Information System Security Officer (TS/SCI & Expat to Guam Required)

Company: Lockheed Martin
Location: King of Prussia
Posted on: April 2, 2026

Job Description:

Job Description Information System Security Officer (TS/SCI & Expat to Guam Required) PLEASE NOTE THIS POSITION REQUIRES THE CANDIDATE TO EXPATRIATE FULL TIME TO GUAM FOR 6-12 MONTHS WITH POSSIBILITY OF EXTENSION IN ADDITION, THE SELECTED CANDIDATE WILL BE REQUIRED TO ATTEND TRAINING IN KING OF PRUSSIA, PA UPON ONBOARDING. Who we are: 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. What We’re Doing: At Lockheed Martin Rotary and Mission Systems, we are driven by innovation and integrity. We believe that by applying the highest standards of business ethics and visionary thinking, everything is within our reach and yours as a Lockheed Martin employee. Lockheed Martin values your skills, training, and education. As a cyber security professional at Lockheed Martin, you'll be part of a team that's shaping the future of national security and defense. You'll have the opportunity to work on complex and challenging projects that require expertise in security and compliance. You'll collaborate with cross-functional teams to ensure the secure development, production, and deployment of our products and services. Your contributions will help protect sensitive information and critical assets and support the success of our customers and partners. The Work: Lockheed Martin’s Rotary & Mission Systems (RMS) division is seeking an experienced Information System Security Officer (ISSO) to protect mission critical OCONUS 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 ISSO is responsible for the oversight of the information system’s security posture. Emphasis is placed on the application and sustainment of the NIST security controls to ensure cyber security requirements are properly administered throughout the system. The ISSO collaborates and consults with the Information System Security Manager (ISSM) regarding the design, development, integration and analysis of classified information systems. Effective communication and an ability to work collaboratively as well as independently are key attributes needed to be successful in this role. Frequent interaction with internal and external stakeholders is required. Along with the ISSM, the ISSO provides clear direction related to cybersecurity compliance standards. Communication with the government Security Control Assessor (SCA) is required to ensure standards are met. The ISSO is a primary stakeholder and will assist the ISSM with facilitating continuous monitoring efforts that promote RMF compliance. Why Join Us: Your Health, Your Wealth, Your Life Our flexible schedules, competitive pay and comprehensive benefits enable you to live a healthy, fulfilling life at work and home. Learn more about Lockheed Martin’s competitive and comprehensive benefits package. We support our employees, so they can support our mission. rmshotmiljobs Basic Qualifications All candidates must possess a Final Top Secret Clearance w/SCI. All candidates must possess a DoD 8570 IAM Level I certification or higher (e.g., Security CE, CAP, CASP CE, CISM, CISSP, GSLC, or equivalent). Demonstrated experience applying and documenting policy and system configurations that satisfy NIST 800-53 Security Control requirements across all Control Families. Ability to interpret the requirements necessary for the effective implementation of Security Controls. Technologies include but are not limited to Windows, Linux, Virtualization, Network Infrastructure, etc. Ability to develop and update relevant RMF artifacts such as the System Security Plan (SSP), Plan of Actions and Milestones (POA&M), Security Controls Traceability Matrix (SCTM), as well as the associated security policies and procedures. Ability to perform continuous monitoring activities using Industry Standard tools such as Tenable Nessus, Security Center, Splunk, ELK, HBSS ePO, etc. Experience leveraging Defense Information System Agency (DISA) Security Technical Implementation Guides (STIGs) and configuration standards to support system hardening. Desired skills Experience working with and interpreting Security Directives, Policies, Publications and Regulations (e.g. ICD 503, JSIG, and/or DCSA Assessment and Authorization Guide (DAAG)). Experience using cybersecurity tools such as Nessus, Splunk, SCAP, HBSS, STIG Viewer to support compliance and monitoring activities Previous experience supporting SAP / SCI environments as an ISSO / ISSE. 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. Other Important Information 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 Schedule Information 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. Security Clearance Information This position requires a government security clearance, you must be a US Citizen for consideration. Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $113,900 - $200,905. 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. Pay Rate: The annual base salary range for this position in most major metropolitan areas in California, Massachusetts, and New York is $131,000 - $227,125. 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. This position is incentive plan eligible.

Keywords: Lockheed Martin, Camden , Information System Security Officer (TS/SCI & Expat to Guam Required), Engineering , King of Prussia, New Jersey