Android
Java / Kotlin
MVP / MVVM
Android Architecture Components
RxJava2 / Dagger2 / Retrofit2
Glide / Picasso
SQLite / Realm / Room
Espresso / JUnit / Mockito
IOS
SWIFT / Objective-C
DI / IoC / Factory
SOA / MVVM / VIPER
Realm / CoreData
RxCocoa / RxSwift / R.Swift
xUnit / OCMock
Frontend
HTML5, CSS3, jQuery
Angular.js / React.js / Vue.js
Redux, Node.js
Bootstrap
webpack / Gulp
Sass / Less / Stylus
Pug / Twig
PHP
Smarty / Twig / XSLT
Git / Mercurial / Composer
MySQL / PostgreSQL / MongoDB
v7+
Yii / Yii2 / Zend
Sphinx / ElasticSearch
memcached
C#
DI Autofac
XUnit / MSTest
MS SQL 2012+ / MySQL / Postgres
v7+
ASP.NET MVC 4.5 + Web.API 2.0
ASP.NET Core 2.0
Entity Framework 6.0 / EF.Core