I will develop java spring boot rest apis and backend services


About this gig
Looking for a reliable Java Spring Boot developer to build secure and scalable REST APIs?
You're in the right place.
I'm a Software Engineer with over 2 years of professional experience developing enterprise applications for the insurance and media industries. I specialize in building secure, scalable, and maintainable backend solutions using Java, Spring Boot, REST APIs, MySQL, and MariaDB.
What I can help you with:
- Custom REST API Development
- CRUD API Development
- Spring Boot Backend Applications
- MySQL & MariaDB Database Integration
- Third-Party API Integration
- JWT Authentication & Authorization
- Request Validation & Exception Handling
- Bug Fixing and Performance Optimization
- Clean, Well-Structured, and Maintainable Code
Why choose me?
- Enterprise software development experience
- Clean architecture and industry best practices
- Clear and responsive communication
- On-time delivery
- Source code included with every order
Please contact me before placing an order for complex or custom requirements. I'll be happy to discuss your project and recommend the best solution for your needs.
Get to know Thinusha Supun
Software Engineer, Web Applications, REST APIs, SQL
- FromSri Lanka
- Member sinceJul 2026
Languages
Sinhala, English
Other Software Development Services I Offer
FAQ
What information do you need before starting?
Please provide your API requirements, required endpoints, database structure, authentication needs, expected request and response formats, and any existing source code or documentation. For custom projects, contact me before ordering so I can confirm the appropriate package.
Which technologies and databases do you support?
I primarily develop backend solutions using Java, Spring Boot, Spring Data JPA, Hibernate, REST APIs, MySQL, and MariaDB. I can also discuss integration with other databases or existing systems based on your project requirements.
Can you add JWT authentication and role-based authorization?
Yes. JWT authentication and authorization can be included for projects requiring secure login, protected endpoints, and role-based access. This is included in the Premium package or can be provided through a custom offer.
Can you work with an existing Spring Boot project?
Yes. I can add new endpoints, integrate databases or third-party APIs, fix backend issues, improve validation and exception handling, and enhance existing Spring Boot applications. Please share the current project details before ordering.
Will I receive the complete source code?
Yes. Complete source code is included with every package. Depending on the selected package, I can also provide code comments, configuration instructions, API documentation, and database setup guidance.
What counts as one API endpoint?
Each API operation counts as one endpoint. For example, creating, retrieving, updating, and deleting a customer are separate endpoints. Please contact me when your scope includes multiple modules or complex business rules.

