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Senior Information Systems Security Engineer

ManTech International

ManTech International seeks a Senior Information Systems Security Engineer to secure mission-critical systems for U.S. defense and intelligence customers. You will design and harden secure architectures, drive RMF and NIST 800-53 compliance, and lead risk assessments and vulnerability remediation. Responsibilities include implementing security controls and tools, supporting accreditation, and responding to incidents. You’ll collaborate with cross-functional teams in a mission-focused, highly ethical environment that emphasizes innovation, professional growth, and continuous learning in cyber and enterprise IT.

Vacancy posted 8 hours ago
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