Security and JWT authentication problems (401 / 403)
  • CORS errors between your API and React or mobile frontend
  • Broken endpoints, validation and exception handling
  • Maven / Gradle build failures and Docker issues


How it works:

  1. Send me the error message and your code (GitHub link or zip)
  2. I reproduce the bug, find the cause and fix it
  3. You get working code plus a short explanation of what was wrong


I'm a Java full stack developer who has built JWT-secured Spring Boot APIs for real React web apps and React Native mobile apps, so I know where these bugs usually hide.


Not sure if I can fix it? Send me your error and I will reply the same day.

  • Programming language

    • Java

  • Expertise

    • Debugging
    • Performance
    • Security
    • Databases

  • Frontend framework

    • React.js
    • Thymeleaf

  • Backend framework

    • Spring
    • Spring Boot

Get to know Mouad Ziyani

Mouad Ziyani

Java Full Stack Developer, Spring Boot and React

  • FromMorocco
  • Member sinceJan 2022
  • Avg. response time1 hour

  • Languages

    English, French, Arabic
Hi, I'm Mouad, a Java full stack developer from Morocco. I build secure Spring Boot APIs and React apps. Recent work: for Detroit Computer, I built a React admin app and a React Native field app on a JWT-secured Spring Boot API. Projects: AffiliateLink, a modular Spring Boot API (Spring Modulith, JPA, PostgreSQL, Docker), and BOUGDIM, a bookstore e-commerce app (Laravel, React, MySQL). I can build: • REST APIs with Spring Boot or Laravel • Admin dashboards in React • Mobile apps with React Native • Database design and bug fixes Order directly, or message me for a custom offer.

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