Information System Security Manager (ISSM) KOP

Company: Lockheed Martin
Location: King of Prussia
Posted on: April 3, 2026

Job Description:

Job Description Lockheed Martin’s Rotary and Mission Systems (RMS) Classified Cyber Security organization is looking for a Classified Cyber Security Manager who will serve as the on site cyber leader for our classified programs. In this role you will own the day to day security posture of the site’s classified systems and infrastructure, serve as the facility Information Systems Security Manager (ISSM), and provide authoritative guidance on all matters of confidentiality, integrity, and availability. You will lead a team of cyber professionals, partner with engineering and program leads, and ensure that security governance, risk management, and compliance are embedded into every operational and development activity across the site. Minimum Final Secret Clearance Required Minimum 8 years of progressive experience in cybersecurity, with at least 3 years in an ISSM or site leadership role for classified systems. Key Responsibilities: • Own the execution of business enablement initiatives, embedding 21st Century Security into the Classified Cyber program to effectively manage risk while ensuring seamless alignment with customer requirements and successful program execution. • Leadership and stewardship of Classified Cyber Security Professionals. • Serve as the ISSM for the site’s classified environment. • Mentor, train, and develop the cyber talent pool to sustain a high performing, classified cyber security capability. • Develop, enforce, and continuously improve security policies, standards, and processes that meet DoD, DISA, and RMS requirements. • Oversee the implementation and validation of security controls, ensuring they are applied consistently across all classified assets. • Lead risk based assessments, vulnerability management, and incident response activities for the site. • Provide expert guidance to program and engineering teams on secure architecture, system hardening, and compliance with NIST SP 800 53, DISA STIGs, and other applicable frameworks. Basic Qualifications • U.S. citizen with a final Secret security clearance (or higher). • DoD 8570/8140 IAM Level III certification (e.g., CISSP, CISM). • Demonstrated ability to motivate and influence personnel who possess classified cybersecurity skills. • Proven track record of analyzing complex situations and charting a strategic path that enables program success. • Hands on experience driving the RMF process and working directly with government authorities (e.g., DCSA) for security approvals. • Capability to conduct risk and vulnerability assessments in accordance with current regulatory guidance such as the DCSA Assessment & Authorization Guide (DAAG) and the National Industrial Security Program Operating Manual (NISPOM). Desired skills • Practical experience with industry standard Information Assurance tools required for DCSA system authorizations, including: • Vulnerability scanning tools (e.g., Tenable) • Endpoint protection platforms (e.g., Trellix) • SIEM/auditing solutions (e.g., Splunk) • Bachelor’s degree from an accredited college in a relevant discipline plus 8 years of professional cybersecurity experience. • SME level expertise with authorization package submission tools (e.g., eMASS) leading to successful Authorization to Operate (ATO) and Authority to Connect (ATC). • Direct experience with the DCSA Assessment and Authorization Guide (DAAG) or the DCSA Assessment and Authorization Process Manual. • Familiarity with one or more of the following frameworks and guides: • Joint Special Access Program (SAP) Implementation Guide (JSIG) • Committee on National Security Systems Instruction (CNSSI) 1253 • NIST SP 800 37 Risk Management Framework (RMF) • NIST SP 800 53 Security and Privacy Control Requirements. 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 $134,000 - $236,325. 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 $154,100 - $267,145. 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, East Orange , Information System Security Manager (ISSM) KOP, Engineering , King of Prussia, New Jersey