💼 Full-Time Position

Senior Information Systems Security Engineer

🏢
ManTech
📍 Washington, DC, United States
📍
Location
Washington, United States
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Posted
June 20, 2026
Type
Full-Time
🎯

Full-Time Opportunity: This is a permanent, full-time position with a competitive package and real career growth potential.

Job Description

**MANTECH** seeks a motivated, career and customer-oriented **Senior** **Information Systems Security Engineer (ISSE)** to join our team in **Washington, D.C.** This is an **onsite** position.

The Information Systems Security Engineer (ISSE) will leverage their strong technical background and knowledge to support accreditation efforts, to include responding to/implementing/documenting required controls, and completing required tasks/actions.

**Responsibilities include but are not limited to:**

+ Designing secure architectures, hardware, operating systems, and software applications to ensure cybersecurity requirements are adequately addressed for the IS and Network Environment.
+ Designing, developing, and implementing network security measures and specific countermeasures that provide confidentiality, integrity, availability, authentication, and non-repudiation.
+ Integrating and implementing security protocols with Cross Domain Solutions (CDS)...