Mid Career Information System Security Officer (ISSO) jobs in United States
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Lockheed Martin · 6 hours ago

Mid Career Information System Security Officer (ISSO)

Lockheed Martin is a cybersecurity pioneer and innovator, seeking a Cyber Security SME to join their RMS classified cybersecurity group. The role involves ensuring compliance with information system security tasks and supporting multiple Department of Defense programs.

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

Responsibilities

Coordinating and managing interactions with government authorities to facilitate and maintain 100% active status of all Authorization to Operate
Overseeing technical administration of information system in accordance with internal LM and customer security requirements, primarily Risk Management Framework (RMF) to include Continuous Monitoring, Plan of Action and Milestones (POA&M), and Change Management
Developing and implementing government-approved information security procedures and system security plans for the operation of networked and standalone classified computers systems
Communicating, implementing, and managing a formal Information Security / Information Systems Security Program
Overseeing and conducting risk assessments on cybersecurity architecture and perform comprehensive investigations of computer security incidents, collaborating with outside agencies as required
Ensure configuration management (CM) for security-relevant IS software, hardware, firmware, and system documentation
Assist and conduct security IS education and training
Assist in conducting investigations of computer security violations and incidents
Handling mission requirements which may drive unpredictable work hours/schedules
Working in a high paced environment driven by growing and ever-changing technical implementation requirements

Qualification

CybersecurityRisk Management Framework (RMF)Continuous MonitoringSystem Security PlansEMASSNetwork Device ConfigurationAgileDevSecOpsNISPOMVerbalCOMSEC Account ManagementAttention to DetailWriting Skills

Required

Ensure compliance through the implementation of mandatory information system security tasks on assigned information systems utilizing various government guidance publications (e.g., NISPOM, DoD 8500 series, NIST, CNSSI, DAAPM, etc.)
Coordinating and managing interactions with government authorities to facilitate and maintain 100% active status of all Authorization to Operate
Overseeing technical administration of information system in accordance with internal LM and customer security requirements, primarily Risk Management Framework (RMF) to include Continuous Monitoring, Plan of Action and Milestones (POA&M), and Change Management
Developing and implementing government-approved information security procedures and system security plans for the operation of networked and standalone classified computers systems
Communicating, implementing, and managing a formal Information Security / Information Systems Security Program
Overseeing and conducting risk assessments on cybersecurity architecture and perform comprehensive investigations of computer security incidents, collaborating with outside agencies as required
Ensure configuration management (CM) for security-relevant IS software, hardware, firmware, and system documentation
Assist and conduct security IS education and training
Assist in conducting investigations of computer security violations and incidents
Handling mission requirements which may drive unpredictable work hours/schedules
Working in a high paced environment driven by growing and ever-changing technical implementation requirements

Preferred

Keen attention to detail and adherence to established security policies
Excellent verbal and writing skills
Experience with system certification, auditing, and continuous monitoring
Experience managing and implementing the ATO Lifecyle utilizing eMASS, Xacta, or other technologies
Experience with network device configuration (i.e., Cisco, Juniper, etc)
COMSEC Account Management
Experience with Agile and DevSecOps concepts and toolsets (e.g. JIRA, Confluence, Docker, Ansible, Git, etc.)
Experience with the National Industrial Security Program Operating Manual (NISPOM) and the Defense Counterintelligence and Security Agency Assessment and Authorization Process Manual (DAAPM)
Familiarity with Joint Special Access Program (SAP) Implementation Guide (JSIG), Committee on National Security Systems Instruction (CNSSI) 1253, NIST SP 800-37 Risk Management Framework (RMF), and/or NIST SP 800-53 Security and Privacy Controls requirements

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