Oracle, MSSQL, MySQL, HSQL, Interbase/Firebird, dBase, PostgreSQL, Informix, DB2, MariaDB, MS Access, Paradox, IMS, Sybase, MongoDB, RavenDB, BigTable, Cassandra, CouchDB, Hypertable.
Java EE, Java SE, Web Services, JSON, REST, RMI, JNDI, JSP, JSF, Velocity, SSL, JBoss, JBoss Seam, Apache, Apache Wicket, GlassFish, Drools, Hibernate, JPA, EJB, Seam, Swing, xSwing (autorskie rozszerzenie biblioteki Swing), Spring, Freemarker, GWT, Thinlet, CSS, JQuery, HTML, xHTML, MVC, PrimeFaces, RichFaces, AngularJS, Grails, GORM, ASP .NET Web Forms, Silverlight, AJAX.
Delphi, Pascal, C, C++, C#, .NET, Java, Objective C, Assembler, Visual Basic, Groovy(Grails), XML/XLS, SGML, UML, Algol, Prolog, LISP.
ant, escript, PHP, JavaScript, Flash/ActionScript, Flash Lite, TSQL, noSQL, PL/SQL, Perl, Python, Ruby.
MS Visual Studio, Delphi, JBuilder, Eclipce, NetBeans, C++ Builder, xCode, Borland Developer Studio, PL/SQL Developer.
Jasper Reports, iReport, Rave Reports, Crystal Reports, Aperte Reports.
Java ME, Windows Mobile, Windows Phone, Android, Apple iOS, Symbian, BalckBerry OS, Bada, Brew.
Scrum, Agile, Prince2, PMI/PMBOK.
Visual Basic for Applications (Excel), OpenGL, DirectX, DirectShow, GIS.