Lockheed Martin · 2 hours ago
Information System Security Manager (ISSM) KOP
King of Prussia, PA
Full-time
Onsite
Senior Level, Lead/Staff
8+ years expLockheed Martin’s Rotary and Mission Systems (RMS) Classified Cyber Security organization is looking for a Classified Cyber Security Manager who will serve as the on site cyber leader for our classified programs. In this role, you will own the day to day security posture of the site’s classified systems and infrastructure, and lead a team of cyber professionals to ensure security governance and compliance across the site.
AerospaceCyber SecurityMachinery ManufacturingMilitaryNational SecurityRemote SensingSecurity
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Own the execution of business enablement initiatives, embedding 21st Century Security into the Classified Cyber program to effectively manage risk while ensuring seamless alignment with customer requirements and successful program execution
Leadership and stewardship of Classified Cyber Security Professionals
Serve as the ISSM for the site’s classified environment
Mentor, train, and develop the cyber talent pool to sustain a high performing, classified cyber security capability
Develop, enforce, and continuously improve security policies, standards, and processes that meet DoD, DISA, and RMS requirements
Oversee the implementation and validation of security controls, ensuring they are applied consistently across all classified assets
Lead risk based assessments, vulnerability management, and incident response activities for the site
Provide expert guidance to program and engineering teams on secure architecture, system hardening, and compliance with NIST SP 800 53, DISA STIGs, and other applicable frameworks
Qualification
Required
Minimum Final Secret Clearance Required
Minimum 8 + years of progressive experience in cybersecurity, with at least 3 + years in an ISSM or site leadership role for classified systems
Own the execution of business enablement initiatives, embedding 21st Century Security into the Classified Cyber program to effectively manage risk while ensuring seamless alignment with customer requirements and successful program execution
Leadership and stewardship of Classified Cyber Security Professionals
Serve as the ISSM for the site's classified environment
Mentor, train, and develop the cyber talent pool to sustain a high performing, classified cyber security capability
Develop, enforce, and continuously improve security policies, standards, and processes that meet DoD, DISA, and RMS requirements
Oversee the implementation and validation of security controls, ensuring they are applied consistently across all classified assets
Lead risk based assessments, vulnerability management, and incident response activities for the site
Provide expert guidance to program and engineering teams on secure architecture, system hardening, and compliance with NIST SP 800 53, DISA STIGs, and other applicable frameworks
Preferred
Practical experience with industry standard Information Assurance tools required for DCSA system authorizations, including: Vulnerability scanning tools (e.g., Tenable), Endpoint protection platforms (e.g., Trellix), SIEM/auditing solutions (e.g., Splunk)
Bachelor's degree from an accredited college in a relevant discipline plus 8 + years of professional cybersecurity experience
SME level expertise with authorization package submission tools (e.g., eMASS) leading to successful Authorization to Operate (ATO) and Authority to Connect (ATC)
Direct experience with the DCSA Assessment and Authorization Guide (DAAG) or the DCSA Assessment and Authorization Process Manual
Familiarity with one or more of the following frameworks and guides: Joint Special Access Program (SAP) Implementation Guide (JSIG), Committee on National Security Systems Instruction (CNSSI) 1253, NIST SP 800 37 Risk Management Framework (RMF), NIST SP 800 53 Security and Privacy Control Requirements
Company
Lockheed Martin
Lockheed Martin is a global security and aerospace company that specializes in advanced technology systems, products, and services. It is a sub-organization of Lockheed Martin.
10001+ employees
Funding
Current Stage
Public CompanyTotal Funding
$6.06BKey Investors
Air Force Research Laboratory
2025-12-05Post Ipo Debt· $3B
2025-08-28Post Ipo Debt· $3B
2023-11-13Grant· $33.7M
Leadership Team
Jim Taiclet
Chairman, President & CEO
Craig Martell
Chief Technology Officer
Recent News
2026-01-24
2026-01-24
2026-01-22
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