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Principal Information Systems Security Engineer with Security Clearance

Fuse Engineering LLCAnnapolis Junction, MD🇺🇸United StatesPosted 13 Jul 2026

Why This Role Stands Out

This leadership role offers significant impact by safeguarding critical systems and shaping security architecture, perfect for experienced security engineers looking to advance their careers in a hybrid environment. You'll leverage your expertise to build robust security solutions and contribute to a highly reputable company. Apply now to join a dynamic team and make a real difference.

Quick Overview

Seniority
Leader
Employment type
Employee
Work mode
Hybrid
Location
Annapolis Junction, MD, United States
Posted
6 weeks ago
CSS

Job Description

Principal Information Systems Security Engineer

The Information Systems Security Engineer (ISSE) shall perform, or review, technical security assessments of computing environments to identify points of vulnerability, non-compliance with established Information Assurance (IA) standards and regulations, and recommend mitigation strategies. Validates and verifies system security requirements definitions and analysis and establishes system security designs.

Designs, develops, implements and/or integrates IA and security systems and system components including those for networking, computing, and enclave environments to include those with multiple enclaves and with differing data protection/classification requirements. Builds IA into systems deployed to operational environments. Assists architects and systems developers in the identification and implementation of appropriate information security functionality to ensure uniform application of Agency security policy and enterprise solutions. Supports the building of security architectures.

Enforce the design and implementation of trusted relations among external systems and architectures. Assesses and mitigates system security threats/risks throughout the program life cycle. Contributes to the security planning, assessment, risk analysis, risk management, certification and awareness activities for system and networking operations. Reviews certification and accreditation (C&A) documentation, providing feedback on completeness and compliance of its content.

Applies system security engineering expertise in one or more of the following to : system security design process; engineering life cycle; information domain; cross domain solutions; commercial off-the-shelf and government off-the-shelf cryptography; identification; authentication; and authorization; system integration; risk management; intrusion detection; contingency planning; incident handling; configuration control; change management; auditing; certification and accreditation process; principles of IA (confidentiality, integrity, non-repudiation, availability, and access control); and security testing.

Support security authorization activities in compliance with NSA/CSS Information System Certification and Accreditation Process (NISCAP) and DoD Risk Management Framework (RMF), the NIST Risk Management Framework (RMF) process, and prescribed NSA/CSS business processes for security engineering.

Requirements

TS/SCI w/ Polygraph Clearance Required

?Bachelor’s degree in Computer Science, Information Assurance, Information Security System Engineering, or related discipline from an accredited college or university is required.
Master’s degree in Computer Science, Information Assurance, Information Security System Engineering, or related discipline may be substituted for two (2) years of experience, reducing the requirement to eighteen (18) years of experience. Four (4) years of additional ISSE experience may be substituted for a bachelor’s degree.

Compliance with DoD 8570; IASAE Level 3; CISSP is required

Information Systems Security Engineering Professional (ISSEP) Certification is required.

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