David Ahrens

Network Engineer / Administrator

                                                                  

 

 

Professional Summary:

A 25+ year successful background within the Information Technologies (IT/IS) field; including network engineering, administration, security and support, project leadership, development, installation, end-user training, and system security within commercial, governmental, educational, military and small business environments.  Excellent attention to detail and problem solving skills have helped make me successful in the industry.  Along with my ability to learn new technologies quickly and adapt. Due to the secure nature of  some my previous positions I have previously maintained a secret security clearance.  

Technical and Professional Skills:

· Network Engineering	· Network   Administration	· Network   Security	· Network & System Technical Support	· Cisco Routers & Switches -  HP Switches	· Cisco Pix Fire Wall & Cisco ASA	· Cisco VPN Concentrators
· Cisco IDS Appliance	· Cisco Wireless Lan Controllers	· Cisco Wireless Access Points	· Dell & HP/Compaq servers	· HP & Overland Tape libraries	· HP Network and stand-alone Printers	· Dell / HP / Compaq PCs & Laptops
· TCP/IP,IPX/SPX  & Appletalk prots	· Windows 2000/2003 AD	· Windows NT 4.0 & 3.51	· Novell 5.0 and 5.1	· Lucent Tech    VitalQIP IP management	· MS DHCP	· MS DNS
· MS IIS 4.0 & 5.0	· Exchange Server 5.5	· BackupExec 8.6 and 9.1	· Cisco Network Comp MGR / HP Network Automation	· CiscoWorks 2000	· What’s UP Gold pro		· Terminal Services / Remote Desktop
· Remote  Ad-   ministration	· PC Anywhere	· VNC	· Windows XP	· Windows 2000 pro	· NT 4 workstation	· Windows 95/98
· Windows 3.11	· DOS 3.3 to 6.22	· Mac OS 6.03 to 9.1	· MS Office Suite	· Internet Explorer	· Netscape Comm & Mess	· Lotus
· Wordperfect	· Flk OneTouch Lan Tester	· Fluke Optiview Pro Lan meter	· Weitek TP cable tester	· TP cabl punch & crimp tools	· Fiber Opt connector Install	· Fiber Optic Cable Testing

Education:

NEW HORIZONS, Mechanicsburg, PA                                                                                   2007

· MCSE 2003 studies   -   Training and testing for the MCSE certification.

MENTOR TECHNOLOGIES, Annapolis, MD                                                                        2003

· Advanced Pix firewall configuration   -   Completed a week long course.

MENTOR TECHNOLOGIES, Annapolis, MD                                                                        2000

· Cert: Bldng a Cisco Multi-layer Switched Net - Compl a week long prog of study and hands-on testing.

TECHNOLOGY TRAINING CONSORTIUM, Bethesda, MD                                                            1998

· Microsoft Certified Systems Engineer (MCSE) - Compl  training and testing for my MCSE cert in NT 4

     · Microsoft Certified Professional + Internet (MCP+I) – Additionally trained and tested in IIS

PRINCE GEORGE’S COMMUNITY COLLEGE, Largo, MD                                                            1996

     · B.S. Degree studies: Computer Science  -  Would like to complete when I have the time.

CONTROL DATA INSTITUTE, Arlington, VA                                                                                   1989

     · Cert:  Computer Technologies -  Completed 910-hour program

Employment Summary:

DHL IT SERVICES GBS / EXEL LOGISTICS, Mechanicsburg, PA                                    10-13 to Present

(Leading Contract Logistics Provider)

  JFC GLOBAL STAFFING, Mechanicsburg, PA                                                                     11-11 to 10-13

(An IT workforce solution provider)

    Senior Network Engineer

·      Provide network engineering and support for a large international lan/wan environment. Including multiple local and international Corporate Data Centers. Responsible for the design, purchase, configuration, and support for routers and switches in the large multi-national lan/wan environment including mpls, frame-relay, atm, IPsec vpn.

·      Provide project mgmt and complete network design solutions including network diagrams, wan connectivity , network hardware requirements , Vlan and IP allocations .  Also responsible for implementation of network design including ordering hardware, configuration, shipping to location, and working with 3^rd party vendors for installation.

·      Gained experience with network analysis through ManageEngine Netflow Analyzer, Solar Winds Orion, additional experience with network monitoring with What’s UP Gold, and Cisco Works LMS

·      Worked with Cisco Nexus 7K, Nexus 5K, and the 2248 fabric extender;  Additional experience with 6500 L3 Chassis, as well as the ASR1002&1001, 7200, 3900, 2911, 1921, 891, 1811 series routers; 3750, 3560, 3550, 2960 and 2950 series switches.   Gained additional experience with BGP, EIGRP, OSPF routing protocols as well as Network Address Translation, Access Control Lists, QOS, Hot Standby Routing Protocol, EtherChannel, VTP and Trunking,

  HP ENTERPRISE SVCS (HPES) / ELECTRONIC DATA SYS (EDS), Carlisle, PA            09-07 to 11-11

(A Global Business and Technology Services Company)

MDI GROUP, Carlisle, PA                                                                                                         11-06 to 09-07

(An IT workforce solution provider)

    Infrastructure Analyst

·      Provide network engineering and support for a large Corporate and Retail Lan / Wan environment .  I am currently responsible for configuration and support of the routers, switches, bridges, and access points for the corporate as well as retail lan environments.  Additionally, I support the wan environment, including frame-relay, mpls, and atm.

·      Provide engineering solutions and advice for network projects, via team and singular efforts, being conducted on the corporate and retail networks.  Including network hardware and software upgrades, redesigns, security implementations, and wireless solutions.

·      Provided Network Security implementation and support utilizing Cisco’s ASA appliance and Cisco’s IOS firewall solution. 

·      Provide wireless support in the retail and corporate environments utilizing Cisco’s  access points and bridges. Along with supporting traditional autonomous wireless solutions I have gained experience configuring and supporting Cisco’s Wireless Lan Controller solutions in control of a lightweight wireless network including a large scale autonomous to lightweight migration utilizing the Cisco 5508 wireless lan controllers.

·      Supporting the current IP Telephony rollout to the retail and corporate locations utilizing Verizons ‘Best Solution’. Responsible for the configuration, implementation, and support of the first retail rollout of Cisco VOIP utilizing the Call Manager Express solution. 

·      Gained experience with network monitoring, configuration and support via HP Network Automation, CiscoWorks Network Compliance Manager,  Cisco Security Manager, and Cisco Mars appliance.  Along with additional experience with Cisco Secure ACS , and Cisco Works.

·      Gained experience with IP management, DNS, and DHCP support for a large Wan environment utilizing the Lucent Vital Qip software solution.

·      Worked with Cisco 7200, 2821, 3620, 2600, and 1751 series routers; Cisco 6500, 5500, and 4500 series chassis switches; 3560, 2960, 2950, and 1900 series switches; HP 2610, 2910 series switches; IBM and 3com hubs.  Gained experience configuring and supporting BGP and OSPF routing protocols along with additional experience implementing and supporting the EIGRP routing protocol. Gained experience with the IOS firewall solution including the implementation of ACL’s ,stateful inspection, and ids/ips.  Additionally worked with MPLS, Frame-relay, ATM, Multilink, Hot Standby Routing Protocol, Trunking, EtherChannel.

UNIVERSITY OF MARYLAND SCHOOL OF MEDICINE, Baltimore, MD                       04-00 to 11-05  

(A top school of higher learning specializing in the medical profession)

   Network Control Specialist

·      Provided Engineering and Administration for the School network infrastructure.  Including installation, configuration, support, and monitoring of the School Routers and Switches; Installation, configuration, administration, support, and monitoring of the School servers in a Windows 2000 / 2003 Active Directory and Novell environment

·      Provided and maintained Network Security by configuring and supporting the Pix firewall and Cisco Intrusion Detection appliance.  As well as configuring and supporting network remote access via Cisco VPN concentrators.

·      Assisted with the support of the School email system. Including creating and supporting the School organization and user mailboxes.

·      Installation, configuration, and support of the School Backup Solution software and hardware. Including  scheduling daily, weekly, and monthly backups; Installing, supporting, and maintaining the school tape libraries; planning and maintaining necessary SDLT tape inventory as well as documenting and storing tapes offsite.

·      Gained CCNP certification; Experience with Cisco Catalyst 6500, 5500, 4500, 3550 and 2950 MLS switches; 1800 series routers; and also 3com hubs.  Gained experience in the configuration of EIGRP and RIP routing protocols, Hot Standby Routing Protocol, Network Address Translation, Access-Control lists, Frame-relay, DHCP, Trunking, and Ether-channel.

·      Gained experience with Dell PowerEdge and HP/Compaq proliant server hardware. AD 2000/2003, Novell 5.1, DNS, DHCP, WINS, Veritas BackupExec, Exchange 5.5, Symantec AV, Network Monitoring and Troubleshooting.

SOFTECH INTERNATIONAL, Minneapolis, MN     06-99 to 03-00

(A leading personnel outsourcing firm, specializing in IT/IS professional support and/or contract consulting; primarily technical support and/or contract consulting within Gov, manuf, and comm environments)

     Information Systems Specialist     -     SRA International, Fairfax,VA

(A leading supplier of advanced level computer personnel for many government contracts and private sec       tor consulting)

·      Provide automation/network communication and connectivity solutions, installation, setup, end user training/support and technical resolutions to routine and/or or unique integration problems

·      Also run pilot tests; provide technical solutions to problem areas; finalize rollout procedures and execute programs, which ensure smooth internal/external operations

·      Participate in the updates and modifications of systems performance/operation manuals, supporting end-users and any future technical problems.

·      Directly involved in a team pilot installation, configuration, troubleshooting, testing, scripting and documenting the Internal Revenue Service (IRS) infrastructure in preparation for Y2K and an upgrade of their Email System; servicing up to 6 servers/6 workstations (LAN/ WAN; Windows 95/98/NT) in preparation for implementation nationwide.

·      Directly involved in the installation, configuration and testing of a new IRS office Anti Virus and Backup Software System.

·      Gained CCNA certification for routing and switching; Hands-on experience with MS NT Server 4.0, MS Exchange Server 5.5, Internet Inf Server 4.0, Norton AV for NT, Norton AV for Exchange.

COMMUNICATION TECHNOLOGY, Herndon, VA     02-97 to 06-99

(A professional/technical employment outsourcing agency)

Information Assurance Analyst (01-99 to 06-99)

·      Analyzed the computer systems security posture of various Defense Information Systems Agencies (DISA) and Dept. of Defense (DOD) sites; included 100’s of network system servers/workstations and stand-alone PCs; reported to the company V.P.

·      Handled the systems security testing, analyses and issuance of Accreditation Letters per new standards of operation presented by the DISA; and/or pinpointed necessary site upgrade/modification requirements and how-to procedures. 

·      Gained experience in Paradox, Form Flow Filler and additional experience in MS Word and Excel.

Information Management Area Technician (05-97 to 01-99)

·      Technical installation, setup and testing of multiple network hubs (LAN) for a major multi-level military medical center and the Pentagon.

·      Installed, connected and tested CAT 5, fiber optic and coaxial cables, outlet boxes, and conduits. 

·      Installed and setup cabinets, cable trays, cable racks, patch panels, concentrators, system cards and power supplies.

Systems Analyst (02-97 to 05-97)

** Other empl. not listed include Senior Technician and Customer Support Specialist for Rental Computer Company; Technician for Mainframe computer refurbisher. 

Other Professional Interests / Affiliations:

*Church Council Member (materials management and special event planning), 1998 to present

*Member/Chairman, Demolay (young professional leadership association), 1985 to 1997

 

Professional references and additional job history available upon request.