NETWORK /WIRELESS ENGINEER, WIFI/TECHNICAL SUPPORT ENGINEER

Accomplished Network/Systems Engineer with over 15 + years of experience in design, installation, configuration, administration and troubleshooting of LAN/WAN infrastructure and security using Cisco routers/Switches/firewalls. WiFi Expert and/or Technical Support Engineer. With NOC Tire 2 support operational center /engineering experience in firewalls and security, wireless/networking, Wi-Fi, VoIP, media on demand services, CISCO, CATOS, NX-OS, Nexus 2000/5000, PIX ASA, Cisco Catalyst switches, Checkpoint, Windows 7,Windows Vista/ Microsoft Windows Server 2003/2008 and 2008 R2/Windows Mobile, Active Directory, Microsoft Windows Server Update Services(WSUS), Microsoft Exchange 2003/2008/2010, SQL database. Linux Redhat/Suse, AIX, SOLARIS, UNIX, Mac OS X, DOS, Microsoft SCOM, System Center Configuration Manager/SMS, Solarwinds, Veritas Netbackup, Trend Micro software products, Citrix, Wise Package Studio, Compaq Server Suites, Altiris Desktop Management, Symbian, Android, BlackBerry, Microsoft Exchange, SharePoint, Microsoft Mediaroom, HP, Reporting tools Eventia and others, basic scripting, networking, DNS, firewalls. Worked in various industries like Telecommunications, Production, Manufacturing, and Engineering services industry.

PROFESSIONAL EXPERIENCE

Confidential, 4/2012 - 10/2012
Sr. Network Engineer
Working with MPSL team to assist in all stages installation and maintenance in state-of-the-art voice/data network technology include Video - Streaming Media, Wireless, Telco Circuits and Transport T1/T3/DS3/OC3. My daily responsibilities were to prepare devices configuration. Attending hosting services cut over meeting over 900 company offices. Install new and upgrade Cisco routers 2811, 2921, 3925, ASR1002-5G w/ SFPs. Network Management and troubleshoot - DNS, DHCP, BGP, preffics list, Access list, IGRP, HSRP, VLAN, Infoblox - IP Management, Avaya/Cisco voice.

Confidential, 9/2011 - 1/2012
Sr. Network Engineer
The project to coordinate and responsible for migration all CISCO testing laboratory running multipurpose Voice VoIP, Video Conferencing for running effective tests solutions for various Cisco devices and software equipment which is over 360 on 26 racks networking & systems containing Cisco 6500 Switches, Linux Based high-end Servers, Storage SAN, NAS. Cisco 3700/3800 routers, 2800/2600 Router, Cisco 2950 switches, 7200 Routers and 4500 Switches, Multi service Modular MDS 9222i, Cisco Voice Gateways VG224/248.
* Configured and troubleshot; VLAN's, STP, VTP, Tranking, DNS, DHCP EtherChannels, Access Lists, EIGRP, OSPF, NAT, MPLS and static routing.
* VSXi installation on Cisco Server Chassis UCS-5108, UCS 6120xp for new product testing and development, in both a test and production environment.
* Configure and maintain a variety of modules for the 6500 Switch including; AON, NAM, Sup2, Sup720, and Switch modules for both copper and fiber.
Coordinate lab move, planned bldg power shutdown, bldg power outage issues and lab bring up. Install and administer numerous Linux solutions including; DNS, DHCP, NFS, Apache, MySQL, and a variety of Java based Cisco apps, and tools.

Confidential, 11/2010 - 9/2011
Sr. System Network Analyst.
ESC consulting company specializing in software projects consulting and technical support. Lifecycle: analysis, design, testing, deployment serves various industries: financial, brokerage, banking, insurance, health care, manufacturing, pharmaceutical, and many others. Being responsible for consulting and technical support Microsoft Windows 7, Microsoft Windows Server 2003/2008 and 2008 R2, Active Directory Domain Controller, Microsoft Exchange 2003/2008/2010, SharePoint, Linux, Unix, SQL database and other systems, networking, wireless, Network installation's and administration: Cisco IOS, Nexus OS 2000, 5000, Catalyst switches, Firewalls administration, ISDN line, Checkpoint upgrade to R80, firewall rule base revalidations and migrations, support, Cisco catalyst 6500, 7600 Series Wireless Services Module (WiSM), Cisco Wireless LAN Controller 4402
Cisco Wireless LAN Controller Modules NME-AIR-WLC8-K9 with 3845 Services Router, Cisco Catalyst 3750G Integrated Wireless LAN Controllers, Cisco Unified Communications Manager, ASA 5500 & NetScale applications firewalls configuration's, monitoring, troubleshooting. Assisting all technical environment with effective monitoring solution, Integrations of Google applications: Control the access to content by managing group membership. Wirelesses network troubleshoot and support based on CISCO Aironet 1100,1200, Cisco 1520/1522 Mesh Access Points. Maintain security and privacy with sharing permission. Installing Digital Certificates. Manage the file sharing permissions system-wide. Managing Gmail business filtering spam protection and many more. Assisting all Systems Development Life Cycle (SDLC) and supporting Web environments: site, mail, web hosting.

NOTABLE ACCOMPLISHMENTS

• Successfully integrated Amazon Cloud Connect for Microsoft Sharepoint.
• Apps integration with BlackBerry and iPhone devices.
• Implementations Microsoft Mediaroom

Confidential, 1/2009 - 11/2010
Network Security Engineer.
Confidential, is the largest provider of local, long distance telephone services in the United States, and also sells digital subscriber line Internet access and digital television. AT & T is the second largest provider of wireless service in the United States, with over 81.6 million wireless customers, and more than 150 million total customers. Being responsible for configuration, maintenance and monitoring of clients firewalls, routers and load balancers, I worked as Tire 2 engineering support, troubleshoot with a wide range of hardware devices including but not limited to CISCO, PIX ASA, Cisco NX-OS, Aventail, Nokia, Checkpoint NGX (R65-R80), Provider-1 and many others. In my work I've utilized various software products such as Cisco Works, Nessus scanner, Lotus Notes and many other databases, Remedy, ticket management MAXIMO, R1 and others. Installing Session Initiation Protocol ("SIP") and Gateways administration, Performing network security packets scanning using capture tools Wireshark to analyze to identify network problems. Manage spanning tree network, 802.1q trunking and VLAN, Proxies and VPN, Quality of Service, Cisco Unified Communications Manager, Manage the network scripting using bash to perform some automated tasks. Responsible for life cycle and End of Live networking devices, Performing network security audit, Service Activation and Deactivation, Incident Responses. Assisting all Systems Development Life Cycle (SDLC), Vulnerability Scanning Assist team leader with service planning and maintain PCI network security documentation, procedures and processes to improve service delivery and reporting. Work with team on-call rotation.

Confidential, 04/2007 - 12/2008
LAN and Firewall ENGINEER.
Confidential, the world's largest multinational computer technology and consulting corporation with over 338,000 employees and over 170 offices worldwide. At IBM Global Services Delivery Center I administered firewalls, switches, routers and load balancers for Deutsche Bank, one of the largest clients of IBM and one of the largest financial institutions in the world. Being responsible for Tire 2 support for configuration, maintenance and monitoring of client's firewalls, routers and load balancers I worked with a wide range of hardware devices including but not limited to CISCO Switches and routers, PIX ASA Firewalls, Checkpoint NGX R62/R65/R70 Provider- 1, IBM xSeries, Sharepoint administration, Foundry Server lon and others. In my work I've utilized various software products such as IBM Tivoli Enterprise Console, System Center Configuration Manager/SMS, SAProuter, various HP and Dell, AIX servers and others include Bralde Logic and CVS, Assisting all Systems Development Life Cycle (SDLC) and supporting Web Applications, Microsoft Active Directory Domain controller, reverse-proxies, socks and many others. Managing and configuration backup tool for Microsoft Exchange Netbackup, storage devices SAN. Using network security analysis tools Wireshark, TCPdump, to sniff traffic, troubleshoot devices and firewalls. The position required from me extensive work with low level network protocols management, security tasks such as defining and managing ACLs, hands-on working with advanced network technologies such as virtual private networks, tunneling, remote access and management, demilitarized zones, etc.

Confidential, 05/2005 - 04/2007
Network/System Wireless ENGINEER.
In the Confidential, I was employed as a Network/System Wireless ENGINEER. I submitted a proposal to hotel management to create and set up Wireless Internet Access for hotel guests using wireless technology performing site-survey and analyzing signal spectrum using devices CISCO Aironet 1100,1200, Kyocera KR1, KR2, WiMAX Super Picocell, TippingPoint Intrusion Prevention System (IPS), some area require Cisco repeaters. My idea was accepted and I designed and implemented the system. I also provided technical support and troubleshooting the MS Access database, systems and networks for guests who were using wireless Internet access. Another part of my job was configuring and managing an IP video monitoring and security control system that used media-on-demand technologies. Servers decommission, Server modification and upgrade, Hardware support, backup-streaming solutions.
Providing Technical support for Microsoft Windows 7, Microsoft Windows Server 2003/2008/Microsoft Exchange 2003/2008/2010, Active Directory, Sharepoint, Linux, Unix, SQL database and other systems and networking. Network Monitoring and data acquisition with TCPdump, Wireshark, many others.

NOTABLE ACCOMPLISHMENTS

• I configured a sophisticated billing tool with IP traffic and access time accounting. The billing tool used specific hardware, such as an invoice printer. The receptionist could easily use one-touch processing to print the invoice. It contained order details, network access credentials and WEP keys. At the time of introduction, the idea was unique for the hotel and it significantly increased the rating and profits of the "Obolon" hotel.

Confidential, 03/2003 - 05/2005
Network Architect/support engineer
Confidential, is one of the leading anti-age clinics. In UNK I designed and deployed a Gigabit Ethernet and 54Mbps Wi-Fi network as well as a 100 Mbit Ethernet routed network. A heterogenic environment was set up. Platforms included: PC, Solaris, Apple Mac, Microsoft Windows 2000, XP, Vista, Microsoft Windows 2003, Active Directory, supporting windows domain controller, Mobile Devices, and Specific Medical Devices.

NOTABLE ACCOMPLISHMENTS

• Successfully established a dedicated terminal server to make ERP software available to multiple users in distributed environment.
• Specific medical hardware was successfully configured and connected to interact with traditional PC hardware.

Confidential, 05/2003 - 05/2005
SYSTEM AND NETWORK Engineer.
Confidential, is a Christian Mission center. Ministers serve in different locations and need reliable access to internal network resources. I deployed a secured VPN solution along with POP3/IMAP/SMTP/WebMail servers and a Caching Proxy server, Perform the migration Mysql database,M backup database, build SQL queries to import/export data to My SQL. Backups and imaging systems. Network resources were secured by a hardware Cisco PIX ASA firewall. Technical support for local and remote include Microsoft Windows 7, Microsoft Windows 7, Microsoft Windows Server 2003/2008/Microsoft Exchange 2003/2008/2010, VMware VSX, Linux, Unix, Analyzing network problem with TCPdump, and other systems and networking.

NOTABLE ACCOMPLISHMENTS

• Successfully Secured Wi-Fi was set up to be permanently accessible from conference rooms.
• VoIP solution was implemented to allow inexpensive communication between distributed offices.

Confidential, 02/2001 - 05/2003
SYSTEM AND NETWORK ADMINISTRATOR
Confidential, is a State accredited theology school. It has several computer classes and a distributed campus network. In Kiev Christian University I was employed as the System and Network Administrator. The distributed network model I designed consisted of two subnets (teachers and students rooms). The two subnets were secured in a one-way limited access (i.e. teachers have access to students subnet but not vice versa). The whole network was integrated into Active Directory Domain. A Windows Server 2000 was the Domain Controller, Server decommission, Server modification and upgrade, Hardware support, backup-streaming solutions.

NOTABLE ACCOMPLISHMENTS

• Successfully performed upgrade and migration to Windows Server 2003 Active Directory, ISS, VMware, Exchange server 2003.
• Successfully set up a FreeBSD based server to allow secured access from both subnets to High Speed Internet over a wireless link. The Unix, Linux server also featured email (SMTP/POP3/IMAP/WebMail) and proxy server.

Technical and relevant skills

Operating Systems: Windows Vista/Windows Server, Windows Mobile, Linux, CISCO IOS, UNIX, Mac OS X, DOS, PalmOS, Symbian, Android, iPhone OS.
Other Software: IBM Tivoli Enterprise Console, IBM Tivoli Netcool / OMNIbus, SAProuter, SSH, EotS, Microsoft Office, Adobe photo shop, Illustrator, Indesign, Power Quest Drive Image, Norton Ghost, ZoneAlarm, McAfee Antivirus, Norton Antivirus, Symantec antivirus, Winternals software, VMWare, VirtualPC, MDaemon, Agnitum Outpost, PuTTY, Solarwinds, Kiwi, Network Monitoring System, CVS, SQL database.
Technologies: Wireless Gateways Networking, Wi-Fi, TCP/IP, UDP, xDSL, ADSL, SHDSL, ISDN, Ethernet, Directory Service, SSH, DNS, FTP, HTTP, Email, SMTP, POP3, IMAP, V.32, V.32bis, V.42, V.42bis, V.90, V.92, RS-232, NAT, VPN, 802.11a, 802.11b, 802.11g
Networking (TCP/IP stack, routing, Communication protocols, Link-Level protocols, Modems, High-Speed Internet access, LAN/WAN, Physical cabling, Network planning and design, Troubleshooting)
Network Hardware (CISCO Routers, CISCO PIX Firewall, CISCO Catalyst Switches, Check Point Secure Platform Pro, Aventail, Nokia Firewall, Tipping Point Intrusion Prevention System (IPS) basic)
Security (Firewalls, VPN, DMZ, Tunnels, Intrusion detection and monitoring, CISCO, DMZ, ACL)
Wireless (Wi-Fi, 802.11b, 802.11g, WEP/WAP, Bluetooth, GPRS, Roaming, Wireless Security)
Specific Hardware (Broadband routers, Modems, CISCO Hardware Firewalls, Wireless Routers, Access Points, Billing Hardware, Medical Hardware)
User Management (Active Directory, Microsoft Windows Domain Controller, Workgroups, Billing Systems)
Internetworking (NAT, PAT, Proxy Access, FTP, Email, Traffic and Bandwidth Accounting, User Management and Auditing, Messaging Solutions, Sniffing)
Protocols (TCP/IP, UDP, SSH, FTP, HTTP, SMTP, POP3, IMAP, DNS, STP, RSTP, IPSec, LWAPP, RIP, EIGRP, OSPF)
System Architecture (PC Hardware, Apple Mac Hardware, Pocket PC, Windows Mobile, Symbian, Palm OS, Android, Blackberry, Mobile Communication Devices Hardware Diagnostics, SCSI, RAID, Troubleshooting and Upgrade)

Bachelor of Science
0"Kvazar-Micro" Teaching Training Centre, Microsoft Training "Implementing and Supporting Microsoft Windows NT Server" MICROSOFT CERTIFICATIONS (MCP ID: 2178091): Microsoft Certified Professional (MCP) in Microsoft Windows NT Server and many others IBM internal courses: Cisco Network Concepts, Cisco Network Support, Network Security, Network Technical Support, Check Point Firewall-1 NG Administration, Voice over Internet Protocol (VoIP), MS Windows Server 2003 Administration, MS Windows 2000 Desktop Administration, xDSL Technology, Computer Technical Support, Computer Electronics.