I'm a System Administrator with more than 5 years of experience on building networks, services, solutions based on Windows and Linux(corporate mail servers, routing, firewall, VPN, trunking, proxy, web-servers, etc), with solid references.
Key skills
Linux, CentOS Web Panel
Windows Server from 2003 to 2016,
Active Directory,DNS,DHCP,DFS,File&Storage Server,Security,Group Policy,IIS,Print Server,RDS, Provisioning packages
Virtualisation: HyperV, VMWare
WSUS,Windows Deployment Services (WDS)
Backup: Windows Backup, NetBackup
Firewall: Cisco ASA(L2TP/IPsec/Anyconnect/etc.), Kerio Control
VPN: openvpn, cisco anyconnect, IPSec tunnels
Office 365
Scripting: Batch scripts, PS tools, Chocolatey
Web services: IIS, WebDAV, SSL
Kerio Control, Squid, VPN, IPtables, Revers Proxy/Virtual hosts
Cloud/hosting: Azure, Amazon WS, Digital Ocean, OVH, GoDaddy, Bluehost, Siteground. CloudFlare
JIRA+Confluence (administration)
ZOHO mail
MAC OS Virtualizion
VoIP: 3cx, Twillio, Zadarma