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I will implement spring security 6, jwt authentication, and role based authorization
Yaseen P
About this gig
Struggling with Spring Security 6 or broken JWT authentication in your Spring Boot API?
Securing modern REST APIs can be tricky, especially with deprecated configurations in recent Spring versions. I will implement a production-ready, clean, and secure authentication & authorization system for your Java Spring Boot application.
What I Deliver:
- Spring Security 6 Configuration: Modern SecurityFilterChain setup without deprecated classes.
- JWT Authentication: Secure token generation, signature validation, and claims extraction.
- Refresh Token Rotation: Long-lived user sessions with secure refresh token handling.
- Role-Based Access Control (RBAC): Restrict endpoints by roles (e.g., ROLE_USER, ROLE_ADMIN) using @PreAuthorize.
- Password Encryption: Secure hashing using BCryptPasswordEncoder.
- CORS & CSRF Configuration: Eliminate frontend integration blocks (React, Angular, mobile apps).
- Postman Collection Included: Pre-configured requests to test login, registration, and protected endpoints instantly.
Tech Stack:
- Java 17 / 21 | Spring Boot 3+ | Spring Security 6 | Spring Data JPA | MySQL / PostgreSQL
Please message me before placing an order with your project requirements so we can discuss th
Get to know Yaseen P
Yaseen P
Java Backend Developer
- FromIndia
- Member sinceSep 2026
- Avg. response time1 hour
Languages
English
I am a Java Backend Developer and BCA graduate with hands-on experience designing, building, and deploying distributed backend systems. I have built and live-deployed a 7-service Spring Boot microservices platform utilizing AWS, Docker, and JWT-based security. I specialize in optimizing scalable applications and implementing event-driven processing.
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Other Software Development Services I Offer
FAQ
Can you add JWT authentication to my existing Spring Boot project?
Yes. I can integrate JWT authentication into your existing Spring Boot REST API, including login, token generation, token validation, and protected endpoints.
Can you implement role-based authorization?
Yes. I can implement role-based access control such as USER and ADMIN and restrict specific endpoints based on the user's role.
Do you use BCrypt to secure passwords?
Yes. I can configure BCrypt password hashing so passwords are securely stored instead of being saved as plain text.
Can you fix my JWT or Spring Security authentication errors?
Yes. I can troubleshoot common authentication and authorization issues such as 401 Unauthorized, 403 Forbidden, invalid JWT tokens, authentication filter problems, and Spring Security configuration errors.
Can you test the authentication APIs?
Yes. I will test the implemented authentication and authorization functionality using Postman and verify the protected endpoints.
What do you need from me to start?
Please provide your Spring Boot project as a ZIP file along with your requirements. If you already have users, roles, or database tables, please explain how they currently work. Do not include passwords, API keys, database credentials, or other sensitive i
Can you add JWT authentication to a new project?
Yes. I can add JWT and Spring Security to a new Spring Boot REST API. For a completely new backend, please contact me first so we can discuss the required functionality and scope.
Can you configure Swagger/OpenAPI for JWT authentication?
Yes. I can configure Swagger/OpenAPI so you can authorize with your JWT token and test protected API endpoints directly from Swagger UI.
