**Front-end**
Bootstrap3 e 4, MustardUI, Bulma and SemanticUI frameworks
Vanilla Javascript and jQuery
AngularJS
Angular (4 and 6)
VueJS (beginner/basic knowledge)
ReactJS

**Back-end**
PHP
    CMS
        Wordpress Development (Themes and Plugins)
        Prestashop 1.6 and 1.7
        OctoberCMS
        Concrete5
    Frameworks
        Laravel
        Symfony (mid level)
        Codeigniter
Go (beginner's level -- but loving it)
Python (really noob level -- but already a fan)

**Database**
MySQL
SQLite
PostgreSQL (basic level)
CouchDB
PouchDB

**Mobile**
Java (Native Android)
Cordova (Hybrid Javascript mobile)
React Native (has its caveats but great fun)

**Desktop**
ElectronJS
NWJS (not anymore)
JavaFX
PyQT5