Position: System administrator
Category: Sysadmin
English level: pre
Years of experience: 11


Skills
- installation and administration of Windows servers 2003-2019, Active Directory, WSUS, group security policies.
- installation and administration of Linux servers and workstations (CentOS, UBUNTU, etc.)
- network knowledge and configuration of switches, routers, gateways, etc.
- experience with Desktop Central (Remote Control, sending updates, collecting statistics)
- experience with Microsoft Office 365 (Exchange Online, Azure Active Directory, Teams, Sharepoint sites)
- installation and administration of VMware, Hyper-V hypervisors.
- installation and administration of NAS Samba, Nextcloud, Seafile file storages.
- experience with various hosting, Google Workspace, VDS/VPS servers.
- installation and configuration of Asterisk + FreePBX telephony server
- understanding of the principles of SSL certificates: regular, multi-domain, wildcard, let's encrypt. Auto-renewal and configuration of Reverse Proxy for multiple domains/subdomains.
- data backup and recovery systems (Raid arrays of different levels, Acronis, synchronizers, etc.)
- administration of VPN servers (OpenVpn, L2TP/IPsec, Wireguard)
- knowledge of computer and server hardware, fault diagnostics, block repair.
- setup and maintenance of terminal servers.
- knowledge of TCP/IP, DNS, DHCP, SMTP, IMAP, VPN, FTP, RDP, SSH, SMB, etc.
- skills in administering mail servers Microsoft Exchange 2007-2019, Kerio, Postfix/Dovecot, etc.
- I have skills in building cloud infrastructures from several servers and migrating data to the cloud.
- I study devops practices, I am familiar with docker and git