Position: VoIP Asterisk Administrator
Category: Sysadmin
English level: pre
Years of experience: 11

Technical competencies:

Level understanding of telephony dial plan design and call routing/control
protocols such as FXO, FXS, SIP, RTP, UDP, T.38, G.711/G.723/G.726/G.729, Caller ID, DID, etc.
Understanding AGI (Asterisk Gateway Interface)
Asterisk IP-PBX set up an answering machine
VoIP gateways: PSTN, GSM, Skype, Telegram

Virtualization server platforms: VMware, OpenVZ
Web hosting management: Plesk panel
Work with LAMP or LEMP stacks

Barracuda Email Security Gateway
Experience with MTA Postfix/Exim

XMPP - I have experience creating public chat services
Understanding the process of working with virtual networks (VLAN)
I can launch and configure services: VPN, NAT, DHCP, FIREWALL etc.
Knowledge of IP technology, including IPV4, IPV6 and related topics
Have experience deploying the Bitrix24 platform on Linux
Building a NAS (with RAID) NFS/iSCSI protocols
Familiarity with 802.11a/b/g/n/ac protocols
Have practical experience with MikroTik
Working practice with Utimaco HSM
Veeam software
Digium Certified Asterisk Administrator (dCAA)
More than 13 years of practice Asterisk IP-PBX.