Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix your java spring boot bugs and review your backend code
Zia
About this gig
Is your Java or Spring Boot app throwing errors you can't figure out? I'll find the bug, fix it fast, and explain exactly what went wrong so it never happens again.
What I fix & review: NullPointerException, ClassCastException & runtime errors Spring Boot startup failures & bean injection errors REST API not returning correct response JWT / Spring Security authentication issues Database connection & JPA/Hibernate errors Maven/Gradle build & dependency conflicts Performance bottlenecks & slow queries Code review with improvement suggestions
How it works:
- Share your code or GitHub repo
- I analyze and identify all issues
- I fix the bugs and return clean code
- I explain every fix clearly in comments
Why choose me? Senior Java & Spring Boot developer with real-world experience. I don't just fix the symptom I fix the root cause. Clean, commented, professional code every time.
Message me first with your error I'll tell you if I can fix it before you order!
Get to know Zia
Zia
Senior Android and Java API Developer
- FromPakistan
- Member sinceJan 2018
- Last delivery1 year
Languages
Urdu, English, Punjabi
Hi, I'm Zia — a Senior Android & Java Developer with real-world experience in building scalable mobile apps and secure backend systems.
I specialize in:
✔️ Android app development (Kotlin/Java)
✔️ REST API integration & development (Spring Boot)
✔️ Secure systems & data handling
✔️ Firebase & real-time applications
✔️ Bug fixing, optimization & performance improvement
💡 What makes me different?
* Clean, maintainable, and scalable code
* Strong problem-solving mindset
* Clear communication & on-time delivery
* Focus on long-term client relationships
Let’s build something great 🚀
My Portfolio
Other Software Development Services I Offer
FAQ
What do you need from me?
Your code file or GitHub link, the error message or screenshot, and a description of what it should do.
Can you fix Android Java bugs too?
Yes — I fix both Android Java and Spring Boot backend bugs.
What if you can't fix my bug?
Message me first with details. I only accept orders I'm confident I can solve — full refund if I can't.
Do you sign an NDA?
Yes, I'm happy to sign an NDA to protect your code privacy.
How do you return the fixed code?
As a zip file with the corrected files and a comment explaining every change made.
