Patrick Johnson

Patrick Johnson

Technical Delivery Lead @ Leidos

About

Senior cybersecurity engineer supporting classified and mission-critical systems across federal and defense environments. 15+ years securing complex infrastructures from design through authorization and continuous monitoring. Expert in RMF lifecycle, NIST 800-53, ATO acceleration, Zero Trust architecture, and secure cloud deployment for TS/SCI programs. Experienced leading cross-functional teams and advising executive stakeholders. Open to cleared contract, architecture, and program security leadership opportunities globally. Cybersecurity Frameworks & Compliance: RMF, NIST SP 800-53, FISMA, DISA STIGs, ATO processes, Continuous Monitoring, POA&M management, Control Assessment Procedures Security Assessment Tools: ACAS, Nessus, Tenable.io, VRAM, Splunk SIEM, McAfee ePO, HBSS, vulnerability scanning and remediation. Cloud & Infrastructure: AWS environments, VMware vSphere 6.7, Windows Server 2008/2012/2016, Red Hat Enterprise Linux, Debian Linux, Microsoft Exchange, Active Directory Network Security & Monitoring: SolarWinds, Wireshark, Cisco ASA firewalls, IDS/IPS systems, network performance optimization, TCP/IP, SNMP, OSPF System Administration & Automation: SCCM, Ansible automation, PowerShell scripting, WSUS patching, endpoint management, configuration management

Country

Bahrain

City

Manama

Industry

Defense & Space

Skill

AI Literacy, Classified infrastructure, Continuous diagnostics monitoring, Cross Domain Solutions, STIG hardening, ICD 503, DevSecOps, Security Architecture, Business Acumen, Security Information and Event Management (SIEM), Threat & Vulnerability Management, Hardware Installation, Technology Management, Red Hat Enterprise Linux (RHEL), E-safety, Training and Development (HR), Cross-training, Equipment Reliability, Information and Communications Technology (ICT), Content Providers

Experience

Leidos

Technical Delivery Lead

Leidos

LinkedIn
2022-7 - Present · 4 yrs 3 mos

● Implement and sustain RMF controls aligned with NIST SP 800-53, supporting ATO maintenance for mission-critical systems across classified and unclassified enclaves. ● Partner with ISSOs and engineering teams to convert assessment findings into actionable remediation plans with audit-defensible evidence and comprehensive documentation. ● Lead remediation of 10,000+ security vulnerabilities across classified and unclassified environments using ACAS, Nessus, Tenable.io, and VRAM, materially reducing enterprise risk exposure. ● Manage and maintain HP Server 2012R2 servers for unclassified and classified enclaves, ensuring continuous compliance with DoD security requirements and operational availability. ● Execute comprehensive asset management program across Middle East operations, directing asset reconciliations, inventories, and configurations worth $10M in legacy equipment upgrades. ● Collaborate with Regional Piers Manager and cross-functional teams to deliver OCONUS Piers support, connecting naval vessels to shore base networks while maintaining security posture.

SAIC

Linux Systems Administrator / Technical Site Lead

SAIC

LinkedIn
2019-2 - 2022-6 · 3 yrs 5 mos

● Secured $50M+ C4I systems supporting U.S. Central Command operations, maintaining authorization posture in high-risk operational environments through continuous RMF implementation. ● Administered Splunk SIEM supporting log analysis, alert triage, and evidence collection for A&A documentation, enhancing security incident response capabilities across CENTCOM operations. ● Managed endpoint security via McAfee ePO, supporting control validation, POA&M remediation, and audit readiness for continuous monitoring requirements. ● Executed RMF Continuous Monitoring processes, correlating vulnerability and configuration data to enhance risk visibility and remediation prioritization across enterprise systems. ● Automated patching and configuration management using Ansible, reducing deployment errors by 25% and improving compliance consistency across 12-person technical team. ● Led 12-man team embedded with NAVCENT'S 5th Fleet Joint Mobile Assured Support Terminal, deploying self-contained C4I system within 24 hours worldwide for critical missions.

Rentokil Initial

Service Desk Manager

Rentokil Initial

LinkedIn
2016-1 - 2019-1 · 3 yrs 1 mo

● Directed enterprise-scale incident management operations supporting 50 personnel across North America, Puerto Rico, Mexico, and Canada, ensuring consistent application of ITIL processes. ● Managed crisis management operations and incident response protocols, maintaining service quality standards and minimizing infrastructure outages across international operations. ● Established customer-centric support framework across multiple channels including walk-up support, chat, desk-side, phone, and ticketing systems for enterprise-wide coverage. ● Developed vendor relationship management processes and purchase order approval workflows, optimizing operational efficiency and budget oversight responsibilities. ● Provided KPI reporting and trend analysis to Director and CIO through ad-hoc, weekly, and monthly executive briefings, driving data-informed decision making. ● Oversaw solutions repository development ensuring top-quality support documentation and knowledge management across geographically distributed support teams.

Defense Health Agency

Service Desk Manager

Defense Health Agency

LinkedIn
2014-3 - 2016-1 · 1 yr 11 mos

● Managed team of 60 personnel providing Tier I and II end-user support for 10,000 students across Joint Military Medical and Training Campus operations. ● Implemented 12,000 device lifecycle program spanning 13 buildings and 2 off-site locations, ensuring optimal device performance per DoD regulations and security requirements. ● Developed a centralized change control platform for all change management documentation, establishing standardized processes and procedures across the medical education environment. ● Chaired monthly change control meetings with stakeholders, ensuring infrastructure changes were introduced in controlled and efficient manner aligned with operational requirements. ● Coordinated exam support, material production, and course promotion activities, validating educational adequacy and goal accomplishment for military medical training programs. ● Established quality control processes for change requests, ensuring solutions and infrastructure modifications met security and operational standards

Defense Health Agency

System Administrator

Defense Health Agency

LinkedIn
2011-3 - 2014-3 · 3 yrs 1 mo

● Provided Tier II/III support to joint-service personnel across Navy, Air Force, Army, Coast Guard, and Marines at the Medical Education Training Campus, ensuring uninterrupted operational readiness. ● Created, packaged, and deployed Windows 10 enterprise images aligned with DoD security baselines, remediating 98% of vulnerabilities across workstations, laptops, printers, and network devices. ● Managed SCCM deployments, classified and unclassified networks, and SharePoint content, supporting 43 academic departments and 10,000+ users while maintaining compliance and system uptime standards.

Defense Health Agency

Tier I Specialist

Defense Health Agency

LinkedIn
2010-3 - 2011-3 · 1 yr 1 mo

● Delivered Tier I support to 10,000+ end users, resolving email, browser, and network connectivity issues to minimize operational disruptions across medical education facilities. ● Utilized Remedy, HEAT, ServiceNow, Oracle RightNow, and HP Service Manager ITSM platforms to track, prioritize, and resolve incidents while maintaining accurate documentation and reporting. ● Managed hardware and software lifecycles and administered Active Directory, Group Policies, and Windows ACLs to maintain enterprise-wide security and access compliance.

US Army

Senior Executive - First Sergeant, A Co 9th Engineer Battalion (Combat)

US Army

LinkedIn
2009-8 - 2011-8 · 2 yrs 1 mo

● Led and managed 118 Soldiers in a forward-deployed Combat Engineer Battalion in CENTCOM AOR, conducting route clearance operations over 42,000 kilometers of IED-contested routes while maintaining combat readiness and operational effectiveness. ● Directed 250+ combat patrols and counter-IED missions across five Iraqi provinces during OIF 08–10, ensuring mission success, equipment accountability, and zero personnel injuries. ● Oversaw long-range planning and resource management, including $3M+ in engineering equipment, personnel readiness, and operational funding, ensuring unit-wide contingency preparedness and deployment capability.

US Army

Senior Executive - Battalion Operations Sergeant, 9th Engineer (Combat)

US Army

LinkedIn
2008-8 - 2009-8 · 1 yr 1 mo

● Managed operations for 548 Combat Engineers across six companies in CENTCOM AOR, overseeing mission planning, execution, and coordination for Brigade Combat Team Task Force operations during OIF 08–10. ● Directed S-3 operations, tracking 250+ combat patrols, coordinating seamless transfer of authority, and maintaining continuous command and control to ensure mission success and route clearance readiness. ● Developed training programs for 12 incoming personnel and coordinated HMMWV egress training for 200+ Soldiers, enhancing combat readiness and operational effectiveness

US Army

Senior Observer Controller & Trainer, 1st 345th Engineer Regiment (TS) (Ac/Rc) (Combat)

US Army

LinkedIn
2005-8 - 2008-8 · 3 yrs 1 mo

● Planned, coordinated, and executed pre- and post-mobilization training for Reserve Component units supporting worldwide combat missions in OIF and OEF, ensuring readiness and mission success. ● Trained and mentored 3,000+ Soldiers, Sailors, and Airmen on mounted patrolling, IED defeat techniques, and operational tactics at Fort McCoy and Fort Bragg, enhancing cross-branch deployment readiness. ● Designed, supervised, and implemented realistic IED training lanes and conducted after-action reviews for eleven Reserve Component battalions across a four-state region, improving combat effectiveness and operational safety.

US Army

Platoon Sergeant, B Company, 20th Engineer Battalion (Mech) (Combat), 1st Cav Div

US Army

LinkedIn
2004-6 - 2005-8 · 1 yr 3 mos

● Led a 29-Soldier mechanized platoon in CENTCOM AOR during OIF I & II, ensuring training, professional development, welfare, and operational readiness while supporting armored battalion missions. ● Directed the establishment of eight polling sites for Iraq’s first democratic election, maintaining security and operational effectiveness under high-risk conditions. ● Executed 300+ cordon and search operations, securing contraband, capturing four high-value targets, and safeguarding critical infrastructure while maintaining 98% operational readiness and $650K asset accountability.

US Army

Squad Leader, B Company 20th Engineer Battalion (Mech) (Combat), 1st Cav Div

US Army

LinkedIn
2001-1 - 2004-6 · 3 yrs 6 mos

● Led an eight-man mechanized combat engineer squad in CENTCOM AOR, ensuring health, welfare, morale, and accountability of $450K in critical equipment while supporting armored battalion operations. ● Trained and certified squad members on Engineer Qualification Tables II–VIII and demolitions, achieving 100% first-time qualification success and maintaining combat readiness and safety standards. ● Mentored Platoon Leaders and Brigade Officers during warfighter exercises, providing expert guidance in combat engineering operations and tactical mission execution.

Education

American InterContinental University

American InterContinental University

LinkedIn

Computer and Information Systems Security/Information Assurance

DeVry University - Westminster

DeVry University - Westminster

LinkedIn

Information Technology

Patrick Johnson 's Contact Information

Email

******@***.com

Phone

(**) *** ****

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