• Create and maintain ETL applications for Oracle databases. • Improved performance and stability of database systems. • Developed views and materialized views for data replication in distributed environments. • Reverse-Engineering to help Busines Analicts update/undertund olders reports. • Create and maintain python and perl and shell scripts for invoking SQL scripts, do data transformation. • Create and maintain Oracle reports. • Developed Complex database objects like Stored Procedures, Functions, Packages and Triggers using SQL and PL/SQL, following best practices regarding QA and implementation standards. • Expertise in Dynamic SQL, Collections and Exception handling. • Create and maintain scripts on SQL*Loader to load data from files(xml,csv,txt,xls,xlsx) obtained from various facilities every day. • Data Modelling. • Review business specifications. • Developing technical specifications. • Create and maintain ETL applications for Hadoop Yarn with HDFS architecture. • Debug/Maintain datastage ETL Packages. • Create and maintain PIG/Shell scripts. • Data validation after data loaded. • Create custom reports after data loaded. • Responsable for UAT environment. • Data migration and Application migration(PL/SQL (triggres,procedures, functions, packages,ecc) , MSSQL SQL and Java (webservices, SOA, xml, xsd, Jboss)). • Design, code, and support software solutions that can easily be scaled depending on client needs. • Developing graphical end-user applications and tools in Delphi and JavaEE(Eclipse/Hibernate),JavaSE, Spring, JavaScript, NodeJS, HTML e CSS. • Ensuring that functionalities and/or modules developed integrate properly into existing system. • Perform data analysis to identify anomalies in client data. • Perform analysis, coding, unit testing, and integration of new/existing solutions. • Working on a variety of client-side applications and solutions. • Working with Q/A to track problems, debug, perform regression tests and close issues. • Maintain product quality by carrying out reviews, performing continual tests, analyzing feedback, and managing software integration. • Participated in user requirements meetings in order to transform client needs into proposed application designs. • Enhances and support internal application based on detailed specifications. • Fixing bugs, after identification the cause. • Compiling and install the system for testers. • System documentation. • Work with agile methodology (SAFE,Scrum, XP,Cambam), IBM tool RTC. • Work whit TFS, VSS, Git. • Responding to incidents. • Updating and installing software developed by the company. • SLA control and interacting whit other áreas. • Developing frontend application for SAP services. • Configuration mobiles devices as blackberry, android and IOS for AD integration. • Local and remote network administration. • Deploy and maintenance servers in mixed network(servers Linux and Windows) for/running , dns, webservices(apache), exchange