For over 19 years, he has been programming mainly C # and JAVA. I developed my professional experience from PASCAL, DELPHI systems through almost all versions 1,2,4,5,7,2006. More or less, this applies to projects based on SQL (MSSQL, DB2, ORACLE, SYBASE, INTERBASE ...) for 5 years C # .NET. Optimizing the efficiency of the assumed activities, efficient migration of data between systems, ie the broadly understood integration of IT systems is my daily work day :-) 2011- For the Software Developer's Journal (No. 3/2011 JAVA in ORACLE databases) I have developed an article on the placement of a graphical EAN code 13 in the database field, making it possible to use it in various combinations and printouts of tools that can read the value of graphics from the base field. Currently implemented projects work in state offices and institutions, among others: NFZ, PZU, NSA, a dozen or so Labor Offices, District Poviats, Voivodship Offices and WORDs. Also in commercial institutions of multi-stores trade chains, production plants whose information we provide in face-to-face conversations.