Cyber Systems Security Engineering Sr - E3

Job Description

Standard Job Description

What We’re Doing
At Lockheed Martin Rotary and Mission Systems, we are shaping the future of defense and security through innovation, integrity, and visionary thinking. Our teams apply the highest standards of business ethics and technical expertise to design solutions that safeguard our nation and allies. Every day, we push boundaries to ensure mission success—and we invite you to be part of this critical work.

The Work
We are seeking a highly motivated Cyber Systems Security Engineer Sr to support the design, implementation, hardening, and sustainment of secure mission systems and IRAD environments. This role requires strong technical expertise in systems engineering, cybersecurity, infrastructure security, automation, and DevSecOps practices. The ideal candidate will support secure architecture development, system accreditation activities, continuous monitoring, vulnerability management, and automation of security controls within CI/CD pipelines. The Cyber Systems Engineer will work closely with software engineers, infrastructure teams, customer representatives, security architects, program leadership, and operational users to ensure mission systems remain secure, resilient, and compliant.
Key Responsibilities
Design and implement secure system architectures for enterprise and mission-critical environments. Apply cybersecurity engineering principles across the full system lifecycle, including requirements, design, implementation, verification, deployment, and sustainment. Implement and maintain DevSecOps pipelines integrating automated security testing and compliance validation. Integrate tools such as SAST, DAST, container scanning, IaC scanning, and software composition analysis into CI/CD workflows. Automate security control validation and compliance reporting using scripting and infrastructure automation tools. Collaborate with cross-functional teams to ensure secure software delivery and continuous compliance. Conduct cyber risk assessment activities, including vulnerability analysis, and evaluation of mitigation strategies. Support incident response, remediation efforts, engineering roadmaps, and cyber resilience planning when required.
Please note:

This position requires the ability to obtain and maintain a DoD government clearance at the Top Secret level.

This position is based out of King of Prussia, PA. Candidates must be comfortable working in operationally demanding settings, including secure facilities and OCONUS deployments.
Who We Are
We are Lockheed Martin, a global security and aerospace leader. Our Rotary and Mission Systems (RMS) business area delivers solutions that connect people, protect freedom, and advance the state of technology in areas such as naval systems, radar, cyber, and missile defense.

Who You Are
You are a mission-driven engineer with a strong background in cybersecurity and systems engineering. You thrive in collaborative environments and are passionate about applying your skills to safeguard systems against evolving threats. Your ability to assess risks, develop secure designs, and validate solutions makes you a trusted partner in ensuring mission success.

Why Join Us
At Lockheed Martin, your skills, training, and education are valued—and your future is limitless. You’ll join a team that empowers innovation, supports professional growth, and makes a tangible impact on global security. From day one, you’ll be part of something bigger: protecting what matters most.

Basic Qualifications

Bachelor’s degree in Cybersecurity, Systems Engineering, Computer Science, Information Technology, or related STEM discipline.

Minimum 5+ years of experience in cybersecurity, systems engineering, information assurance or relevant experience

Experience securing Linux and/or Windows operating systems in enterprise or mission environments.

Experience with Automation tools specifically Ansible and familiarity with deployment automation

Working knowledge of cybersecurity frameworks such as the following and associated documentation:
NIST SP 800-53

NIST 800-171

SSP
SOP
SCTM

Experience with vulnerability scanning and remediation tools.

Experience with scripting languages and automation tools

Ability to obtain and maintain a DoD Top Secret clearance (or higher, as required).

Desired Skills

Possess an approved DoD 8570 baseline certification for IAT Level II (CISSP, CAP, etc.)

Experience supporting DoD weapon systems, Software Defined Radio platforms, or classified mission systems.

Experience with Containerization technologies to include Kubernetes

Experience with Virtualization platforms/hypervisors

Experience implementing container security and Kubernetes hardening.

Familiarity with SIEM Tools deployment and administration specifically Elastic

Experience with Zero Trust architecture and cyber resiliency engineering.

Experience supporting environmental handling:
Controlled Unclassified Information (CUI)

SIPR Environments
Air-gapped or disconnected systems

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.