PHP programming (OOP (encapsulation, inheritance, polymorphism), ORM, MVC, Singleton, Strategy, Abstract Factory, Composite, Reflection API) MySQL(JOIN, UNION, VIEW, CREATE, ALTER, DROP, GRUOUP BY, TRANSACTION, LOCK TABLES, FOREIGN KEY, PROCEDURE, FUNCTION, TRIGGER ...) PostgreSQL Kohana Framework, Yii2 Framework – good knowledge. Zend Framework – I’ve worked with that but I’ve forgotten. Symfony Framework – basic knowledge. Delphi - basic knowledge. C++ - basic knowledge. C# - basic knowledge. Assembler - basic knowledge. Basic knowledge of Linux command line. Git HTML, CSS coding(div). JavaScript, Jquery, AngularJS, Ajax.