Cybersecurity Jobs in King of Prussia, PA

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1mo ago

Information Systems Security Officer, Classified Cybersecurity

Lockheed Martin Corporation King of Prussia, PA

King of Prussia, PA

1mo ago Closed

Full time Cybersecurity Tools Incident Response Information Security

This position is no longer accepting applications (closed Jul 3, 2026).

Job Description

Lockheed Martin is seeking an Information Systems Security Officer to lead classified cybersecurity operations within its Valley Forge area. This onsite role in King of Prussia, PA, supports RMF-based security across classified programs and requires an active Top Secret clearance to operate effectively within controlled environments.

Responsibilities

Support day-to-day information system security operations including hardware and software implementations.
Carry out technical administration of information systems in line with internal Lockheed Martin and customer security requirements, with a focus on RMF.
Upkeep, monitor, analyze, and respond to network and security events.
Document compliance actions within the approved automated compliance tracking system or develop a plan of actions and milestones (POA&M) with the Information Systems Security Manager (ISSM) to address non-compliance within the allotted time frame.
Ensure systems are operated, maintained, and disposed of in accordance with internal security policies and practices outlined in the security plan.
Auditing activities are a significant portion of this role's responsibilities.

Requirements

Current Top Secret clearance
DoD 8570 IAT Level II certification or the ability to obtain within 6 months of hire
Information Systems auditing experience
Knowledge of operating system security requirements
Hands-on experience with industry standard Information Assurance tools

Benefits

Competitive pay
Comprehensive benefits
Flexible schedules
Work-life balance with flex hours

Security clearance

This position requires a government security clearance; you must be a US citizen for consideration. Current Top Secret clearance is required.

Job details

Location: King of Prussia, PA (onsite)
Type: Full-Time
Shift: First
Business Unit: SPACE
Experience level: Experienced Professional
Schedule: 9x80 every other Friday off
Relocation: No

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