Sign in

Manager Active Directory

Phoenix, AZ
October 18, 2018

Contact this candidate


Leroy Walters



Extensive experience with network servers, from Windows Server 2003 to 2016.

In-depth knowledge of desktop operating system support, from Windows 2000 to Windows 10 Professional.

Experience in supporting VoIP phones and in basic Cisco Routers and Switches configuration.


PC Network Support Technician III

First-Tek, Inc.

Piscataway, N.J. April 2015 – June 2018

(Under contract to Northrop Grumman Corporation, Sierra Vista, AZ)

Provided desktop troubleshooting, systems administration, and network support for over 250 end-users.

Installed computer systems, network switching, and routing equipment and local and remote locations

Provided remote support and OS image deployment using SCCM Configuration Manager.

Performed Systems Administration using Windows Server 2012 R2 and 2016 Active Directory

Configured core services for domain controllers, to include DNS, DHCP, and IIS.

Created how-to documentation for I.T. use when there none available using Microsoft Office

Received multiple awards from Senior Management for exceeding work expectations.

Strong understanding of the OSI model with respect to physical, data, and network layers.

Experience with the installation and configuration of Cisco routers and switches.

Computer Operations Manager

Navajo Nation Department for Self-Reliance

Window Rock, AZ. September 2013 – July 2014

Managed a WAN with seven geographically dispersed field offices located in Arizona, New Mexico, and Utah with over 150 end-users

Provided Cisco hardware support for the central and remote offices locations.

Performed disaster recovery and planning of DRR data center.

Recovered DSR datacenter operations to avoid data loss in a building-wide power outage.

Performed system administration using Windows Server 2008 & 2012 R2 Active Directory.

Installed and managed servers in a VM environment using vSphere.

Worked with external consultants to maintain server, switching, and routing equipment

Network Manager

Navajo Nation Office of Broadcast Services

Window Rock, AZ. May 2012 – September 2013

Took this position in an area outside of traditional Information Technology in order to gain supervisory and management experience.

Created failure recovery points for the NNTV5 broadcasting equipment as a safe fallback point.

Network Specialist

Navajo Nation Office of the Controller

Window Rock, AZ April 2008 – May 2012

Started as a Principal Information Systems Technician and was promoted to Network Specialist

Performed System Administration using Windows Server 2003 & 2008 R2 Active Directory.

Performed disaster drills to ensure datacenter continuity.

Installed new network lines for the implementation of a building-wide IP security camera system

Performed computer refreshes, assisted users with break-fix issues, and troubleshot any problems in the migration process

Senior Information Systems Technician

Navajo Nation Environmental Protection Agency

Window Rock, AZ. January 2008 – April 2008

Trained existing an I.T. employee in server builds, configuration, and deployment

Performed an immediate inventory of all departmental computer and software, and properly disposed of obsolete items.

Upgraded all end-user desktop to the then-latest Microsoft Windows operating system

Implemented a computer backup scheme for all user P.C.s in the office

Previous Information Technology Work Experience August 2007 – January 2008

Volunteer work in a hospital’s Information Technology Section working on network servers

Trained hospital IT Staff on Microsoft best practices for Windows Servers.

Installed new computers throughout the hospital and disposed of computers.

Performed an inventory of old and new computer equipment.

Installed new network lines at user work areas.

Worked as an Independent Contractor for two firms concurrently, performing P.C. warranty work


Master of Network and Communications Management (MNCM)

Keller Graduate School of Management – DeVry University

Graduate Certificate – Information Security

Keller Graduate School of Management – DeVry University

Graduate Certificate – Wireless Communications

Keller Graduate School of Management – DeVry University

B.S. Business Administration: Management Information Systems (MIS)

University of Arizona


MCSE Certification

MCSA Certification

MCTS Certification

MCP 2.0 Certification

CompTIA Security+ Professional Certification

CCNA (640-802) Training Course

CISSP Information Security Professional Training Course

Introduction to Linux Computing

CompTIA Security+ Professional CE (In Progress)

Contact this candidate