Information System Security Engineer

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.