Information Systems Security Officer - Level 3

Job Overview

We are seeking a highly technical Information System Security Officer (ISSO) to support operations at our Palmdale, CA location. The ISSO will oversee day‑to‑day information system security operations, develop and implement government‑approved information security procedures, and ensure compliance with Lockheed Martin and customer security requirements.

• Oversee day‑to‑day information system security operations as the lead on all technical security matters within complex environments, including auditing the IS, hardware and software implementations, and RMF package authorizations.
• Develop and implement government‑approved information security procedures and system security plans for the operation of networked and standalone classified computer systems.
• Carry out technical administration of information systems in accordance with internal Lockheed Martin and customer security requirements, primarily Risk Management Framework (RMF).
• Document compliance actions with the ISSM to address non‑compliance within allotted time frames.
• Coordinate and manage interactions with government accreditation authorities to facilitate and maintain 100% active accreditation status of all Authorization to Operate (ATO).
• Oversee and conduct 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, and firmware.
• Upscale monitoring, analyze, and respond to security events.
• Assist and conduct security IS education and training.
• Assist in conducting investigations of computer security violations and incidents.
• Participate in internal/external security audits and inspections; perform risk assessments.
• Communicate, implement, and manage a formal Information Security / Information Systems Security Program together with ISSM and Program Security.

• U.S. citizen with Top Secret clearance required.
• DoD 8140 IAT Level II certification (Security+).
• Experience with IS auditing and investigation.
• Practical experience hardening and/or testing Microsoft Windows and Linux operating systems, Active Directory, DNS, SQL, and Oracle databases, IIS and Apache web servers, and network devices including switches, routers, and firewalls.
• Hands‑on experience with industry‑standard Information Assurance tools.
• Experience with developing, reviewing and maintaining RMF artifacts.

• DoD 8140 IAT Level III certification (CASP, CCNP).
• Experience implementing new and complex technologies at multiple classification levels within large environments and at an enterprise level.
• Practical experience configuring and administering host‑based security systems, Splunk and other network monitoring, incident response, and logging tools.
• Familiarity with using Bash/Shell/Ansible to produce hardening scripts and knowledge of system scan analysis tools such as SCAP to identify system vulnerabilities.
• Experience with Sentris, PITBULL OS, MLSDrive, containers, and various networking products.
• Experience with cloud platforms such as AWS, Microsoft Azure, Docker, and others.

This position requires a government security clearance; you must be a U.S. citizen for consideration. Clearance level:
Top Secret with investigation or CV date within 5 years.

Location:

Palmdale, CA (onsite full‑time).

Work schedule:

4×10‑hour days with 3 days off per week.

• Medical, Dental, Vision, Life Insurance, Short‑Term Disability, Long‑Term Disability
• 401(k) match, Flexible Spending Accounts, Employee Assistance Program (EAP)
• Education Assistance, Parental Leave, Paid Time Off, Holidays

Annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas): $93,200 – $164,450. For other states, the salary will reflect the candidate’s final work location.

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 for optimal consideration.

If you are interested in this role, you may apply online through Lockheed Martin’s career portal. For positions that match your qualifications, you can search our listings directly.