Network engineer and administrator of CUCM

Requirements Higher education;
3+ years of work experience;
Experience with IP telephony systems: Asterisk, Cisco Call Manager; VoIP gateways;
Experience in configuring / administering video conferencing systems, messaging: Cisco Jabber, Cisco Telepresence, Cisco Expressway;
Knowledge of TCP\IP protocol stack;
Knowledge of OSPF, BGP, IPsec, GRE, SIP, ARP; VLAN, NAT, PBR, STP, Syslog;
Experience in administration of Cisco network L2-L3 equipment (routers, switches);
Experience in administering VPN, Firewall-systems Cisco ASA, Fortinet;
Experience with virtualization systems VMware ESXi, vSphere, vCenter.
Responsibilities Monitoring of the network, services, applications;
Maintenance of the network infrastructure in good operating condition;
Providing external access to the company's services;
Ensuring the protection and security of the network;
Search and elimination of arising problems;
Development, improvement, modernization of the network and telephony;
Interaction with providers, telecom operators;
Diagnosis of hardware and software problems;
Periodic maintenance of network equipment;
Installation of network equipment;
Installation eplacement of components, consumables;
Installation of updates;
Drawing up plans/reporting;
Backup estoration of configurations, software;
Advice/assistance to users on network and telephony problems.
Personal Qualities Responsibility;
Strong inter-personal skills;
Punctuality;
Organizational skills.