Information System Security Engineer
Job in
Arlington, Arlington County, Virginia, 22201, USA
Listed on 2026-07-10
Listing for:
SAIC
Full Time
position Listed on 2026-07-10
Job specializations:
-
IT/Tech
Cybersecurity, Network Security, Information Security & Data Protection, Systems Engineer
Job Description & How to Apply Below
Location: Arlington, VA, US
Date Posted:
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: _SITE
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.
Education Requirements:
- Bachelor's degree and five (5) years experience;
Four (4) years' experience can be considered in lieu of degree.
- Must possess and maintain an active TS/SCI clearance; ship required.
- 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, Clear Pass), 802.1X Wired/Wireless Authentication, and Device Posture Validation.
- Red Hat Enterprise Linux and Windows Server administration.
- Scripting language such as Power Shell or Python.
- Active Directory and Group Policy administration.
- Certifications:
CISSP / CASP+ / CISM / CCSP, Security+, Azure Security or Administrator Certifications, Network Security Certifications.
- Experience working in a Microsoft Azure cloud environment.
SAIC is a premier technology integrator providing full life cycle services and solutions in the technical, engineering, intelligence, and enterprise information technology markets. SAIC is Redefining Ingenuity through its deep customer and domain knowledge to enable the delivery of systems engineering and integration offerings for large, complex projects. SAIC's approximately 15,000 employees are driven by integrity and mission focus to serve customers in the U.S. federal government.
Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $4.5 billion. For more information, visit For information on the benefits SAIC offers, see .
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