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