Information System Security Officer; ISSO
Listed on 2026-03-13
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IT/Tech
Cybersecurity, Network Security, Information Security, Systems Engineer
Basic Qualifications
- Active Secret security clearance required, with ability to obtain Top Secret.
- Experience with IS auditing and investigations
- Knowledgeable of operating system security requirements
- Hands‑on experience with industry‑standard Information Assurance tools
- Experience with developing, reviewing and maintaining RMF artifacts
E9372:
Classified Cyber Security
Lockheed Martin RMS is searching for an experienced Enterprise Information Systems Security Officer (ISSO) to join an exciting opportunity within the Classified Cyber Security team in Manassas, VA. The selected candidate will provide Cyber Security technical support as an ISSO and support internal and external customers’ expectations on security architecture, and Assessment & Authorization (A&A) events. The selected candidate will also provide Cyber Security support for ongoing projects by executing on program performance execution, delivery, and completion of milestones.
Furthermore, the candidate will provide Cyber Security input and support for the implementation and test of secure operating systems/networks, Dev Sec Ops and cloud solutions.
Daily activities include:
- Providing hands‑on technical assistance for complex systems/networks, assisting with technical strategic planning of current and future network configurations, cyber technology development/implementation, and supporting customer needs (meetings, calls, emails, demonstrations, etc.).
- Participate in planning and implementation of current and future security domains including those which may introduce new service areas (e.g., Cloud Computing, Dev Sec Ops ).
- Interpret the Joint Special Access Program Implementation Guide (JSIG) in determining technical Information Assurance (IA) requirements and ensure proper security implementation of the Risk Management Framework (RMF).
- Assist in developing system documentation for information system authorization, security management, and continuous monitoring of both networked and standalone classified systems.
- Perform system auditing, vulnerability risk assessments, Assured File Transfers, hardware/software configuration management, data integrity containments and investigations on IA related security violations/incidents.
- Provide cybersecurity education and training for all system users on appropriate risk mitigation strategies.
- Provide assistance to Cyber Security Manager and Information System Security Manager (ISSM) as needed or requested and/or guidance to junior technical security professionals.
- Must be willing to travel on short notice.
We offer flexible work schedules to comprehensive benefits investing in your future and security. Learn more about Lockheed Martin’s comprehensive benefits package here. Do you want to be part of a company culture that empowers employees to think big, lead with a growth mindset, and make the impossible a reality? We provide the resources and give you the flexibility to enable inspiration and focus — if you have the passion and courage to dream big, work hard, and have fun doing what you love then we want to build a better tomorrow with you.
DesiredSkills
- Demonstrated technical experience in Windows and Linux based operating systems and command line
- In‑depth experience in system hardening, analysis, and vulnerability management
- Previous experience working with system accreditation requirements and NIST 800-53 (DAAPM/JSIG) RMF implementation
- Experience implementing complex technologies within large environments, possessing strong technical skills
- Understand Agile operations while possessing sound business acumen.
- DoD 8570 IAT Level II certification or higher
- Experience setting up or using Tenable Nessus / Security Center
- Experience setting up or using Splunk
- Experience with scripting languages
- Experience implementing or validating Secure Technical Implementation Guidance (STIGs)
- Bachelor’s degree in a relevant discipline and 3 years of relevant work experience or a master’s degree and 1 year of relevant work experience
- Experience in deploying and hardening software defined infrastructure
- Experience with standard security and network environment tools and…
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