Need expert help with your Java backend or API project?
I'm José Luis , a Senior Java Developer with over 10+ years of experience building scalable and secure backend systems for industries like banking, retail, telecom, and healthcare across LATAM and Europe.
What I can help you with:
- Backend development in Java 8, 11, and 17
- REST API creation and integration (Spring Boot, RxJava, WebFlux)
- Microservices architecture with Docker, Kubernetes, Azure, AWS
- Integration with databases: Oracle, PostgreSQL, MySQL, SQL Server
- Secure development (JWT, OAuth2, AES encryption, best practices)
- Debugging, refactoring, and optimizing existing Java code
- Writing or fixing unit and integration tests
- Migration of legacy systems to modern Java stacks
- Cloud infrastructure provisioning (Terraform, Azure API Gateway, Event Hub, AKS)
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Tools & Technologies I Use:
- Java 11, 17 · Spring Boot · Hibernate · RxJava · WebFlux
- Azure & AWS · Docker & Kubernetes · GitHub · Jenkins · Swagger
- Kibana, Grafana, Dynatrace for monitoring & debugging
- Agile methodologies (Scrum, Jira)
Why work with me?
- 10+ years of real-world enterprise experience
- Experience with mission-critical financial systems