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Information System Security Officer, Classified Cybersecurity

Job in Littleton, Arapahoe County, Colorado, 80161, USA
Listing for: Lockheed Martin
Full Time position
Listed on 2026-02-28
Job specializations:
  • IT/Tech
    Cybersecurity, Information Security, Systems Administrator, IT Consultant
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
  • TS/SCI with the ability to receive Polygraph
  • DoD 8570/8140 IAT Level II certification or Higher, or ability to obtain within 6 months of hire
  • Knowledgeable of operating system security requirements
  • Hands on experience with industry standard Information Assurance tools
Basic Qualifications

  • TS/SCI with the ability to receive Polygraph
  • DoD 8570/8140 IAT Level II certification or Higher, or ability to obtain within 6 months of hire
  • Information Systems auditing experience
  • Knowledgeable of operating system security requirements
  • Hands on experience with industry standard Information Assurance tools


Job Description

This position requires TS/SCI clearance with ability to receive Polygraph.

The Cybersecurity Specialist will partner with the security team, program, and government customers to perform as an Information Systems Security Officer (ISSO) for Sensitive Programs located at the LM Waterton facility in Littleton, CO.

In This Role You Will

  • Oversee day-to-day information system security operations including auditing the IS, hardware, and software implementations and RMF package authorizations.
  • Carry out technical administration of IS in accordance with internal LM and customer security requirements, primarily Risk Management Framework (RMF).
  • Upkeep, monitor, analyze, and respond to network and security events.
  • Document compliance actions with the 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.
  • Participate in internal/external security audits/inspections; performs risk assessments.
  • 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.
  • Ensure configuration management (CM) for security-relevant IS software, hardware, and firmware is maintained and documented.
  • Assist in conducting investigations of computer security violations and incidents, reporting as necessary.
  • 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 CPSO.
Desired Skills

  • Experience implementing new and complex technologies at multiple classification levels within large environments and at an Enterprise level
  • Currently working in environment supporting IC customers
  • Proved ability to obtain and maintain system ATOs
  • Hands-on experience with ICD 503
  • DoD 8570/8140 IAM Level III certification
  • Bachelors 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 Masters degree
Other Important Information

By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.

Ability to work remotely

Onsite Full-time:
The work associated with this position will be performed onsite at a designated Lockheed Martin facility. #J-18808-Ljbffr
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