Javier A.

Senior Java engineer with 13+ years building and scaling backend systems. I currently lead engineering at edgeDX, a remote healthcare platform, where I own architecture, delivery and the team. What I do best: Java and Spring Boot backends, REST API design and integration, database design (PostgreSQL, MySQL, Oracle), and cloud deployments on AWS and GCP. I've also done migrations and modernization of legacy Java systems. Stack: Java, Spring Boot, Spring Security, Spring Batch, Spring Data, Hibernate, MyBatis, REST/SOAP, PostgreSQL, MySQL, Oracle, Maven, Git, AWS, GCP, Docker, CI/CD. Front-end when needed: React, Vaadin, ZK, JavaScript. I use AI coding tools (Cursor, GitHub Copilot) in my daily work to move faster on features, debugging, tests and refactoring, while I stay responsible for architecture and code quality. Background: years in financial institutions, so I'm used to strict deadlines, security requirements and working directly with stakeholders. 100% Job Success with 10,000+ hours on Upwork. Fluent English, based in Venezuela and available in US time zones.