Sergey Demchuk Email & Phone Number

Украина

o Network hardware (Juniper MX, Fortinet, Cisco, D-link, Huawei, Ubiquiti, Mikrotik);o Network technologies (Switching&Routing, STP, 802.1q, BGP, GEPON, TCP/IP stack);o Corporate VoIP (Asterisk, GSM Gateway, SIP Trunks, IVR).o Cable television (DVB-C, EDGE QAM, transcoding, EPG, monitoring);o Unix-like OS (FreeBSD, RedHat/CentOS, Ubuntu);o Software routers (FreeBSD - ipfw, pf, nat, accel-ppp, radius, billing integration);o High availability (HSRP, CARP, Mysql replication, BGP traffic engineering);o Network troubleshooting tools (Wireshark, Network Monitor, tcpdump);o Web & scripting (MySQL, Apache, Perl);o Network architecture design;o Network monitoring;o Communication with RIPE and LIR;o Online payment integration (payment cards and self-service kiosks);

- Enterprise WAN (near 2000 remote sites);- Data Center Networking (6 pods);- Data Center Security (Cisco, Juniper, Checkpoint);- Data Center high-availability (LoadBalancer);- SDN - Software Defined Network (Cisco ACI, VMWare NSX);- Infrastructure consulting;

- Technical management of building and upgrading core, distribution and access level in 6 datacenters around country, network security services and interconnect improvement;- Technical management of upgrading and rebuild enterprise WAN (near 2000 remote sites);- Design and implementation of DMZ;- Technical management of implementation contact center for company customers (400 seats, 1200 agents);- VoIP technical lead for UEFA Euro 2012 in Ukraine (22 locations and 1000 users);- Implementation Helpdesk for internal IT;- Video surveillance project for 80 sites;- Implementation Enterprise VoIP for 400 users;- Support of implemented projects;- Consulting in many other enterprise projects (network, security, linux, VoIP, IT-infrastructure)

Head of communication sector.Head of security group. Cisco 6500, 3700, Firewall Service Module, Cisco PIX, IDS/IPS, Cisco Callmanager, secuity policy development, MS ISA 2006, Active Directory, Microsoft Exchange 2007, Corporate Symantec Antivirus, MS Office Communicator 2007, Avaya Contact Center

Head of security group.Cisco 6500, 3700, Firewall Service Module, Cisco PIX, IDS/IPS, Cisco Callmanager, network monitoring, secuity policy development, design network architecture

- Optimization and benchmarking code for the Motorola ColdFire processors;