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I will secure rest API with java spring boot and sql data base
Mykyta
About this gig
I am a Java backend developer specializing in building secure, scalable, and high-performance REST APIs using Spring Boot.
I help businesses and developers turn their ideas into fully working backend systems for web and mobile applications.
What I can build for you:
REST API development with Spring Boot
Secure authentication system (JWT, Spring Security)
CRUD applications with PostgreSQL / MySQL
Backend for web and mobile apps
Database design and integration
API documentation using Swagger
Bug fixing and improving existing Java applications
I write clean, maintainable, and scalable code following best practices in backend development.
Whether you need a complete backend system, authentication module, or help fixing issues in your existing Java project I can help you deliver a reliable solution.
Lets build your backend system the right way.
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Get to know Mykyta
Mykyta
Java Backend developer
- FromNorway
- Member sinceJan 2026
Languages
Russian, Ukrainian, English, Norwegian
👋 Hi! I’m Mykyta — a Java Backend Developer focused on building reliable, scalable, and secure backend systems. I specialize in RESTful APIs, database integration, and clean architecture.
🧰 Stack: Java, Kotlin, Spring Boot (Security, MVC, Data JPA), Hibernate, PostgreSQL/MySQL/SQLite, REST, Postman, Git, Gradle/Maven.
✨ Fast learner, growth-oriented, and a collaborative team player who enjoys building robust server-side solutions.
FAQ
What do you need to start working?
I need a clear description of your project idea or requirements. If available, please share wireframes, API documentation, or existing codebase.
Do you develop full backend systems?
Yes, I can build complete backend systems including REST APIs, authentication, database design, and integrations.
Can you fix bugs in my existing Java Spring Boot project?
Yes, I can debug and fix issues in existing Spring Boot applications and improve performance or structure if needed.
Do you provide API documentation?
Yes, I can provide Swagger documentation for all APIs if required.
What technologies do you use?
Java, Spring Boot, Spring Security, JWT, PostgreSQL, MySQL, Hibernate, REST APIs, Docker, JUnit, Swager, Git, Postman
