3794 information system security engineer jobs found

Refine Search
Refine Search
information system security engineer
Back to job list
Back

Information System Security Engineer

SAIC
Apply Now
Arlington County, Arlington, VA, USA
Jul 31, 2026

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. 

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. 

Job ID

2614441

Security Clearance

TS/SCI
About SAIC

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions.

Go to job list