Cyber Systems Security Engineer III

Job ID: 727268BR Date posted: May. 11, 2026
Description:Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future.

At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity.

For over 70 years, the Fleet Ballistic Missile (FBM) team has supported the Navy’s mission to provide affordable and credible strategic defense. We offer unique career opportunities and challenges on a program with a rich history and exciting future. We help keep this nation and our allies secure. The FBM Program is experiencing significant growth and we need your expertise to deliver amazing new technologies to our customers while maintaining the technical requirements of the strategic deterrence.

Learn about the Trident II D5 Fleet Ballistic Missile.

We want you to support the Fleet Ballistic Missile (FBM) Program by joining the Systems Security Engineering (SSE) team as a Senior Cyber Systems Security Engineer. The FBM SSE team handles all Security Engineering development and execution for the Engineering Integration and Test (SEIT) team and Missile Subsystems.

We have a Weapon System level view of the FBM Program with activities related to integrating FBM Cyber and Systems Security capabilities for the Life Extension 2 (LE2) missile into the submarine weapon system, as well as supporting efforts to integrate missile subsystems into the flight vehicle design.

As a Senior Cyber Systems Security Engineer for SEIT on the FBM Life Extension 2 (LE2) program, you will:

• Support our large, dynamic and critical program in achieving Hardware Assurance (HwA) processes to meet Navy processes
• Integrate HwA into Systems Engineering (SE) and Cyber Security Processes
• Provide guidance to achieve Hardware (HW) trustworthiness and risk management in systems and lifecycles
• Apply Systems Engineering and Cyber Security principles to meet functional and objective mission requirements .
• Coordinate across Integrated Product Teams, customer and other contractors to execute System Security Engineering technologies.
• Help ensure the resiliency in the Supply Chain
• Organize/coordinate domain expert objective evidence creation and documentation.
• Organize/coordinate system level technical reviews.
Basic Qualifications:
DoD IAT/IAM Level 2 Certification
Experience with DoD Cyber Security Requirements, Policies, and Procedures (DoD 8500.01, 8510.01, NIST 800 Series.)
Desired Skills:
Familiar with Supply Chain Risk Management (SCRM) and Hardware Assurance
Experience with Navy Systems Security Engineering and Ordinance Document Compliance
Strong Interpersonal, Communication, Organization and Senior Leader Presentation Skills
Familiar with DoD Levels of Assurance (LoA)
Familiar with DoDI 5200.44
Knowledge of Technical and Risk Management
Experience with Vulnerability Identification and Resolution

#LMSpaceSystemsEng
#LMSpaceCyberEng
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: 9x80 every other Friday off
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 $101,000 - $178,135. 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: SPACE
Relocation Available: No
Career Area: Cyber Security Engineering
Type: Full-Time
Shift: First