Senior Information System Security Engineer

Job description

General information Requisition #: R66840: Locations: USA-DC-Washington: Posting Date: 03/27/2026 Security Clearance Required: TS/SCI: Remote Type: Onsite: Time Type: Full time: Description & Requirements: Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH! MANTECH seeks a motivated, career and customer-oriented Senior Information System Security Engineer (ISSE) to join our team in Washington, D.C., Chantilly, VA or Quantico, VA. Responsibilities include, but are not limited to: - Define and implement cybersecurity requirements, architectures, and secure system designs across information systems and network environments - Design, develop, and integrate security solutions, including Cross Domain Solutions (CDS), to support secure data flow and system interoperability...