Cyber System Security Engineer

ManTech International seeks a Cyber System Security Engineer to secure mission-critical systems for U.S. defense and intelligence clients. In this role you will design and implement secure architectures, harden operating systems and networks, and support vulnerability assessment and remediation. You will collaborate with multidisciplinary teams to embed security throughout the system lifecycle while supporting compliance and accreditation efforts. ManTech offers a mission-focused, collaborative culture with robust training, career growth, and opportunities to innovate in advanced cyber and IT solutions.