Information System Security Engineer

Information System Security Engineer

Job ID: 2614441

Location: Arlington, VA, United States

Date Posted: Jul 9, 2026

Category: Cyber

Subcategory: Cyber Engineer

Schedule: Full-Time

Shift: Day Job

Travel: No

Minimum Clearance Required: TS/SCI

Clearance Level Must Be Able to Obtain: None

Potential for Remote Work: On-Site

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Job Description

Description

SAIC is seeking an Information System Security Engineer (ISSE) to join our team. This position is in Arlington, VA and requires an active Top Secret/SCI clearance.

Job responsibilities include, but are not limited to:

• Implement and maintain cybersecurity controls in accordance with DoD policies, including NIST SP 800-53, RMF, and applicable STIGs.
• Monitor network and system security, analyze security events, and respond to incidents in a timely manner.
• Conduct vulnerability assessments and remediation activities using approved DoD tools and processes.
• Collaborate with IT, engineering, and program teams to ensure security requirements are integrated into system designs and operations.
• Assist in the preparation, review, and maintenance of security documentation, including System Security Plans (SSPs), Plan of Action & Milestones (POA&Ms), and risk assessments.
• Support the Risk Management Framework (RMF) process for system accreditation and continuous monitoring, including activities related to obtaining and maintaining Authority to Operate (ATO).
• Participate in security audits, inspections, and assessments, and assist with remediation of findings.
• Stay current on emerging cyber threats, vulnerabilities, and DoD cybersecurity directives.

Qualifications

Education Requirements:

• Bachelor's degree and five (5) years experience; Four (4) years'' experience can be considered in lieu of degree.

Clearance Requirements:

• Must possess and maintain an active TS/SCI clearance; US Citizenship required.

Required Skills:

• Experience with DoD cybersecurity tools (e.g., ACAS, ESS, SIEM platforms, Evaluate-STIG, and STIG Viewer).
• Familiarity with network protocols, firewalls, intrusion detection/prevention systems, and endpoint security.
• Experience with Network Access and Authentication to include RADIUS (NPS, ISE, ClearPass), 802.1X Wired/Wireless Authentication, and Device Posture Validation.
• Red Hat Enterprise Linux and Windows Server administration.
• Scripting language such as PowerShell or Python.
• Active Directory and Group Policy administration.
• Certifications: CISSP / CASP+ / CISM / CCSP, Security+, Azure Security or Administrator Certifications, Network Security Certifications.

Desired Skills:

• Experience working in a Microsoft Azure cloud environment.

Target salary range: $120,001 - $160,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.

Overview

SAIC accepts applications on an ongoing basis and there is no deadline.

SAIC is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.

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