TSSCI Systems Security Engineer

Required Skills & Experience

Active TS/SCI clearance Expertise in enterprise patch management with MECM/SCCM or WSUS ACAS vulnerability/compliance scanning experience (Tenable Nessus also acceptable) Systems Administration experience with Windows 11, Windows Server 2022/2025, and RHEL/Linux Splunk/SIEM configuration experience (alert thresholds, log integration & configuration) Experience with GPO management and STIG compliance PowerShell and/or Bash scripting Active DoD 8570 IAT Level II certification, such as Security+ or CISSP

Nice to Have Skills & Experience

Active Directory/LDAP and PKI knowledge VMware experience (vSphere, vCenter, and ESXi) RMF/Information Assurance experience Enterprise firewall and networking knowledge including TCP/IP, VLANs, subnetting, ports, and protocols Agile/Jira experience

Job Description

A client of Insight Global is seeking System Security Engineers with specialization in Patch Management to support a custom, air-gapped Department of Defense IT environment. This role provides advanced systems support and deploys new capabilities across Windows and Linux environments. Responsibilities will include patch management, STIG compliance, system security, identity management, virtualization, documentation, and cyber-risk mitigation. The position will work primarily onsite in a closed-area environment and may require up to 10% travel.