Systems and Network Administrator
Resume:
Bret Caswell
Vacaville, CA *****
Phone: 707-***-****
Email: ****.*.*******@*****.***
IT SYSTEM ADMINISTRATION
Highly trained, tech-savvy professional with extensive experience in a fast-paced IT customer service environment. Experience troubleshooting entire infrastructure, including group policy, network, storage, accounts, systems, and attached devices. Expert at innovating processes to automate fixing systems and vulnerabilities remotely. Excelled at adapting to technologies used for each assignment. Proficient in:
Active Directory BMC Remedy ticket system
Communications security Commvault backup
Directory Resource Administration Dynamic Host Configuration Protocol
Dynamic Naming Service Group Policy
Hardware install & troubleshooting McAfee ePO server
Microsoft Office suite Network administration
Patch management Print servers
Scripting Server administration
Smart card troubleshooting Software install & troubleshooting
Symantec NetBackup System Center Configuration Manager
VM Ware suite Windows imaging
Windows from XP to 10 Windows Server from 2000 to 2012
PROFESSIONAL EXPERIENCE
Travis Air Force Base, CA 09/2016 - Present
Section Chief, Wing Cyber Security Office and COMSEC
Validated and approved authority to operate for all systems, attached devices, and architectures that are part of network. Implemented/validated security controls. Managed multiple projects from both shops.
Automated 199,510 form conversions to pdf, saving 9,975 man hours. Won Team of Quarter.
Chaired certification and accreditation for SIPRNET and NIPRNET enclaves of 9,000 systems; implemented and validated security controls to ensure compliance.
Secured 3,300 systems with known vulnerabilities by innovative design of automated patching process. Obtained lowest average system vulnerability index seen to date (1.29)!
Identified 1,200 workstations missing 32 bit Java; created batch file to install remotely.
NCIA Northwood, United Kingdom 04/2013 - 09/2016
Core Systems Technician
Administered and troubleshot System Center Configuration Manager (SCCM), Active Directory (AD), group policy infrastructure, VM Ware, Storage Area Network (SAN), print servers, ePO server, NATO Standing Naval Forces (SNF) systems, Windows Server Update Services (WSUS) server, and Windows operating system images for base. Worked with project management to implement ITIL framework.
Authored smart card logon self-help guide, enabling users to fix 90% of smart card issues.
Identified cause and fix for blue screen during startup for 40 computers with failed patch install.
Reduced imaging time 80% through boot to USB thumb drive with automated OS loading.
Eliminated critical intelligence system down time through automated after-hours patch installation via Systems Center Configuration Manager.
Increased unmanaged McAfee detections 130% by configuring DHCP server as rogue sensor.
Edwards Air Force Base, CA 10/2008 - 03/2013
Section Chief, Network Operations
Supervised 2 personnel in performing problem management function; worked with users and technicians to identify, troubleshoot, and resolve large scale issues. Served on Configuration Control Board (CCB); reviewed, validated, and briefed leadership on system changes as required for mission accomplishment.
Worked with medical group to upgrade servers and medical devices and test patches before deployment on critical medical systems.
Hand picked to perform VIP operating system upgrades for Windows Vista migration team because of superb customer service skills. Won team of the year.
Developed inactive and rights violation scripts for active directory infrastructure of 8,000 users, 12,000 groups, and 8,200 computers automating 200 man hours per month.
Configured and tested group policy settings for 2G wireless; secured WiFi with smart card logon.
Saved 1,800 hours by modifying System Center Configuration Manager task sequence to restore user rights to migrated documents. Won team of the quarter
Ramstein Air Base, Germany 09/2004 - 09/2008
Manager of Configuration Management
Supervised 2 personnel providing tier 2 trouble ticket resolution. Served as night shift supervisor for Sather Air Base help desk. Responsible for troubleshooting problems with Storage Area Network (SAN) access, Distributed File System (DFS) servers, files, backups, data restorations, Active Directory, administrative accounts, Directory Resource Administration (DRA) servers, alternative token smart cards, Microsoft Outlook mailboxes, Blackberry server and accounts, and remote access VPN server.
Saved 2,000 man hours per year via automated discovery and purging of unauthorized and inactive files. Selected as alternative solution to $85,000 software purchase.
Identified backup malfunction to save $7,800 by reclaiming 140 tapes marked as corrupt.
Secured 270 admin accounts and 98 PKI servers with smart card logon. Restricted web server access via IIS settings. Led to base winning best large communications unit.
Supported 6 general officers in Baghdad: started automated user data backups and troubleshot network, software, and hardware install/problems, including audio visual and printers.
EDUCATION
MS in Computer Science from American Sentinel University - 2015
AS in Information Systems Technology from Community College of the Air Force - 2002
BS in Chemical Engineering from Purdue University - 1995
PROFESSIONAL DEVELOPMENT
CISSP – 2007
MCITP Enterprise & Server Admin - 2008
Achieving ITIL Foundation Cert – 2014
Certified Specialist in MS PowerShell - 2015
Windows Server 2012 Introduction – 2015
PowerShell: Automating Admin Tasks - 2015
VM Ware 5.5 Configure and Manage – 2016
SCCM: Concepts and Administration Intro - 2017
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