Colin A. Courten · colinc@cgctechnologies.com

912 Thayer Ave Suite 212 Silver Spring, MD 20910 240.396.4310

 

PROFESSIONAL SUMMARY

Over 19 years of progressive experience in the Information Technology industry with in-depth experience in designing, implementing and troubleshooting enterprise networking infrastructure. Hands on experience in design, securing, configuration, implementation and support of complex routed, switched and heterogeneous networks to ensure network availability, reliability and redundancy.

 

COMPUTER SKILLS

Software: Office2016/2013/2010/2007/2003/XP, Visio, Oracle 8i, WordPerfect, Paradox, Expert Advisor, PcAnywhere, Nwadmin, HP Openview, LAN desk, IBM Image Cast, Symantec Ghost, Symantec Anti virus GroupWise, Meta Frame, Lotus Notes, WinInstall; Tivoli IT Director, NetSupport, Cisco VPN Client, Anyconnect Winproxy, PIX Device Manager, ASDM, Retina, PC auditor, Dameware,

Languages:  C, Visual Basic, Pascal, HTML, Java, and SQL;

Operating systems: Windows 2000/ XP/Vista/Windows 7/ Windows 8/10 Novell NetWare, Dos, IOS, Linux, Solaris

Servers: Windows NT/2000/2003/2008/2011 SBS/ 2012 Data Center Server, Hyper V, Netware 5.0, Solaris 10, Linux, MS Exchange 2000/2003/2007/2010/2013 Server, Winproxy Server, IIS, FTP, DNS, Apache, Sendmail

Protocols: TCP/IP, MPLS, UDP, IPX/SPX, SMTP, POP, RDP, FTP, SFTP, TFTP, SSH, VRF,SNMP, IGRP, EIGRP, BGP, EGP, CDP, RIP, OSPF, LSA, IS-IS, HSRP, VRRP, ISL, 802.1q, 802.1d 802.1w, 802.1x,

Devices: Cisco Pix 506/515/520/525/ASA Firewalls w/firepower, Cisco1700/2500/2600/3600/3700/7200/ASA 1002/1006 Routers, Cisco 2900/3500/3700/5000/6500 Catalyst Switch, Nortel Centillion100 switch, Ethernet Hubs, Modems, Load Balancers, Accelerators, Brocade Switch, Wireless Routers 802.11abg, WAPs, Cisco Nexus 2k, 5k 7k,  MDS 9222I fiber switch Juniper M320, Brocade FCX

 

PROFESSIONAL EXPERIENCE 

Network Engineer V February 2010-Present

CGC Technologies, Inc., Silver Spring, MD

·   Support Network Operation Center for Enterprise company which include, troubleshooting, configuring, and maintenance 

·   Design and Implementation support for the Department of Labor (DOL) Trusted Internet Connection (TIC). Assisted various agencies on configuration changes and troubleshooting connectivity issues at various sites within DOL which comprises of an MPLS backbone connecting over 700 sites, connected via VRF and route using EIGRP. Assisted agency with Installation,  configuration  and  troubleshooting CISCO Nexus 7000 data center switches and ASR 1002 and 1006 routers, Configured QoS for Integrated voice Recognition system and VOIP, Assisted with DR planning, Troubleshoot EIGRP and BGP

·   Deployed and maintained Cisco Appliances including, Cisco ASA, Catalyst Switches and Routers.

·   Assess security threats, risks, and vulnerabilities from emerging security treats using Eeye Retina

·   Deployed and migrated MS Windows legacy 2003 server platform to MS windows 2012 data center platform which included Hyper-V installation and deployment of Virtual Machines. Migrated 2003 exchange to MS 2013 exchange server

·   Deployed VPN solution with Cisco ASA, using Cisco Anyconnect for compatibility with mobile devices, Mac and Windows 8 operating systems,

·   Provide technical leadership to the enterprise for the corporate Network Infrastructure by mentoring and assisting Junior and Midlevel Network Engineers

·   Perform security Vulnerability Management System (VMS) to ensure scanning is current and complete. Prepared monthly reports to detect and correct the non-compliance issues.

·   Performs incident management including prevention, detection, analysis, identification, mitigation solution and escalation

·   Conduct risk assessments and provide recommendations by security tools such as Retina, RiskWatch, Foundstone and Nessus

·   Provides Security Enterprise Management services, consulting, administration and compliance

·   Installed and configured CISCO MDS 9222i fiber switch for NAVASE

Network Engineer VSeptember 2008- November 2009

Quantum Dynamic, McCord AFB, WA

·   Design, Setup and configured tactical training lab which comprises of 12 networks, implemented ACL’s and VLANs

·   Design and implemented Cisco Laboratory environment with 15 layer 3 Devices for use of various routing and switching configuration, OSPF and BGP configuration, Used Netflow to perform IP accounting

·   Monitor Network Infrastructure with Solarwinds, RMON configured to send SNMP traps via email

·   Configured and setup Cisco 5520 ASA firewall for IPSEC VPN and SSL VPN, with Active Directory authentication using radius and CAC card for two form factor authentication.

Network Engineer VJanuary 2007-May 2008

Corporation Service Company, Mukilteo, WA

·   Support and maintain enterprise network infrastructure on a Microsoft, HP and Cisco platform

·   Optimized existing proprietary application with the build out of 6 new HP Proliant DL 500 servers for web interfacing, SQL, Microsoft 2003 servers for Exchange, with the addition of HP SAS Arrays

·   Documented proprietary application migration process using Intranet portal with input across various teams, In addition; document existing network infrastructure with the addition of added hardware using MS Visio

·   Assisted with the implementation and Deployment of HP Site scope for monitoring and managing the Network

·   Assisted with Disaster Recovery planning and implementation

·   Implemented Backup Solution with Veritas Netbackup, Brocade Fiber Switch and Adic Scalar I500 Robotic Library

·   Administration of Cisco Catalyst 4506 Switch, Cisco Pix 515E Firewall, Cisco 2610 Router, Microsoft Active Directory, MS 2003 Exchange and the installations of two Cisco Wide Area Application Servers

Network Engineer VJune 2005-Dec 2006

SMARTECH, Quantico, VA (Department of Defense)

·   Deployed to South East Asia to spearhead the implementation of a robust and redundant portable network in a desolate area for tactical training purposes. Applied the Top down Design philosophy, providing application and services (i.e. active directory, DNS, email, printers and file server), networking gear, WAN services- OSPF routing,  with the importance of the number of users at remote site and VLAN communication. In addition; documented the design of the finished network.  

·   Supports technology assessments of new communications hardware and software for the tactical environment.

·   Responsible for the servers and network infrastructure of three separate networks maintained by MCWL 

·   Deployed wireless solution with Airfortress Encryption

·   Set up ghost cast server for cloning multiple machines. Installed 15 Alienware computers for tactical simulation environment

·   Configured Cisco Pix 515 and 525 for production environment and VPN solution with Cisco VPN client

·   Created Standard and Extended Access-List on Cisco Pix 515 and 525 firewalls for outbound and inbound traffic

·   Implemented static routes for Web Servers, and Mail Servers using Cisco Pix 525 firewall

·   Constructed VLANs on Cisco Catalyst 2924, 5505 and 6509 Switches

·   Setup Trunk links for VLAN communication and Administer Cisco devices using GUI interface and IOS

·   Installed & Configured Solaris 10 OS on SUN Ultra SPArc and Veritas Backup Exec 10.0 Win 2003 Sever.

·   Installed remote agents for Netware and Windows server, created backup schedules and restored deleted files using restoration procedures, maintaining nightly backup. 

·   Created VPN solution using Windows 2003 Server Routing and Remote Access and built two DNS servers for hosting website and email.  Administered user’s accounts, shares and printers in Active Directory. 

·   Responsible for system security opening ports and creating rules on the Firewall to allow and deny traffic to LAN, DNS, WWW, FTP and VPN services.

·   Member of security team, responsible for security policies, procedures, tools and methods necessary to ensure the safety of information systems integrity, reliability, and confidentiality

·   Performed cyber security initiatives through both predictive and reactive analysis and detection and articulating emerging trends to leadership, and related groups

·   Administrated all systems/ solutions to ensure the environments were in compliance with Corporate and program level of security

·   Support Fannie Mae NOC

Network Engineer IVMarch 2004-May 2005

Innovative Technology Application, Springfield, VA

·   Configured, Deployed, maintained and the administration of Windows 2003 servers Active Directory, DNS, DHCP, IIS, FTP

·   The administration of MS Exchange server 2003 Data Storage Groups, Mailbox and Public Folder Store, checking active/disabled AD accounts, creating, modifying and hiding mail accounts, creating distribution list, performing mailbox move, site creating, deleting and maintaining public folders, Performed high-profile confidential investigations on employees for potential misuse of electronic mail(i.e. sexual harassment, breach in company’s non-compete agreement etc..). Determine and troubleshoot return/undelivered messages for incoming and outgoing email delivery

·   Migrated Windows NT 4.0 Server to Windows 2003 server, Windows 2K server to Windows 2003 server using Microsoft’s white papers and the Active Directory Migration Tool.

·   Migrated MS Exchange 5.5 Server to MS Exchange 2003 Server, MS Exchange mailboxes using Exmerge tool and the Active Directory Connector

·   Installed Norton Antivirus Corporate Edition 9.0 on Server and client workstations

·   Deployed Symantec mail security for Exchange and Microsoft Intelligent Messaging Filter

·   Configured and supported Cisco Pix 506 and 515 Firewall, Created access-list, static routes, VPN tunnels, breached device to gain access to the IOS with lost or forgotten password, and updated IOS version using TFTP

·   Setup IDS solutions using Pix Device Manager and Sniffer pro to monitor network traffic by setting various event for ICMP attacks, IP attacks, DNS attacks, RPC attacks and FTP attacks

·   Installed Veritas Backup Exec 9.1 on Windows 2003 server, created Backup Schedule, restore corrupted or deleted files from previous backup

·   Implement Intranet for IT division’s documents, Rolled out mass units of workstations using Symantec Ghost 8.0

·   Deployed Terminal Server for Remote access user windows 2K and 2003 server

·   Construct DNS Entry for Name Server Lookup, MX records, A records for www, mail, and intranet

·   Built Name Servers using Windows 2K Server for Hosting DNS, Email and Website

·   Planned and Coordinated office move with various vendors to assure minimal downtime. Prepared new location with voice and data connectivity prior to moving equipment.

·   Experience in Access Control, Windows clustering and Load balancing

·   Implemented windows 2003 cluster with 4 nodes, managed clusters using windows cluster manager

Network EngineerIIIJanuary 2003-Feb 2004  

Maxqnet Inc, Gaithersburg, MD

· Deployed and maintained Cisco 3640 Router, Cisco Catalyst 2900 & 3500 Switches, Cisco Pix 520 Series Firewall and Nortel Centillion 100 switches, and upgrade IOS of Cisco VXR 7204 Router, Configured EIGRP and OSPF routing

· Configured Cisco Pix 520 series Firewall for VPN access to network

· Established Tunnels for Site to Site connection using Cisco Pix 520 series firewall

· Created various Standard, Extended Access-List rules on Firewall for outbound and inbound traffic, and static routes

· Implemented multiple VLANs for various sites using catalyst 2700 and 3500 switches

· Administered, Installed and Configured Windows 2K Server, IIS, Active Directory, and  Exchange 2K Server

· Built Intranet for company’s technical documents

· Installed and configured Solaris 9 Server, Red Hat and Suse Linux, created user accounts, Remotely access servers using SSH, setup sendmail, created FTP Sites, new websites, email accounts, and spamassain

· Deployed Multi-Tech Voice over IP Device for production

· Rack Mounted & Configured IBM servers with Raid1, Raid5, Dual NIC and Dual Power supply

· Monitored Servers using Tivoli IT Director by creating events for different actions (i.e. bandwidth utilization, CPU utilization etc), Remotely monitored servers and client workstations using Netsupport at a centralized location

· Maintain Nightly backups using Veritas Backup Exec, Deployed and Configured Alteon Load balancers

· Moved network infrastructure to Data center, coordinated cabling of voice, data & equipment ( pc, servers, switches etc..) reconfigured router for new location/ISP, firewall 

Network EngineerIIIMarch 2000-January 2003

WEBNOMALY Incorporated; Bethesda, MD

·   Designed and Setup Local Area Network, Installed and configured Windows NT 4.0 and 2K Advanced server

·   Setup Proxy Server/Firewall for end users, Installed and configured MS-Exchange 5.5 and Microsoft Outlook Client

·   Maintained nightly backup using Backup Exec, Implemented desktop support and RAS for remote access

·   Deployed IDS sniffer pro to monitor network traffic, Migrated all desktops from Windows 98/NT to Windows 2K Pro and XP Pro

·   Configured  DHCP on NT 4.0/ 2K server for distribution of IP addresses, Spliced and assemble twisted pair Category 5 data cables

EDUCATION & TRAINING

University of Maryland Baltimore County, B.S. Information Systems Management (track: Computer Networking)

Microsoft Certified Professional (MCP) Managing and Maintaining a Windows Server Environment

Cisco Certified Network Associate (CCNA), Information Technology Infrastructure Library (ITIL v3)

DOD CLEARANCES Active Secret

 

 

 

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