Senior Information System Security Officer

  • ManTech International
  • Chantilly, Virginia
  • 08/01/2026
Full time Information Technology Telecommunications

Job Description

ManTech International is seeking a Senior Information System Security Officer to join our Information Technology & Cybersecurity department. In this role, you will lead the development, implementation, and enforcement of security policies to protect mission-critical national security systems. You will manage RMF/DIACAP/JSIG compliance, support system accreditation, perform risk assessments, and coordinate with engineering teams to implement secure architectures. ManTech offers a culture of innovation, integrity, and respect, plus the opportunity to work on cutting-edge cyber capabilities that safeguard our nation's most sensitive information.