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I will develop java spring boot rest API and backend applications
Kavindu U
About this gig
Hi! I'm Kavindu, a Java Backend Developer specializing in Spring Boot, REST APIs, database integration, and backend application development.
I will develop a clean, secure, maintainable, and scalable Java Spring Boot backend based on your requirements.
What I can build:
- Spring Boot REST APIs
- CRUD APIs and backend services
- Database integration
- Authentication and authorization
- JWT-based authentication
- Business logic and validation
- Third-party API integration
- Existing API improvements and bug fixes
Technologies:
- Java
- Spring Boot / Spring
- Spring Data JPA / Hibernate
- REST APIs
- MySQL / PostgreSQL / Oracle
- Spring Security / JWT
- Maven
- Git / GitHub
- Postman
What you will receive:
- Clean and maintainable source code
- Well-structured REST endpoints
- Proper exception handling and validation
- Database integration when required
- Tested API functionality
- Clear communication throughout the project
Every backend project has different requirements. Please message me before ordering if you need authentication, complex database relationships, external integrations, or custom functionality.
Let's build a reliable Java backend for your application.
Get to know Kavindu U
Kavindu U
Full Stack Web Developer
- FromSri Lanka
- Member sinceSep 2026
- Avg. response time1 hour
Languages
Sinhala, English
Hi! I’m Kavindu, a Full Stack Web Developer specializing in MERN Stack, Next.js, React, Node.js, and Java. I build modern, responsive, and scalable web applications, including business websites, dashboards, REST APIs, authentication systems, and custom solutions. I focus on clean code, great performance, reliable functionality, and clear communication. Let’s turn your idea into a powerful web application!
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FAQ
What do you need from me before starting?
Please provide your API requirements, required endpoints, database details, authentication requirements, expected request/response formats, and any existing code or documentation. If you are unsure, message me and I can help define the requirements.
Which databases can you integrate with Spring Boot?
I can integrate Spring Boot applications with databases such as MySQL, PostgreSQL and Oracle using Spring Data JPA and Hibernate.
Can you add authentication and security?
Yes. I can implement authentication and authorization using Spring Security and JWT, including role-based access where required. Please contact me before ordering so I can review the security requirements.
Can you work on an existing Spring Boot project?
Yes. I can work with existing Java and Spring Boot projects for REST API development, bug fixes, new features, database integration and backend improvements. Please send the project details before ordering.
Will I receive the source code?
Yes. You will receive the complete source code included in your selected package, along with the implemented backend functionality.
