Leonardo S.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I am a sofware developer with more than 7 years working in big Java projects, as a team fullstack developer, and contractor for important companies like Philips, IBM, EA, Orbitz. Born and based in Argentina, I have experience working in Europe, lived for a year in Germany. Also worked for several companies in the US with fluent communication with clients and stakeholders. My main experience is in Java, using different frameworks, in different environments, different domains, using Ruby on Rails last two years, as well as with scripting languages like Javascript or Python. Main technologies I have experience with: Spring, Ruby on Rails, AngularJS, RestEasy, SOAP, Maven, Javascript, CSS, HTML, JSON, JBPM, JMS, jQuery, JBoss, Tomcat, Spring MVC, Hibernate, Selenium, QA automation.