HTML, CSS, PHP, JavaScript, jQuery, TypeScript, React, Vue, Redux, Stencil, Node.js, Electron, Wordpress, Socket.io, Webpack, Babel, Gulp, jQuery, Bootstrap, Python, Django, Flask, Delphi, C++, C#, Assembler, Scheme, Sharding, CodeIgniter, Laravel, Kohana, Bitrix, WebSocket, REST, PostgreSQL, MySQL, SQLite, MS SQL, MongoDB, Redis, Git, Redmine, Jira, Windows, DOS, Linux, , OOP, Parser