Classified Cybersecurity Senior ISSO

Job 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.

• 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.)

• 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

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 Martin a great place to work.

With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility. If this sounds like a culture you connect with, you're invited to apply for this role.

Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.

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.

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…