Cass E. Walker
Edmond,USA
Summary
Accomplished Task Lead System Administrator at FAA MMAC with expertise in Active Directory management and advanced troubleshooting. Proven track record in classroom technology integration and team collaboration, enhancing operational efficiency by 30%. Adept at implementing federal computer security regulations and delivering exceptional customer service.
Overview
22
22
years of professional experience
Work History
Task Lead System Administrator, Sr.
FAA MMAC
Oklahoma City, OK
04.2019 - Current
- Demonstrated software and hardware operations in classrooms for instructors and end users.
- Provided onsite and virtual troubleshooting for hardware and software issues.
- Created user profiles for instructors, students, and computers via Active Directory.
- Assisted instructors with Apple iPads, configuring connections to FAA WLAN and applications.
- Developed prototype workstations for testing in classroom builds.
- Collaborated on projects involving classroom builds, hardware upgrades, and software updates.
- Configured, upgraded, and troubleshot network connectivity issues.
- Executed security checks on servers, applying necessary updates and patches.
- Install, configure, and maintain multimedia equipment for use in classrooms.
- Trouble shoot and maintain flight training devices.
System Administrator, Sr.
FAA MMAC
Oklahoma City, OK
04.2011 - 03.2019
- Demonstrated operation of software and hardware for instructors and end users.
- Provided onsite troubleshooting for hardware and software issues.
- Created profiles for instructors and students to access workstations via Active Directory.
- Assisted instructors with Apple iPads, setting up connections to FAA WLAN and various applications.
- Developed prototype workstations for classroom testing and builds.
- Collaborated with team members or worked independently on projects, including classroom builds and upgrades.
- Configured, upgraded, and troubleshot network connectivity issues.
- Administered user and computer accounts in Active Directory.
- Install, configure and maintain multi media equipment for use in classrooms.
- Trouble shoot and maintain flight training devices.
PC Consultant
Self-Employed
Edmond, OK
05.2007 - 06.2011
- Utilized software tools to recover lost data from hard drives and reset administrator passwords after system failures.
- Troubleshot desktop hardware and software issues to restore functionality.
- Configured secure wireless networks for individual clients.
- Upgraded desktop hardware to improve performance and reliability.
- Installed and configured software applications to meet user needs.
- Performed basic desktop system tune-ups to enhance operational efficiency.
- Executed removal of spyware and internet clutter to optimize system performance.
System Administrator, Jr.
FAA MMAC
Oklahoma City, OK
03.2009 - 04.2011
- Demonstrated software and hardware operations in classrooms for clients.
- Provided onsite troubleshooting for hardware and software issues.
- Collaborated with instructors to prepare classrooms for incoming students.
- Created user profiles for instructors and students in Active Directory.
- Developed prototype workstations for classroom builds.
- Executed projects, including classroom builds and hardware upgrades, independently or as part of a team.
- Configured and troubleshot network connectivity issues.
- Administered user and computer accounts within Active Directory.
Technical Support Representative
DELL
Oklahoma City, OK
08.2008 - 02.2009
- Guided customers in understanding features and options of various products.
- Provided tailored solutions to meet customer needs for consumable items.
- Troubleshot application and hardware issues via phone and remote desktop support.
- Resolved network and workstation setup and connectivity problems efficiently.
- Documented troubleshooting steps to assist customers in resolving future issues.
- Followed up with customers to ensure resolution of all reported concerns.
- Supplied expertise in maintaining operating systems for optimal performance.
Technical Support Representative
A La Mode
Oklahoma City, OK
04.2008 - 08.2008
- Guided installation of proprietary software on workstations and servers for optimal performance.
- Troubleshot application and hardware issues through phone support.
- Assisted customers in selecting tailored software options.
- Explained applications and forms to enhance software usage effectiveness.
- Resolved network and workstation setup issues efficiently.
- Provided comprehensive documentation to assist customers with problem resolution.
- Documented issue resolution steps for future reference.
Customer Service/ Technical Support Supervisor
Digital Designs
Oklahoma City, OK
08.2006 - 03.2008
- Explained product features and services to assist customers in purchasing decisions.
- Established goals and standards for customer service and production teams.
- Reviewed and evaluated performance against established goals.
- Maintained inventory records for all returned products.
- Provided technical support and resolved system issues in customer vehicles via phone.
- Processed orders, generated documentation, and received payments for domestic and international clients.
- Produced weekly reports for various departments using proprietary database applications.
- Coordinated parts purchases from vendors to ensure timely delivery.
Installation Manager
CJ’s Car Audio
Oklahoma City, OK
09.2003 - 12.2003
- Recommended product purchases to customers based on individual needs.
- Supervised installations and delegated shop responsibilities to optimize workflow.
- Established goals and standards for installation team performance.
- Managed inventory effectively to ensure availability of necessary parts.
- Utilized diagnostic tools, including digital multi-meters, to integrate equipment into vehicles.
- Delivered technical support and resolved issues in customer vehicles.
- Maintained a clean and safe work environment to enhance operational efficiency.
Education
Cyber Security Program -
Rose State College
Midwest City, OK10.2025
Bachelor of Business Administration - Management Information Systems, Operation Management and Analysis
University of Central Oklahoma
Edmond, OK12.2007
Associate in Science - Business
OKC Community College
Oklahoma City, OK05.2005
Skills
- Installing and maintaining Windows 10 and 11
- Windows Server 2019 and 2022
- Installing network equipment
- Cat 5 network cabling
- Symantec Ghosting and Windows Imaging
- McAfee Anti-Virus Software
- Custom build and install CAT 5 level network cable
- Federal computer security regulations
- Active Directory management
- Software installation
- Multi-platform support
- Classroom technology integration
- Customer service
- Data recovery techniques
- Team collaboration
- Server management
- Training and mentoring
- Scripting languages
- Advanced troubleshooting
- Backup management
- Hardware configuration
- Virtualization technologies
- Troubleshooting desktop
- Troubleshooting laptops
- Troubleshooting servers
- Troubleshooting hardware
- Troubleshooting software
- Setting up wireless networks
- Securing wireless networks
- Microsoft Office Suite
- FrontPage
- Project Management
- Visio
- Visual Studio 2005
- Adobe Dreamweaver
- Adobe Flash
- Adobe Illustrator
- Adobe Photoshop
- Linux
- Ubuntu
- Fedora
- Open Source Software
- VMware ESX
- Virtual Box
- Setting up virtual servers
- VMware Horizon View
- Virtual Desktop
- Avamar and Veeam backup solutions
Training
CompTIA A+ - Essentials and IT Technician Certified
Awards
- Certificate of Recognition
- Certificate of Appreciation
- Cisco Cyber Security Scholarship 2017
Timeline
Task Lead System Administrator, Sr.
FAA MMAC
04.2019 - Current
System Administrator, Sr.
FAA MMAC
04.2011 - 03.2019
System Administrator, Jr.
FAA MMAC
03.2009 - 04.2011
Technical Support Representative
DELL
08.2008 - 02.2009
Technical Support Representative
A La Mode
04.2008 - 08.2008
PC Consultant
Self-Employed
05.2007 - 06.2011
Customer Service/ Technical Support Supervisor
Digital Designs
08.2006 - 03.2008
Installation Manager
CJ’s Car Audio
09.2003 - 12.2003
Cyber Security Program -
Rose State College
Bachelor of Business Administration - Management Information Systems, Operation Management and Analysis
University of Central Oklahoma
Associate in Science - Business
OKC Community College