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Classified Cybersecurity Senior ISSO Security Clearance

Job in Stratford, Fairfield County, Connecticut, 06614, USA
Listing for: Lockheed Martin
Part Time position
Listed on 2026-01-09
Job specializations:
  • IT/Tech
    Cybersecurity
Job Description & How to Apply Below
Position: Classified Cybersecurity Senior ISSO with Security Clearance
Job Number 713560

Description:

• 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/external 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 Program Security.

Basic Qualifications:

• TS Clearance required

• DoD 8570 IAT Level II certification or higher

• Experience with IS auditing and investigations

• Knowledgeable of operating system security requirements (Windows/RHEL)

Hands-on experience with industry-standard Information Assurance tools (Splunk, Nessus, SCAP, etc.)

• Experience with developing, reviewing and maintaining RMF artifacts (SSP, IRP, CP, RAR, etc.)
Desired

Skills:

• MS 365 and Power Automate
Agile Development and Jira
• Experience Network development/management
• Deep experience obtaining and maintaining system ATOs

Hands-on experience with ICD 503/JSIG/DAAPAM

• DoD 8570 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
Security Clearance Statement:
This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: Top Secret
Other Important Information You Should Know
Expression of Interest:
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: Part-time Remote Telework:
The employee selected for this position will work part of their work schedule remotely and part of their work schedule at a designated Lockheed Martin facility. The specific weekly schedule will be discussed during the hiring process.
Work Schedules:
Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.
Schedule for this Position: 4x10 hour day, 3 days off per week
Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.
The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.
At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed…
Position Requirements
10+ Years work experience
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