Classified Cyber Security Sr. - Level 3 jobs in United States
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Lockheed Martin · 22 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 cybersecurity requirements, managing information systems, and participating in various tasks related to information security and compliance enforcement.

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, providing information for the development of System Security Plans, establishing and maintaining hardware and software configuration management plans, preparing documents to gain government approvals to operate information systems, weekly system audits, anti-virus software management, creating sanitization procedures for hardware components, maintenance of all user accounts, preparing for and supporting inspections, participating in enterprise initiatives, continuous monitoring, self-inspection review, Proposal Estimates, and other duties as assigned

Qualification

ISSOISSM ExperienceDoD 8570 IAT Level IISecurity ClearanceSIEM (Splunk)Vulnerability Management ToolsLinuxWindows HardeningRisk Management FrameworkVerbalCustomer Service SkillsAttention to DetailWriting SkillsLeadership SkillsOrganizational Skills

Required

5 years or more of ISSO or ISSM Experience or other Information Assurance discipline
Possession of, or ability obtain, required DoD 8570 IAT Level II baseline certification (Security+ CE, CySA+, CND, CCNA-Security, GISCP, GSEC or SSCP) within six months of hire date
Ability to obtain a Secret Clearance

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
Current Secret Clearance
Experience implementing new and complex technologies at multiple classification levels within large environments
Current DoD 8140 (8570) IAT II or III certification or greater

Benefits

Medical
Dental
Vision
Life Insurance
Short-Term Disability
Long-Term Disability
401(k) match
Flexible Spending Accounts
EAP
Education Assistance
Parental Leave
Paid time off
Holidays

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