Classified Cyber Security Sr. - Level 3 jobs in United States
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Lockheed Martin · 8 hours ago

Classified Cyber Security Sr. - Level 3

Lockheed Martin is a cybersecurity pioneer, innovator, and builder, seeking a cybersecurity professional to join their classified cybersecurity group. The role involves ensuring compliance with mandatory information system security tasks and managing the overall ATO lifecycle and cybersecurity requirements for multiple programs.

AerospaceCyber SecurityMachinery ManufacturingMilitaryNational SecurityRemote SensingSecurity
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Growth Opportunities
badNo H1BnoteSecurity Clearance RequirednoteU.S. Citizen Onlynote

Responsibilities

Ensure compliance through the implementation of mandatory information system security tasks on assigned information systems utilizing NISPOM, JSIG, DoD 8500, NIST, ICD, CNSSI, DAAPM, and other related DoD documents in support of development and operations
Be responsible for the overall ATO lifecycle and compliance enforcement of cybersecurity requirements
Participate in tasks that include, but are not limited to the management of information systems
Provide information for the development of System Security Plans
Establish and maintain hardware and software configuration management plans
Prepare documents to gain government approvals to operate information systems
Conduct weekly system audits
Manage anti-virus software
Create sanitization procedures for hardware components
Maintain all user accounts
Prepare for and support inspections
Participate in enterprise initiatives
Conduct continuous monitoring
Perform self-inspection review
Prepare Proposal Estimates
Perform other duties as assigned

Qualification

Cybersecurity complianceRisk Management FrameworkNISPOM/DAAPMSIEM (Splunk)Vulnerability management toolsLinux hardeningWindows hardeningDoD 8140 certificationCommunicationAttention to detailLeadership skillsOrganizational skills

Required

Current Secret Clearance
Current DoD 8140 (8570) IAT II or III certification or greater
Knowledgeable of information technology security principles
Various computer/network operating systems
Microsoft suite of applications
Customer service skills
Communication skills
Leadership skills
Organizational skills

Preferred

Demonstrated experience utilizing Security information and event management (SIEM) (esp. Splunk), Nessus/ACAS, ePO/HBSS, and other vulnerability management compliance tools
Experience hardening Linux and Windows Operating Systems to DISA STIG baseline
Keen attention to detail and adherence to established security policies
Excellent verbal and writing skills
Experience with the Risk Management Framework Requirements And/or Experience In obtaining and maintaining ATOs
Experience with NISPOM/DAAPM
Experience implementing new and complex technologies at multiple classification levels within large environments

Company

Lockheed Martin

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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.

Funding

Current Stage
Public Company
Total Funding
$6.06B
Key Investors
Air Force Research Laboratory
2025-12-05Post Ipo Debt· $3B
2025-08-28Post Ipo Debt· $3B
2023-11-13Grant· $33.7M

Leadership Team

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Jim Taiclet
Chairman, President & CEO
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Craig Martell
Chief Technology Officer
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Company data provided by crunchbase