Information System Security Officer, Classified Cybersecurity jobs in United States
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Lockheed Martin · 10 hours ago

Information System Security Officer, Classified Cybersecurity

Lockheed Martin is a leader in aerospace and defense. They are seeking a Cybersecurity Specialist to act as an Information Systems Security Officer (ISSO), overseeing security operations and ensuring compliance with security policies and procedures.

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

Responsibilities

Oversee day-to-day information system (IS) security operations including hardware and software implementations
Fulfill appointed Media Custodian role as requested/directed by the customer
Carry out technical administration of IS in accordance with internal LM and customer security requirements, primarily RMF
Auditing of the IS
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 in 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
Ensure configuration management (CM) for security-relevant IS software, hardware, and firmware is maintained and documented in accordance with baseline
Ensure all information system security-related documentation is current and accessible to properly authorized individuals
Ensure records are maintained for workstations, software, servers, routers, firewalls, network switches, telephony equipment, etc. throughout the information system's life cycle
Evaluate proposed changes or additions to the information system, and advise the ISSM of their security relevance
Assist and conduct security IS education
Participate in internal/external security audits/inspections; perform risk assessments
Inform ISSM on technical IS security matters
Assist in conducting investigations of computer security violations and incidents, reporting as necessary to both the Program Security and Program Managers
Ensure proper protection and/or corrective measures have been taken when an incident or vulnerability has been discovered
Communicate, implement and manage a formal Information Security/Information Systems Security Program together with ISSM and Program Security
Implement and enforce Information Security Policies and Procedures together with ISSM and Program Security
Review and oversee RMF Package authorizations with the ISSM

Qualification

DoD 8140/8570 IAM Level III certificationRisk Management Framework (RMF)GraylogSplunkRHELWindowsCiscoJuniper devicesInformation Security PoliciesSecurity audits/inspectionsIncident responseTechnical administration

Required

This position requires a current Top Secret/SCI clearance
Oversee day-to-day information system (IS) security operations including hardware and software implementations
Fulfill appointed Media Custodian role as requested/directed by the customer
Carry out technical administration of IS in accordance with internal LM and customer security requirements, primarily RMF
Auditing of the IS
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 in 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
Ensure configuration management (CM) for security-relevant IS software, hardware, and firmware is maintained and documented in accordance with baseline
Ensure all information system security-related documentation is current and accessible to properly authorized individuals
Ensure records are maintained for workstations, software, servers, routers, firewalls, network switches, telephony equipment, etc. throughout the information system's life cycle
Evaluate proposed changes or additions to the information system, and advise the ISSM of their security relevance
Assist and conduct security IS education
Participate in internal/external security audits/inspections; perform risk assessments
Inform ISSM on technical IS security matters
Assist in conducting investigations of computer security violations and incidents, reporting as necessary to both the Program Security and Program Managers
Ensure proper protection and/or corrective measures have been taken when an incident or vulnerability has been discovered
Communicate, implement and manage a formal Information Security/Information Systems Security Program together with ISSM and Program Security
Implement and enforce Information Security Policies and Procedures together with ISSM and Program Security
Review and oversee RMF Package authorizations with the ISSM

Preferred

Experience with obtaining and maintaining system Authority to Connect (ATO)
Experience implementing new and complex technologies at multiple classification levels within large enterprise environments
DoD 8140/8570 IAM Level III certification
Ability to understand information systems equipment configurations
Experience working Assessment & Authorization (A&A) to completion
Experience with Graylog or Splunk
Experience with RHEL and Windows
Experience with Cisco and/or Juniper network devices
Have a Bachelor's degree from an accredited college in a related discipline, or equivalent experience/combined education, with 5 years of professional experience; or 3 years of professional experience with a related Master's degree

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