I will help with API integration to backend or external platform apis


Level 2
About this gig
Welcome to my Java Development & Debugging Gig!
Need help developing, fixing, or improving your Java application? You're in the right place. With 6+ years of professional experience as a full-stack developer, I specialize in Java backend development, debugging, and performance optimization using Spring Boot, Hibernate, and JUnit.
What I Offer
- Custom Java project development from mini college projects to production-grade modules
- Bug fixing & debugging identify and fix issues in code, SQL queries, or logic
- Spring Boot enhancements add new APIs, update existing endpoints, or refactor code
- Unit testing (JUnit & Mockito) write or improve test coverage for stable builds
- Database integration fix or enhance queries in MySQL, PostgreSQL, or MongoDB
- Java GUI applications build user-friendly Swing or JavaFX interfaces
- Code optimization & documentation improve performance and maintainability
️ Technologies I Use
- Core Java, Spring Boot, Spring Data JPA, Hibernate
- JUnit, Mockito, Maven, Gradle
- MySQL, PostgreSQL, MongoDB
- Git, Docker, Postman
Every Java project is unique. Message me with your specific requirements, and Ill provide a custom quote with the best timeline and price.
Get to know Shubham Shah
Full Stack Developer Java and MERN Stack Expert AI Solutions Developer
Level 2
- FromIndia
- Member sinceJun 2021
- Avg. response time1 hour
- Last delivery5 months
Languages
English
My Portfolio
Other Software Development Services I Offer
FAQ
Can the delivery time be reduced?
Of course, a clear understanding of the requirements helps to optimize the time
Why select me ?
Will write a clean and organized code with comments.
Can the pricing be customized?
Yes, we can discuss about the requirements and will provide you quotation accordingly.
9 reviews for this Gig
| (8) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
P 
priyankgandhi0

India
It was pleasure working with shubham! Great at communication!
$50-$100
Price
3 days
Duration
Helpful?M mohammed_safi_

United Kingdom
Excellent coder, quick turnaround.
Helpful?M mohammed_safi_

United Kingdom
Was great working with him.
Helpful?M mohammed_safi_

United Kingdom
I had a great experience working with him. Communication of the seller was excellent. Also, he has completed the task on time in a short notice. Would recommend 10/10.
Helpful?S shmonkey

United Kingdom
I was very pleased with the code I recieved, it worked perfectly and I had no issues. The delivery was faster than I expected and the communication was also really good. I would recommend this seller to anyone looking for Java project development.
Helpful?
9 reviews for this Gig
| (8) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
P 
priyankgandhi0

India
It was pleasure working with shubham! Great at communication!
$50-$100
Price
3 days
Duration
Helpful?M mohammed_safi_

United Kingdom
Excellent coder, quick turnaround.
Helpful?M mohammed_safi_

United Kingdom
Was great working with him.
Helpful?M mohammed_safi_

United Kingdom
I had a great experience working with him. Communication of the seller was excellent. Also, he has completed the task on time in a short notice. Would recommend 10/10.
Helpful?S shmonkey

United Kingdom
I was very pleased with the code I recieved, it worked perfectly and I had no issues. The delivery was faster than I expected and the communication was also really good. I would recommend this seller to anyone looking for Java project development.
Helpful?

