Languages
HTML, JavaScript, HTML5, SQL, PHP, Ruby, XAML, C#, Java, C++, C, Objective-C, Object Pascal
Frameworks
Yii 2, PhoneGap, Yii, Ruby on Rails (RoR), Selenium, AngularJS, Zend Framework, Symfony 2, iOS SDK, CakePHP, Knockout.js
Libraries/APIs
jQuery, Facebook API, Amazon API, jQuery Mobile
Tools
Zabbix, RubyMine, Google Analytics, Adobe Photoshop, NPM, Microsoft Visual Studio, Bundler, Composer, PhpStorm
Platforms
Windows, LAMP, iOS, Android, Xamarin, Universal Windows Platform (UWP)
Storage
MySQL, NoSQL, MariaDB, PostgreSQL, SQLite, Memcached, Sphinx Search Engine, Redis, MongoDB
Paradigms
Cross-platform, DevOps, Aspect-oriented Programming, Waterfall Development, Pair programming, Extreme programming, Test-driven Development (TDD), Agile Software Development, Object-oriented Programming (OOP)
Other
AJAX, Data Analysis, Urban Airship, System Architecture, SOAP