Sergey Demchuk

Sergey Demchuk Email and Phone Number

Internet and CATV service provider @
Sergey Demchuk's Location
Ukraine, Ukraine
Sergey Demchuk's Contact Details

Sergey Demchuk personal email

n/a

Sergey Demchuk phone numbers

About Sergey Demchuk

o Network hardware (Cisco Catalyst, Huawei, D-link, Mikrotik);o Network load balancer (Cisco SLB, ACE, GSS);o Network security (Cisco FWSM/PIX/ASA, Cisco IDSM, Cisco MARS, Checkpoint security gateway);o Network technologies (Switching&Routing, CWDM, STP, VPN, 802.1q, QinQ, BGP, HSRP, CARP, GePON, TCP/IP stack);o VoIP & Callcenter (Cisco CCM/CUCM, Avaya CM, Asterisk);o Unix-like OS (FreeBSD, RedHat/CentOS, Ubuntu);o Windows Server (Terminal Services, DHCP, DNS);o VMWare virtualization;o Cable television (DVB-C, EDGE QAM, transcoding, EPG, quality monitoring);o Network troubleshooting tools (Wireshark, Network Monitor, tcpdump);o Monitoring tools (Nagios, Cacti);o Web (MySQL, Apache, Perl);o Advanced knowledge of SQL, HTML, CSS;o Security policy development;o Network architecture design;o Familiar with SAN network and SAN Storage technologies;o Familiar with Active directory, DHCP, DNS, SMTP, Radius;o Familiar with cloud computing principles;o Analyzing the business and functional requirements and providing constructive feedback;o Practical experience in project coordination and technical management;o Awareness of software testing practices (QA);o Excellent organizational and interpersonal skills;o High adaptability and quick learning;o Teamwork skills and ability to work independently;o Strong analytical skills and high attention to details;

Sergey Demchuk's Current Company Details
Stargroup

Stargroup

Internet and CATV service provider
Sergey Demchuk Work Experience Details
  • Stargroup
    Cto
    Stargroup Jan 2009 - Present
    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);
  • Www.Kievisp.Com
    Owner
    Www.Kievisp.Com Jan 2002 - Present
  • Ukrtelecom
    Head Of Corporate Network Department
    Ukrtelecom Jun 2014 - Jul 2019
    - 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;
    View
  • Ukrtelecom
    Deputy Head Of It-Infrastructure Division
    Ukrtelecom Dec 2010 - Jun 2014
    - 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)
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  • Ukrtelecom
    Network&Voip Department Chief
    Ukrtelecom Sep 2007 - Dec 2010
    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
    View
  • Ukrtelecom
    Cisco Engineer
    Ukrtelecom Aug 2005 - Sep 2007
    Head of security group.Cisco 6500, 3700, Firewall Service Module, Cisco PIX, IDS/IPS, Cisco Callmanager, network monitoring, secuity policy development, design network architecture
    View
  • Ips, Motorola Student Project
    Embedded Programmer
    Ips, Motorola Student Project Sep 2002 - Jun 2003
    - Optimization and benchmarking code for the Motorola ColdFire processors;

Sergey Demchuk Skills

Cisco Technologies Firewalls Routing Security Telecommunications Voip Avaya Tcp/ip Asterisk Network Architecture Unified Communications Freebsd Cisco Call Manager Dhcp Active Directory Pix Dns Ccna Ccnp Asa Fwsm Bgp Cisco Multicast Mysql Servers Perl Tmg Isa Server Isa Dvb C Edge Qam Cable Television Digital Broadcast Linux Routers Networking Network Security Data Center Netflow

Sergey Demchuk Education Details

Frequently Asked Questions about Sergey Demchuk

What company does Sergey Demchuk work for?

Sergey Demchuk works for Stargroup

What is Sergey Demchuk's role at the current company?

Sergey Demchuk's current role is Internet and CATV service provider.

What is Sergey Demchuk's email address?

Sergey Demchuk's email address is sd****@****ecom.ua

What is Sergey Demchuk's direct phone number?

Sergey Demchuk's direct phone number is +380 44 234*****

What schools did Sergey Demchuk attend?

Sergey Demchuk attended National Technical University Of Ukraine 'kyiv Polytechnic Institute'.

What are some of Sergey Demchuk's interests?

Sergey Demchuk has interest in Travelling, Snowboarding, Cinema.

What skills is Sergey Demchuk known for?

Sergey Demchuk has skills like Cisco Technologies, Firewalls, Routing, Security, Telecommunications, Voip, Avaya, Tcp/ip, Asterisk, Network Architecture, Unified Communications, Freebsd.

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