I worked with a big backend system that is responsible for providing social security data consolidated by a massive number of rules of the entire active population in the country. This system, called ExtratoCNIS, receives about 80K requests every day. I managed the maintenance of this system and improved the testing process with tools like Fixture Factory.I also was responsible for migrating an existing architecture that used a mainframe communication (a system called SEFT). After that I made the implementation of the change (Integration with REST, RMI, Sockets, IBM Mainframe, Oracle Database, PL/Sql, and C/C++).I designed, developed and led technically a project with a team of 5 people. Some of the technologies used: Java SE and EE (experience with Java 6, 7, and 8), Spring Boot, Spring Batch, REST, Weblogic, JBoss, JMS Queue, Hibernate, JPA, JUnit, DBUnit, Fixture Factory, Mockito, Hamcrest, Log4J, ELK, Git, Maven, Oracle.

I worked on the reconstruction of a system responsible for the anticorrosion control in Petrobras' oil platforms. This system was made using Java 6, and AngularJS with object-oriented JavaScript.Technologies used: Java SE and EE, AngularJS, JavaScript, jQuery, JSF, RichFaces, Spring, Weld, JPA, JBoss, REST, Hibernate, Git.

I worked with analysis and systems development using Java, JSF, JavaScript. Mostly resolving open issues about several company's systems.I also worked with analysis and maintenance of triggers and stored procedures of the legacy systems. Technologies used: Java, ASP, JavaScript, jQuery, JSON, Junit, SQL Server, Git.

I worked with analysis, support, and development of systems to integrate components and software in the automation area of the creation of virtual machines in the Cloud (Petrobras Private Cloud) using a framework of CA Technologies. I was responsible for integrating the IBM environment in the Systems Director tool (integration using these technologies: REST/JSON/JavaScript/Sockets). Technologies used: Java, JavaScript, REST, and Automation with IBM Systems Director.

I worked on the reconstruction of a system responsible for the legal compliance control in Petrobras' oil platforms. Technologies used: Java 6 and 7, JSF, SpringMVC, Hibernate, JPA 2.0, Oracle, Junit.

I assisted on management and survey of project requirements of Guia do Anfitrião (start-up with 5 people). And I worked programming the system with a framework called Future Pages (created by a member of the team). I also worked developing georeferencing apps with Open Layers and JavaScript.Technologies used: Java, PostgreSQL, REST, JSON, GeoTools, GeoServer, PostGis, OpenLayers, JavaScript, EJB, Junit, SVN.

I worked with analysis and development of a health insurance system made with the JHeat framework (developed by own Infoway, closed source). I also had an opportunnity to coordinate 2 teams (10 people) using the best practices of Agile Scrum. On every iteration I processed and analysed the data to improve the results of the teams.Technologies used: Java SE 5 and 6, JHeat, Hibernate, PostgreSQL, MySQL, SQL Server, JasperReports, SVN.

I worked with analysis and development of systems using JSF, PrimeFaces, and Scrum to help the team in the development process.I also worked in an integration of the systems with IBM DB2.Technologies used: Java, JavaScript, JSF, Hibernate, PrimeFaces, Junit, SQL Server, IBM DB2, SVN.

I worked building a small administrative system with JSF framework and also administered the database (MySql) on the application that I made.Technologies used: Java EE 6, Glassfish, MySql, Junit.

I worked on maintaining a small administrative system, network support, and supporting users.Technologies used: Java EE 6, Tomcat, MySql, Junit, and Linux.