Information System Security Officer (ISSO)

Job ID: 724584BR Date posted: Apr. 19, 2026
Description:WHAT WE’RE DOING
Lockheed Martin is a cybersecurity pioneer, partner, innovator and builder. Our amazing employees are on a mission to make a difference in the world and every single day we use our unique skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems.

Do you want to be part of a culture that inspires employees to think big, perform with excellence and build incredible products? We provide the resources, inspiration and focus – if you have the passion and courage to dream big, then we want to build a better tomorrow with you.

At Lockheed Martin Rotary and Mission Systems (RMS), 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. Come and experience your future!
THE WORK
We are looking for a cybersecurity SME to join the RMS Classified Cyber Security (CCS) team. This exciting opportunity is located in Colorado Springs, CO and will support multiple Department of Defense (DoD) programs. The candidate will ensure compliance through the implementation of mandatory information system security requirements on assigned information systems utilizing various government guidance publications (e.g., NISPOM, DoD 8500 series, NIST, CNSSI, DAAG, etc.) in support of development and operations.
The work that our CCS Professionals do can be summarized in this way:
• You will have a direct impact to national security, ultimately contributing to protecting your loved ones – this is dynamic, gratifying and impactful work!
• You will have the opportunity to engage in all aspects of the cyber discipline within our large organization & portfolio, often getting exposure to many projects

Who we are:
• You will be a part of a company widely recognized as a top employer and ranked #38 on Forbes "2025 World’s Best Employers"

You will have an opportunity to make a difference in your first year by:
• Coordinating and managing interactions with government partners to facilitate and maintain 100% active status of all Authorizations to Operate.
• Overseeing technical administration of information system in accordance with internal LM and customer security requirements, primarily Risk Management Framework (RMF) to include Continuous Monitoring, Plan of Action and Milestones (POA&M), and Change Management.
• Developing and implementing government-approved information system security procedures and system security plans for the operation of networked and standalone classified systems.
• Communicating, implementing, and managing a formal cybersecurity program
• Overseeing and conducting risk assessments on cybersecurity architecture and perform comprehensive investigations of computer security incidents, collaborating with outside agencies as required.

Other Key Responsibilities and Challenges of this role include:
• Ensure configuration management (CM) for security-relevant software, hardware, and firmware.
• Assist and conduct cybersecurity education and training.
• Assist in conducting investigations of computer security violations and incidents.
• Handling mission requirements which may drive unpredictable work hours/schedules
• Working in a high paced environment driven by growing and ever-changing technical implementation requirements
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.
Basic Qualifications:
• Active Secret security clearance.
• DoD 8570/8140 IAT Level II certification (e.g., Security+ CE, CySA+, CCNA Security, CND).
• Proven hands on experience with industry standard cybersecurity tools, including vulnerability scanners (e.g., Tenable), Security Incident and Event Management (SIEM) and auditing platforms (e.g., Splunk), endpoint protection solutions (e.g., Trellix), and package submission tools (e.g., eMASS, XACTA)
• Demonstrated ability to lead the Risk Management Framework (RMF) process to secure Authorizations to Operate (ATO), encompassing Defense Counterintelligence and Security Agency (DCSA) authorizations.
• Strong technical root cause analysis skills with a track record of developing corrective actions, policies, and procedures to resolve discrepancies.
• Experience conducting risk and vulnerability assessments in line with applicable regulations, such as the DCSA Assessment and Authorization Guide (DAAG), National Industrial Security Program Operating Manual (NISPOM), NIST Special Publication (SP) 800-53, and various DISA Security Technical Implementation Guides (STIGs)
Desired Skills:
• DoD 8570/8140 IAM Level II certification (e.g., CISSP, CISM, CASP+/SecurityX).
• Experience with the Command, Control, Battle Management, and Communications (C2BMC) program.
• Proven track record of deploying and integrating complex, multi‑classification technologies across large‑scale, enterprise‑wide environments.
• Network device administration experience to include security best practices and monitoring of firewall, routers, and switches.
• Strong background in Agile and DevSecOps methodologies and associated toolsets (e.g., JIRA, Confluence, Docker, Ansible, Git).
• In‑depth knowledge of the NISPOM and the DAAG.
• Familiarity with key security frameworks and guidelines, including the Joint Special Access Program (JSIG) Implementation Guide, CNSSI 1253, and NIST SP 800‑37 (Risk Management Framework)
• Bachelor’s degree from an accredited institution in a relevant discipline, supplemented by 8 + years of professional experience in the field.
Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: Secret
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, 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.
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
Type: Full-Time
Shift: First