I will fix bugs and errors in your java and spring boot app

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Walid El

About this gig

App throwing errors? Endpoint returning 500s? Something that worked yesterday suddenly broken? I'll find the root cause and fix it not just patch the symptom.


I debug Java and Spring Boot applications daily and can quickly diagnose:

- Runtime exceptions and stack traces (NullPointer and friends)

- Spring Boot startup and configuration failures

- Broken or misbehaving REST endpoints

- Spring Data / JPA / Hibernate and database query issues

- Authentication, CORS, and security misconfigurations

- Dependency, build, and Maven/Gradle problems


How it works: send me the error, your repo (or the relevant files), and steps to reproduce. I'll pin down the cause, fix it, explain what went wrong in plain language, and verify it works.


Fast turnaround most single bugs are resolved same or next day.


Not sure how big the problem is? Message me with the error message or a screenshot first and I'll tell you honestly which package fits before you order.

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Get to know Walid El

Walid El

Senior Software Engineer with over 9 years of experience

  • FromMorocco
  • Member sinceAug 2025
  • Avg. response time1 hour
  • Languages

    English, Arabic
I’m a full-stack developer based in Morocco with a Master’s Degree in Computer Science. I specialize in Java and Angular, bringing experience from small companies to large clients like BMW. I have honed my technical skills and ability to manage projects and teams independently across various industries.

My Portfolio