> Building scalable systems, APIs and intelligent backend solutions
> Java • Spring Boot • Microservices • AI • Cloud

Backend Developer focused on the Java + Spring Boot ecosystem, building REST APIs, microservices and scalable, business-oriented systems.

I have hands-on experience in real-world projects, working across backend development, performance optimization, QA, integrations and system architecture.

Currently working with:
-> Distributed systems
-> Complex data modeling (relational + non-relational)
-> Service-to-service integrations
-> Software quality and testing
-> Legacy system evolution

-> My goal is to grow as a Software Engineer, building scalable, high-performance solutions with real impact.

> Core Skills
✔ Backend Architecture        ✔ REST APIs Design
✔ Microservices              ✔ Clean Architecture
✔ Database Optimization      ✔ Software Quality (QA)
✔ CI/CD & DevOps             ✔ Scalable Systems
✔ Problem Solving            ✔ Business-Oriented Development


> Tech Stack:
-> Backend
Java • Spring Boot • Spring Data • Spring Security • Hibernate • JPA

-> Databases
PostgreSQL • Oracle • MySQL • MongoDB • PostGIS

-> DevOps & Tools
Docker • Git • GitHub Actions • CI/CD

-> Frontend
React • TypeScript • JavaScript • Angular

-> Testing & Quality
JUnit • Mockito • Manual / Automated QA • Code Review

> Contact
-> Email: devhernandojunior@gmail.com
-> LinkedIn: https://www.linkedin.com/in/hernandojunior
-> GitHub: https://github.com/HernandoJunior