Network Administrator

John Christopher Rosenberger 832-***-****

************@*****.***

Information Technology Professional www.linkedin.com/in/johnrosenber

ger

An effective problem solving Army Veteran with a wide range of IT troubleshooting

skills and experience.

Honor Graduate of the US Army Signal Center of Excellence as an Information

Technology Specialist with more than five years practical experience in several

information technology roles in the US Army.

Graduate of the Rackspace Open Cloud Academy “Network Operations” course.

IT Certifications

Comptia Network+

Comptia Security+

Cisco Certified Network Associate: Route & Switch (CCNA R&S)

Cisco Certified Network Associate: Security (CCNA Security)

Network Administration Skill Profile

• Experience utilizing Solar Winds Engineer’s Toolset and SNMPc Management

Console to monitor and troubleshoot network activity ensuring maximum up time for

users in Local Area Network (LAN) and Wide Area Network (WAN) settings

• Created detailed reports allowing management to have accurate “snapshots” of

condition of the network. Used reports to create and implement plans to expand and

improve existing infrastructure saving time and taxpayer money by efficiently allocating

existing resources while in hostile, foreign countries.

• Programed Voice Over Internet Protocol Phones (VOIP) using Cisco Call Manager

Express, adding and modifying phones for users in a rapidly expanding organization

• Accountable for several internal organizations to the Army; maintained strict best

business practices set by the Department of the Army to ensure that user data was

maintained at high levels of CIA (confidentiality, integrity, and availability).

• Utilized a hardware based Virtual Private Network (VPN) solution to secure network

data transmissions, ensuring the confidentiality of sensitive documents and phone calls

vital to deployed uniformed service members in remote regions of the world.

• Firewall Management, creating and modifying Access Control Lists (ACLs), Tunnels,

and Crypto Maps adding layers of defense to the organization’s Information Systems

Networks.

Experience United States Army South (ARSOUTH) Fort Sam Houston, Texas

IT Helpdesk Manager (December 2012 – November 2013)

Provided customer support in the form of technical advice and assistance in

ARSOUTH, a two star general officer headquarters assigned as the Army Service

Component Command of US Southern Command; tasked with providing a wide

range of automation, communications and information technology support to an

800 member senior headquarters supporting a fast paced multinational

operation that comprised 31 nations; facilitated critical command and control

capabilities in support of mission.

ARSOUTH DJC2 Network Administrator (Aug 2011 Dec 2012)

Selected to join a rapidly deployable communications team, which is continuously

prepared to deploy equipment used by the US Army South's Commanding General to

communicate in the ARSOUTH area of responsibility in the advent of emergency

situations (Deployable Joint Command and Control or DJC2).

Managed 4 separate Networks using Cisco Switches and Routers in a Microsoft

Windows 7 and XP Active directory environment. Duties included: moving the

equipment stacks, running and repairing CAT 5 and 6 cables, configuring switches and

routers, troubleshooting VPN and firewall issues and other data flow problems that

might arise, and providing the highest level of customer support for the soldiers of US

Army South to execute mission critical operations in Central and South America.

704th Brigade Combat Team, 4th Brigade, 4th Infantry Division, US

Army Fort Carson, Colorado

Information Assurance Security Officer (Sep 2008 – Dec

2010)

Ensured the organization’s users and computers were within compliance of the

Army's Best Business Practices and Federal Regulations to guarantee that the

data used was confidential, maintained its integrity, and was available to the

correct personnel. Led help desk team in providing customer support in the form

of technical advice and assistance to the organization’s departments, comprising of

over 300 personnel.

Network Administrator, Team Leader, Command Post Node (CPN) Team

(May

2009 –May 2010)

Directed a team tasked with the maintenance of the equipment that allowed up to

200 users on the base to communicate with other units and internationally.

Implemented and administered Cisco Catalyst Switches, Cisco Routers, Cisco IP

Phones, Windows XP Computers and Servers. Installed, programmed, and troubleshot

18 switches on our LAN in an austere, dirty environment. Additionally, responsible for

all the system administration tasks for our 200 users in the Active Directory based

Network that we used.

Fostered the personal and professional growth of the soldiers that were assigned to

team. Mentored soldiers, improving their job proficiency. Cross trained team members

in networking equipment. Coached them to provide excellent customer service to the

soldiers who depended on our ability to communicate for successful missions.

Education Rackspace Open Cloud Academy 2013

Network Operations Course

US Army Warrior Leader’s Course 2010

Noncommissioned Officer Professional Development

US Army Signal School Center of Excellence 2007 2008

Information Technology Specialist Course (732 Hours)

John Christopher Rosenberger 832-***-**** ************@*****.***

Honor Graduate

Alvin Community College 2006 2007

Associate of Arts in General Studies

Phi Theta Kappa

John Christopher Rosenberger 832-***-**** ************@*****.***

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