Hi! I'm:

Hatim Debboun

Backend Developer · Java & Spring Boot

Backend developer passionate about building robust and scalable systems. I focus on event-driven architectures, security by design, and best testing practices to ensure high-quality code for production. Seeking my first full-time opportunity to continue growing and adding value.

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> Projects

Hotel Reservation Management System

REST API and backend web application for full hotel and reservation management, with role-based auth and double-booking prevention.

Java 21Spring Boot 4.0Spring SecurityJPA/HibernateMySQLThymeleaf

Closed

View repo

Real-Time Price Alerts System

Event-driven platform where users set price alerts and get instant push notifications via Kafka + WebSocket the moment a target price is hit, no polling.

Java 21Spring Boot 3.5Apache KafkaReactWebSocketSecurityJWTMySQLDocker

Closed

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Real-Time Ordering and Inventory System

E-commerce platform built on 4 independent microservices (gateway, orders, inventory, notifications) communicating asynchronously via Kafka, with full resilience and observability.

Java 21Spring Boot 4.1Spring Cloud GatewayApache KafkaDockerRedisObservability

Closed

View repo Live demo

> Skills

Backend

Java 21Spring BootREST APIsApache KafkaSpring SecurityWebSocket/STOMPPHP

Frontend

JavaScript ES6+ReactBootstrapThymeleafHTML5CSS3

Persistence

JPA/HibernateMySQLPostgreSQL

Testing & Quality

JUnit 5MockitoClean CodeSOLIDBean Validation

DevOps

DockerGitHub ActionsGitMavenNginx

> Contact

Let's talk

Open to backend/full stack opportunities. Based in Barcelona.

thos.debboun.hatim@gmail.com

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