Application backend

Secure REST APIs with Spring Boot 3

A consistent, secure API foundation with JWT auth, pagination and uniform error handling.

Architecture

ClientSpring Security 6 + JWTREST controllersService layerDatabase

The problem

Several services returned inconsistent responses and handled auth differently, which slowed front-end work and made errors hard to trace.

Spring Boot 3 with Spring Security 6 and database-backed JWT authentication.
A generic response wrapper and a global exception handler for uniform responses and errors.
Pagination, file operations and Spring Data JPA repositories.

Every endpoint returns the same response shape, so clients handle success and errors one way.

A modular Terraform codebase for a two-region AWS network in India, connected through Transit Gateway peering.

Dev, QA and production environments for a care-coordination platform with role-based access for clinical and admin staff.

Tell me what you’re building. You’ll get a reply within one working day — with questions, not a sales pitch.