Parcourir les catégories
Explorer
Fiverr Pro
Français
$
USD
I will fix java spring boot bugs, errors and build issues
Sarmad Habib
À propos de ce service
Your Java app throws an exception you can't trace. Or it compiled fine yesterday and won't start today.
I'm a Java developer with 5+ years on production systems. Most of that time has been spent inside existing codebases finding out why something broke, fixing it, and explaining what happened.
WHAT I FIX
- Runtime exceptions: NullPointerException, ClassNotFound, stack traces you can't decode
- Spring Boot: bean wiring, dependency injection, autoconfiguration conflicts
- Maven and Gradle: build failures, dependency version conflicts
- REST API bugs: wrong responses, serialization, error handling
- Hibernate and JPA: lazy loading, N+1 queries, mapping problems
- Tomcat deployment: app won't start, port conflicts, memory errors
WHAT YOU GET
Corrected source files, plus a plain explanation of what was wrong and how to avoid it next time.
BACKGROUND
Migrated production apps from JDK 8 to 21 and Tomcat 9 to 11. Debugged live memory-exhaustion incidents on running servers.
Message me with your error before ordering and I'll tell you which package fits.
Découvrez Sarmad Habib
Sarmad Habib
Software Engineer
- DePakistan
- Membre depuissept. 2024
- Temps de réponse moy.1 heure
Langues
Anglais
Java developer, 5+ years on production systems that can't go down.
Most of my work is inside existing codebases: finding why something
broke, fixing it, and explaining what happened. I've migrated
production apps from JDK 8 to 21 and Tomcat 9 to 11, and debugged
live out-of-memory incidents on running servers.
Day to day: Java 8-21, Spring Boot, Hibernate, Maven, Oracle and
PostgreSQL, Tomcat on Linux, GitLab CI/CD.
Message me with your problem before ordering. I'll say honestly
whether I'm the right person.
Mon portfolio
Autres services de Développement de logiciels I Offre
FAQ
Can you fix it if I only send the error message?
Sometimes, but not reliably. A stack trace tells me where it broke, not why. Send the relevant code too and you'll get a real fix instead of a guess.
What Java versions do you work with?
Java 8 through 25, including apps mid-migration between them.
Will you sign an NDA?
Yes. Send it before ordering.
Can you work directly in my repo?
Yes->GitHub, GitLab or Bitbucket. Add me as a collaborator after you order.
What if you can't fix it?
I'll tell you within the first few hours and cancel, so you don't lose money or time.
