Information System Security Officer (ISSO)

Job ID: 707755BR Date posted: Oct. 16, 2025
Description:Lockheed Martin is a pioneer in cyber security—partnering, innovating, and building cutting edge solutions. Our talented employees tackle the world’s toughest engineering challenges every day, leveraging their unique skills and experiences to design and deliver breakthrough technology.

We empower our people to think big, perform with excellence, and create extraordinary products. If you have the passion and courage to dream boldly, join our culture and help build a better tomorrow. We provide the resources, inspiration, and focus you need to succeed.

Lockheed Martin’s Rotary & Mission Systems (RMS) division is seeking an experienced Information System Security Officer (ISSO) to protect mission critical information systems. This role ensures confidentiality, integrity, and availability in line with DoD, NIST, and Lockheed Martin security policies, while providing day to day oversight across the system lifecycle.

The Information System Security Officer (ISSO) will serve as a primary guardian of mission critical information systems at Lockheed Martin’s Hanover, Maryland site (with monthly support in Washington D.C.). This role ensures the confidentiality, integrity, and availability of all systems in strict compliance with DoD, NIST, and Lockheed Martin security policies throughout the entire system lifecycle.

Effective communication and an ability to work independently are key attributes needed to be successful in this role which requires frequent interaction with internal and external stakeholders. The ISSO assists the ISSM with cybersecurity oversight and will provide guidance and direction to program personnel. The ISSO also works closely with System Administrators and Network Engineers to ensure security patches and secure configurations are in place and functioning properly on the information systems.

The ISSO is a primary stakeholder and facilitator of the continuous monitoring efforts used to promote RMF compliance throughout the organization. In doing so, the ISSO will routinely monitor the security controls selected for the information systems using a blend of automated and manual techniques. This ensures that security controls are implemented correctly with respect to the requirements. Deficiencies and weaknesses identified throughout the process are reported back to the ISSM.

Key Responsibilities:

Security Oversight & Governance
- Direct day to day security management for classified and unclassified systems, enforcing DoD, NIST SP 800 53, RMF, and internal LM security standards.
- Perform day-to-day information system security operations including auditing the IS and reviewing hardware and software baselines.
- Maintain and update System Security Plans (SSPs), Authorization Packages, and Continuous Monitoring Strategies.

Risk Management & Assessment
- Conduct formal risk assessments, vulnerability analyses, and impact assessments; prioritize remediation actions and track mitigation status.
- Participate in internal/external security audits and inspections.
- Lead the preparation of Authority to Operate (ATO) packages and support periodic re authorizations.

Collaboration & Coordination
- Partner with program managers, engineers, acquisition personnel, and internal/external auditors to embed security controls early in the design and development phases.
- Assist in conducting investigations of computer security violations and incidents, reporting as necessary.

Audit & Compliance
- Facilitate internal and external audits, ensuring timely closure of findings and ongoing compliance with all applicable regulations.
- Provide security briefings and status reports to senior leadership and stakeholder groups.
- Ensure configuration management (CM) and IS security documentation for security-relevant IS software, hardware, and firmware is maintained and documented.

Training & Awareness
- Develop and deliver security awareness training tailored to technical and non technical audiences.
Basic Qualifications:
All candidates must possess a Final Top Secret Clearance w/SCI and a Full Scope Polygraph.

All candidates must possess a DoD 8570 IAM Level I certification or higher (e.g., CAP, Security + CE, CASP CE, CISM, CISSP, GSLC, or equivalent).

Previous experience performing routine auditing of security events within an information system.

Previous experience developing SSPs, POA&Ms, and supporting documentation to develop ATO packages and to sustain system authorizations.
Desired Skills:
Relevant ISSO/ISSE experience within the Intelligence Community.

Knowledge of the Defense Information System Agency (DISA) Security Technical Implementation Guides (STIGs) and configuration standards.

Experience working with and interpreting Security Directives, Policies, Publications and Regulations (e.g. ICD 503, JSIG, and/or DCSA Assessment and Authorization Guide (DAAG)).

Familiarity with government Continuous Monitoring tools (e.g., LatteArt, Xacta, CIVET, SEAR, Scanboy, etc.).

Experience using industry-standard cybersecurity tools such as Nessus, Splunk, SCAP, HBSS, STIG Viewer to support compliance and monitoring activities.

Previous experience supporting COMSEC with a demonstrated understanding of the associated policy manuals.

Experience using cybersecurity tools such as Nessus, Splunk, SCAP, HBSS, STIG Viewer to support compliance and monitoring activities.
Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: TS/SCI w/Poly
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: Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility.
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
Pay Rate: The annual base salary range for this position in California and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $73,400 - $129,260. For states not referenced above, the salary range for this position will reflect the candidate’s final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer. Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays. (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year. This position is incentive plan eligible.
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.
Experience Level: Experienced Professional
Business Unit: RMS
Relocation Available: Possible
Career Area: Cyber Security Governance and Risk Compliance
Type: Full-Time
Shift: First