Hiring: Cyber Systems Security Engineering Sr - E3 Company: Lockheed Martin Location: Grand Prairie, TX Job Posted Time: 2026-09-16 13:25:42 Employment Type: Full-time Target Skills & Keywords : Embedded Systems, IAM, RTOS, SSE, Secret Clearance, Security Clearance About the job Experience: •For a level 3, we typically look for a Bachelors degree from an accredited college in a related discipline, or equivalent experience/combined education, with 5 years of professional experience; or 3 years of professional experience with a related Masters degree, or equivalent experience/combined education. Required Skills: •What You Will Be Doing •Assessing and mitigating System Security threats/risks throughout the embedded Weapon System development life cycle. •Validating System Security Engineering requirements decomposition, allocation and analysis for embedded Weapon Systems. •Implementing System Security Engineering solutions hardware and software. •Verifying implementation of system security requirements. •Designing, implementing, deploying, and maintaining state of the art System Security architectures and countermeasures to protect and enable innovative new Lockheed Martin Missiles and Fire Control products. •Analyzing weaknesses, vulnerabilities and threats against System Security posture on product designs. •Prototyping and testing System Security countermeasures that defend against cyber-attacks against Lockheed Martin Missiles and Fire Control Weapon System products. Qualifications: •Implementing System Security requirements on DoD systems to meet U.S. government compliance requirements. •Possess an approved DoD 8570 baseline certification for IAT/IAM Level II or ability to obtain certification within 6 months of start date in order to meet program requirements. •Must be a US citizen - this position requires the ability to obtain a DoD Secret security clearance with an Interim Secret prior to start. •5 years of professional experience; or 3 years of professional experience with a related Masters degree, or equivalent experience/combined education. Compensation: •Flexible work environment (work from home / hybrid options) •Competitive benefits and rewards package Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!