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Lockheed Martin

Cyber Systems Security Engineering Sr - E3

Littleton, CO, United States
King of Prussia, PA, United States
Littleton, United States
King of Prussia, United States

Pay Information Full-Time Salary Range: $110300.00 - $204900.00 At Lockheed Martin, we know mission success starts with taking care of our people.

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Job details

Pay: Pay Information Full-Time Salary Range: $110300.00 - $204900.00 At Lockheed Martin, we know mission success starts with taking care of our people.
Apply by: Apr 28, 2027
Posting language: English
Posted: Oct 30, 2026

Original job description

Standard Job Description

The Fleet Ballistic Missile (FBM) program is seeking a Cybersecurity Engineer to help safeguard critical defense systems and support the resilience of strategic deterrence capabilities. In this role, you will assist with evaluating system designs, conducting cybersecurity testing and risk analysis, and communicating findings to engineering and program teams. You will work at the intersection of systems engineering and cybersecurity, supporting assessments across system and component levels. Your work will contribute to cybersecurity design improvements, testing activities, and System Security Engineering (SSE) requirements that support the Navy’s strategic defense mission.

Key Responsibilities

Review systems and designs to help identify cybersecurity characteristics, concerns, and potential gaps
Support cybersecurity testing, evaluation, and risk analysis at the system and component levels
Document and communicate assessment results, trends, and recommendations to program stakeholders
Provide cybersecurity input to system architecture activities, security design reviews, and mitigation planning
Assist with developing, updating, and executing test plans related to SSE requirements
Research cybersecurity requirements, tools, and assessment methods applicable to defense and aerospace systems
Collaborate with systems engineers, software engineers, test teams, and other cross-functional partners
Support cybersecurity documentation and compliance activities as assigned

Program Environment

For more than 70 years, the FBM team has supported the Navy’s strategic deterrence mission by delivering affordable and credible defense capabilities for the nation and its allies. You’ll work alongside a legacy of engineering excellence in a culture that values innovation, resiliency, collaboration, and continuous growth. Lockheed Martin’s 21st Century Security® vision drives the integration of advanced cyber capabilities with trusted, mission-critical systems. In this role, your contributions will help protect people, strengthen system resilience, and support national security.

Basic Qualifications

Bachelor’s degree in Cybersecurity, Systems Engineering, Computer Science, or a related technical field
Experience in cybersecurity, systems engineering, test and evaluation, systems assessment, or a related field
Foundational understanding of system and component functionality in a defense, aerospace, or other mission-critical environment
Familiarity with cybersecurity requirements, architectures, and risk management concepts
Experience researching, analyzing, and documenting technical problems or findings
Experience using Microsoft Office applications, including Word, Excel, and PowerPoint
Effective written and verbal communication skills, with the ability to explain technical information to varied audiences
Possess or be willing to obtain an Information Assurance Technical Level II certification or higher, such as CompTIA Security+
Active Secret clearance, with the ability to obtain and maintain a Top Secret clearance
Must be a U.S. citizen

Desired Skills

Exposure to threat analysis, cybersecurity risk assessments, or related engineering analysis
Familiarity with Department of Defense or Space Force cybersecurity regulations and processes
Exposure to Security Technical Implementation Guide (STIG) tools, vulnerability assessment tools, or the Assured Compliance Assessment Solution (ACAS)
Familiarity with the Defense Information Systems Agency (DISA) Enterprise Mission Assurance Support Service (eMASS)
Experience with cybersecurity testing, evaluation, or compliance documentation
Exposure to scripting or programming languages
Familiarity with CAMEO, Model-Based Systems Engineering (MBSE), or other systems engineering tools
Prior experience supporting space, missile, naval, or other weapons systems
Exposure to penetration testing or vulnerability assessment planning and execution
Ability to work independently, manage priorities, and meet schedule commitments in a deadline-driven environment
Self-starter with strong analytical, problem-solving, and collaboration skills

#LMSpaceCyberEng

Pay Information Full-Time Salary Range: $110300.00 - $204900.00 At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow - both professionally and personally. The salary range for this position is as listed on the requisition. Please note that the salary information listed 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(work location) and business considerations when extending an offer. Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.

Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.
For (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.

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