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Information Systems Security Engineer (ISSE)

Open Systems Technologies Corporation

Annapolis Junction, Maryland, United States Full-time July 04, 2026

Opportunity Description

Information System Security Engineer (ISSE)

Locations: Maryland
Clearance Required: Active TS/SCI with Polygraph
Citizenship: U.S. Citizenship Required
Certification Requirement: DoD 8570/8140 IASAE Level II Compliant Certification Required

Position Overview

Open Systems Technologies Corporation (OST) is seeking Information System Security Engineers (ISSEs) to support mission-critical Government programs. This role focuses on integrating cybersecurity engineering principles across system design, implementation, accreditation, and sustainment activities within complex classified environments.

The ISSE will support full Risk Management Framework (RMF) execution, Assessment & Authorization (A&A) activities, and continuous cybersecurity compliance efforts while working closely with system administrators, ISSOs, ISSMs, and system owners.

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Full-time Computer Occupations

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