Senior Systems Administrator

• Nov 2022 - Present

Defensive Cyber Operations Manager

• Jul 2021 - Present

- Direct maintenance and operations of elastic stack SIEM- Oversee security operations for network and host analysis- Manage incident reporting for critical mission systems- Develop standard operating procedures for F-16 cyber defense- Provide risk assessments and recommended mitigation strategies for mission systems

Senior Systems Administrator/Team Lead

• Jan 2019 - Jul 2021

- Oversaw 49 network and system administrators operating and maintaining 668 systems on 2 networks- Managed and trained 25 data center technicians maintaining 150 Windows and Linux servers- Developed automated solutions for management of Windows systems utilizing PowerShell scripting- Performed group policy management, software update deployment and configuration management- Directed vulnerability management and security configuration enforcement for 7.8K Windows systems- Managed web, database, printer, and file services hosted on Windows and Linux servers

Cybersecurity/Systems Administration Team Lead

• Jul 2017 - Jan 2019

- Managed DISA STIG enforcement for 53 Windows servers & 542 critical mission systems- Trained/managed 22 network/system administrators for mission systems across multiple organizations- Advised key stakeholders on gaps in cybersecurity processes and procedures through regular briefings- Developed cyber security plans, procedures and guidance for 8K network devices across 3 enclaves

Senior Systems Administrator

• Jan 2010 - Jun 2017

- Managed Windows core servers, NetApp filers, backup libraries and ticketing system on TS/SCI network- Administered Unix based signals intelligence collection system; developed scripts to automate common tasks- Conducted vulnerability scans Windows, Linux, and Cisco devices utilizing Tenable Security Center- Developed PowerShell automation tools for system administrators to remotely update workstations- Built/managed VMware Virtual Desktop Infrastructure on classified network for 250 VIP users- Provided troubleshooting services PMO web/database servers lacking on-site system administrators- Designed redundant multi-WAN WiFi network enabling training environment for intelligence analysts- ManagedMcAfee HBSS configuration/updates on Windows/Linux systems utilizing ePolicy Orchestrator

Junior Network/System Administrator

• Aug 2003 - Dec 2009

- Maintained mobile communications package providing core services in austere location- Managed 248 Windows systems, Promina multiplexers, VoIP/POTS phones, and Cisco switches/routers- Created training network and standard operating procedures for Cisco switching and routing- Managed Microsoft Exchange Server and Linux IRC servers for critical coalition communication links- Maintained security configuration and software update compliance on Windows workstations- Performed operating system deployments and configured software/hardware on Windows laptops- Monitored COMSEC account; programmed encryption devices and secure telephones