• Support applications written in Java (1.6, 1.8, 11) with Servlet, JSF or Springboot, Angular or React and create patches for errors that may appear. • Review, Optimize and Debug Processes Stored in Databases (Oracle 11, 12, 16, 19, AS400, Sql Server) • Design of Api's for connection between applications. • Code debugging and optimization in Java Enterprise Edition.

• Verification of data migrated from an Oracle database to a SQL Server with python. • Verification of consumption of API's for an EPS with Java and curl. • Verification of Endpoints for frontends through de Java • Verification of frontend (login, upload and download of files, requests and claims) by means of selenium. • Registration of errors in mantis.

• Design, development and deployment of architecture for the website with a system (for payment to suppliers, calculation for temporary contractors and data validation) this was designed with React and NodeJS. • Verification and Debugging of Procedures Stored in Mysql Databases and later Migration to PostgreSQL. • Design, development and deployment of BL. • Development and execution of front and back integration tests.