Information System Security Engineer (ISSE)

Standard Job Description

WHAT WE’RE DOING
At Lockheed Martin Rotary and Mission Systems, we're on a mission to drive innovation and uphold the highest standards of business ethics. We believe that by pushing the boundaries of visionary thinking, we can achieve exceptional results. As a Lockheed Martin employee, you'll have the opportunity to make a meaningful impact while working in an environment that values integrity and excellence. By leveraging your expertise in instructional design and technical training, you will play a critical role in enhancing the operational readiness of our Cyber & Intelligence teams and ensuring the success of high-stakes national security missions.

THE WORK
In this role, you're responsible for performing or reviewing technical security assessments of computing environments to identify points of vulnerability, non-compliance with established Information Assurance standards and regulations, and recommending mitigation strategies. Validate and verify system security requirements definitions and analysis, and establish system security designs. Design, develop, implement and/or integrate IA and security systems and system components including those for networking, computing, and enclave environments to include those with multiple enclaves and with differing data protection/classification requirements. Build IA into systems deployed to operational environments. Assist architects and systems developers in the identification and implementation of appropriate information security functionality to ensure uniform application of Agency security policy and enterprise solutions. Support the building of security architectures, enforce the design and implementation of trusted relations among external systems and architectures, and assess and mitigate system security threats/risks throughout the program life cycle. Contribute to security planning, assessment, risk analysis, risk management, certification and awareness activities for system and networking operations. Review certification and accreditation documentation providing feedback on completeness and compliance of its content.

WHY JOIN US
In this role you will have the opportunity to shape the future of technical proficiency within the Cyber & Intelligence domain, directly impacting the capabilities of those who protect our national security.
Our benefits are built to match the caliber of your work. Reliable, high performing, and mission ready. You’ll enjoy world class resources, mentorship, continuous learning, competitive compensation, comprehensive benefits, and a supportive work life balance—all within a culture that values innovation, integrity, and collaboration.

Know someone? The External Referral Program lets you submit a referral. If your referral is hired, you'll receive a $3000 payment!
PLUS you may be eligible for up to a $25K sign on bonus for you to join the team.

Additional program roles found by searching #RMSIL2026 and #LMCyberJobs #RMSROC #ONELMHOTJOBS

Basic Qualifications

• Fourteen (14) years experience as an ISSE on programs and contracts of similar scope, type, and complexity is required
• Bachelor’s degree in Computer Science, Information Assurance, Information Security System Engineering, or a related discipline from an accredited college or university is required
• DoD 8140 compliance with IASAE Level 2 certification is required
• CISSP Certification is required
• Four (4) years of ISSE experience may be substituted for a bachelor’s degree
• Current US Security Clearance with Polygraph within the last 7 years is required

Desired Skills

• Secure networking & enclave environment integration
• IA architecture and system component integration
• IA policy, procedures, and workforce structure application
• Client and project team interaction
• Trusted relationships enforcement for external systems and architectures
• Security planning, assessment, and risk analysis/management
• Government data handling and classification requirements identification
• Multi-enclave system design with differing protection classifications
• System-level security solution recommendation