System Administrator (Top Secret/SCI with Full Scope Poly to start Clearance Required)

North Point Technology is looking to hire a senior System Administrator to support a mission-critical RF and optical capabilities program. This role requires an active Top Secret/SCI clearance with Full Scope Polygraph. The position blends enterprise system administration across Linux and Windows environments with full-cycle network engineering, combining hands-on infrastructure work with automation and security compliance to deliver resilient, high-performance systems for demanding mission workloads. Responsibilities: The System Administrator will install, configure, and maintain RHEL/CentOS/Ubuntu/Debian and Windows Server instances while managing users, groups, Active Directory, and local security principals. The incumbent will provision and manage storage solutions including LVM, RAID, SMB, and NFS, and will perform system hardening, patching, and vulnerability remediation against DoD STIG and CIS baselines. Automation responsibilities include developing Ansible playbooks and roles for Linux and Windows workloads, writing Bash, PowerShell, and Python scripts, and operating Ansible Tower/AWX for job scheduling and audit trails. Network engineering duties span the design, implementation, and troubleshooting of enterprise L2/L3 networks including VLANs, routing protocols, QoS, DHCP, and DNS, with specific focus on Arista EOS configuration, CloudVision provisioning, and eAPI/Ansible automation. The role enforces DoD 8570 IAT Level 2 standards, manages secrets and certificates, conducts vulnerability scans, and maintains RBAC across servers and network devices. The administrator will provide Tier 3 support and maintain documentation including designs, runbooks, and SOPs in Confluence or SharePoint with configuration libraries maintained in Git. Required Skills/Experience: Installation, configuration, and administration of RHEL, CentOS, Ubuntu, and/or Debian Linux servers Administration of Windows Server 2016, 2019, and/or 2022, including Active Directory, user and gr