Andrey Zakharov

Experience

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  Linet(Wireless ISP, Kazan )

  Aug 2003 - May 2005

  Network and System Administrator

  * Responsible for the installation and upgrading process for all network devices;* Configure Cisco, Linksys, ZCom Wireless devices;* Setup and support Linux, FreeBSD, W2K3 operation systems;* Maintenance services including mail (CommuniGate Pro Mail Server), web-hosting(apache, IIS), DNS (bind), authentication/accounting (FreeRADIUS), FTP, DBMS(MySQL, PostgreSQL),Billing, and network monitoring software(Castle Rock SNMPc);

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  TRK TVT Tatarstan

  May 2005 - Jan 2010

  Sr. Network Engineer

  * Lead team of network engineers to design and maintain service provider network;* Perform lab testing to verify the functionality of various vendors equipment;* Responsible for performance tuning, load balancing to provide cost effective solutions; * Setup and troubleshoot for:IGP protocols(OSPF, EIGRP, IS-IS, RIP), BGP protocol: IPv4, VPNv4, MPLS L3VPN(VPNv4, CsC),L2VPN(PW,VPLS), RSVP TE. Multicast environment: routing PIM, L2 access IGMP-snooping, MVR;* Design and maintain different subscriber access models: PPPoE, PPTP, Juniper service manager, Cisco ISG, HuaweiDAA, Ericsson RedBack RSE;* Deploy and support network security issues: Firewalls, IDS, IPSec;* Configure and troubleshoot Cisco Routers(7600(WS, ES line cards), 7200, ISR's),Mikrotik RouterOS,Juniper E-Series, Ericsson RedBack, Huawei.Configured Cisco(6K, 3750, 3500, 2900),Huawei/H3C, D-link, Edge-Core.Cisco 53xx, 5400 media gateways.Cisco PIX/ASA firewalls; * Setup and support auxiliary services: DNS (BIND), RADIUS(FreeRADIUS, SecureACS), TACACS+(Secure ACS), and system/network monitoring software(Nagios, Cacti, Castle Rock SNMPc); Show less

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  ICT center of the Republic of Tatarstan

  Jan 2010 - Mar 2019

  Sr. Network Engineer, Team Leader

  * Lead team of network engineers to design and maintain Tatarstan government MPLS-based network; * Re-engineering of network design and implementation to meet increasing customer demands;* Develop and verify network and data center infrastructure design for huge public events; * Design, proof of concept, deploy and troubleshoot of MPLS carrier grade network based on various vendors equipment;* Design, proof of concept, deploy and troubleshoot of data center fabrics and server load balancing solutions; * Design, proof of concept, deploy and troubleshoot of security solutions: firewalls, IPS/IDS, various VPN techniques;* Launched DDoS prevention systems;* Implemented Autonomous System multi-homing and KZN-IX membership;* Implemented LIR registration and internet number resource transfer procedure;* Received In-depth experience in using Juniper/Cisco products; Show less

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  GDC (Fujitsu preferred supplier of Services)

  Apr 2019 - Jan 2020

  Lead Network Engineer

  * Data centers support:* Firewalls, high availability clusters, and firewall virtualization;* Application delivery, advanced server load balancing;* Data center fabrics, data center interconnect;* ITSM;

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  ICT center of the Republic of Tatarstan

  Feb 2020 - Jun 2020

  System Architect

  * Design/Redesign of Data Center and IP/MPLS WAN networks; * PoC events; * Advanced changes and troubleshooting; * Consulting for tech staff;

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  I-Teco

  Jul 2020 - Oct 2020

  Lead Engineer

  * DC IP-fabric design; * Analysis of customer's infrastructure; * Creating technical documentation;

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  QuadraNet Enterprises, LLC

  Mar 2021 - Jun 2021

  Senior Network Engineer

  * Maintain the existing Datacenter networks in the US and EU; * Service deployment, complex troubleshooting of DC network; * Planning, and implementation of infrastructure upgrade/migration procedures;* Interaction with service providers in order to setup/maintain peering relationships, IP transit, and traffic management; * Recruitment, training of staff;