Looking for a job

Charles London

@charleslondon

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Senior ISSO and ISSE | RMF and ATO Sustainment | TS/SCI with CI Polygraph | CASP+

United States

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What I'm looking for

I'm looking to apply my classified-system security, RMF, ATO sustainment, and multi-enclave operations experience to secure mission-critical environments and lead high-performing technical teams.

Senior Information System Security Officer and security engineer with nearly 20 years securing and sustaining classified Department of Defense information systems across NIPRNet, SIPRNet, JWICS, and NSANet. Experienced in Risk Management Framework execution, ATO sustainment, continuous monitoring, NIST SP 800-53 security controls, Xacta 360, POA&M management, ACAS vulnerability analysis, DISA STIG compliance, and remediation verification across environments exceeding 1,000 systems.

Reduced patching timelines from 90 to 30 days and supported a cybersecurity inspection completed with 98 percent accuracy. Additional experience includes classified access management, PKI, IAM, COMSEC, SCIF recertification, TEMPEST compliance, cross-domain enclaves, and joint and coalition information sharing.

I hold a bachelor’s degree in cybersecurity, CompTIA CASP+ certification, and an active TS/SCI clearance with a CI polygraph. I am seeking senior ISSO, ISSE, cybersecurity engineering, or security architecture positions supporting DoD and Intelligence Community missions.

Experience

Work history, roles, and key accomplishments

Current

Senior ISSO / Cybersecurity Engineer

Current

United States Marine Corps

Jul 2024 - Present (2 years 2 months)

Serve as Senior ISSO for a 1,000-Marine command, accountable for the security posture of classified systems across NIPRNet, SIPRNet, JWICS, and NSANet. Coordinated TS/SCI capability expansion and trained expeditionary teams to deploy secure communications within three hours.

RMF NIST SP 800 53 ATO Sustainment Continuous Monitoring POA&M DISA STIGs IAVA ACAS Tenable.Sc SCCM Xacta 360 JWICS SIPRNet NSANET NIPRNet Account Management Policy Development User Training

Senior Systems Integration Engineer

United States Marine Corps

Jul 2023 - Jul 2024 (1 year)

Forward deployed to Bahrain supporting Marine Corps Forces Central Command, managing 17 accountable assets and more than 50 equipment items across joint and coalition operations. Conducted COMSEC inventories and administered classified network accounts and workstations.

COMSEC KMI CCI Firefly JWICS SIPRNet Account Management System Administration Reimaging Network Operations

Senior Systems Engineer / S-6 Operations Chief

United States Marine Corps

Jan 2021 - Jul 2023 (2 years 6 months)

Led a 54-person technical workforce responsible for enterprise systems administration, cybersecurity compliance, network operations, and technical support for 300 users. Directed concurrent NIPRNet, SIPRNet, and JWICS enclave operations and developed NOC training for 35 Marines.

NIPRNet SIPRNet JWICS Network Operations Cybersecurity Compliance Enterprise Systems Administration Training Leadership

ISR Systems Engineer Operations Chief

United States Marine Corps

Jan 2018 - Jan 2021 (3 years)

Led 50 Marines responsible for expeditionary ISR systems, SIGINT support, classified network operations, and secure network architecture, sustaining services at 99.9 percent availability. Administered TS/SCI Windows and Linux environments and a classified Microsoft Azure enclave.

ISR Signals Intelligence NIPRNet SIPRNet JWICS NSANET Windows Linux Azure Virtualization DISA STIGs IAVA Patching Training

Special Intelligence Systems Chief / Assistant SSO

United States Marine Corps

Dec 2015 - Jan 2018 (2 years 1 month)

Led six Marines and two contractors responsible for classified intelligence systems, cybersecurity support, and Special Security Office operations across four locations. Revised security policy and administered NIPRNet, SIPRNet, and JWICS services.

Special Security Office SCIF Personnel Security Visitor Processing NIPRNet SIPRNet JWICS Policy Development Standard Operating Procedures

Intelligence Systems Operations Chief / TACCOM NCOIC

United States Marine Corps

Apr 2011 - Dec 2015 (4 years 8 months)

Led more than 50 Marines responsible for Network Operations Center support, classified intelligence systems, tactical communications, and systems configuration for over 300 users. Deployed to Afghanistan as a SIGINT Systems Team Leader directing teams that installed and sustained intelligence systems.

Network Operations Center Tactical Communications Signals Intelligence Systems Configuration Leadership Deployment Intelligent Systems