I am native Russian speaker.
I have experience working in VoIP area with Asterisk and Cisco Unified Communication Manager in cell company in Kyrgyzstan. Due my duties I had a lot of tasks doing webinterfaces working with HTML, CSS, JavaScript, PHP, MySQL, MSSQL, ORACLE, postGRE.
Also it was necesseray to make ties with Windows Server 2012, 2015, Linux CentOS. Setting FTP, DHCP, TFTP servers and etc.
I am getting MBA Degree and for me very convenient option working about 2 hr per day.