I'm an Android and web developer of broad experience. I can do following types of projects:

Web backend(mainly): Android, PHP, Java EE;
Web frontend(mainly): Android, jQuery, Javascript, CSS;
Web scraping(Python, JAVA);
Simple Security engineering(Burp Suite);
Other projects using Android, Python, Java, PHP, Javascript;

Also I have knowledge of following topics:
Network protocols;
Cloud/Distributed system(peer-to-peer overlay network etc.);
Blockchain technology;

Email: crazycryptoz777@gmail.com
Telegram: @CrazyCryptoz (https://t.me/CrazyCryptoz)