System/Infrastructure Administrator

S2Technologies is seeking a hands-on System/Infrastructure Administrator to support the NCRC ORLSS environment in Orlando, Florida. This role maintains and troubleshoots the systems and network infrastructure used for cyber range operations. The strongest candidate can work across Windows, Rocky Linux/RHEL, VMware, and switching to find and resolve issues that span more than one platform., * Build, maintain, and troubleshoot Windows and Linux systems and VMware virtual machines supporting range operations.

• Configure switch ports and VLANs to meet system connectivity and segmentation needs.
• Investigate infrastructure incidents, document findings and corrective actions, and coordinate with other technical staff when an issue crosses system boundaries.
• Support infrastructure changes and validate that systems and network connections work as intended afterward.
• Maintain accurate configuration and troubleshooting documentation.

Required Security Clearance:

• Active Top Secret clearance with SCI eligibility.

Required Certification(s):

• CompTIA Security+ certification (DoD 8570 IAT Level II compliant).
• Current CCNA required; CCNP preferred., * This is a full-time, primarily on-site position at the NCRC-ORL facility in Orlando, FL.
• Occasional travel may be required to support events at other NCRC facilities.
• Flexible work hours, including occasional after-hours support, may be necessary.
• Position involves physical access to network/server spaces and occasional equipment handling.

• Bachelor’s degree in a technical discipline and a minimum of 5 years of relevant experience.
• Windows administration: Administer and troubleshoot Windows systems, including services, permissions, network settings, and general system configuration.
• Linux administration: Work with Rocky Linux or other RHEL-based systems using the command line to manage services, permissions, packages, and system issues.
• VMware virtualization: Deploy and configure virtual machines; manage snapshots and resource allocations; troubleshoot basic vSphere and vCenter issues.
• Layer 2 networking: Configure and troubleshoot VLANs, access and trunk ports, switches, MAC addressing, and network segmentation.
• Network troubleshooting: Diagnose cabling, interface, switch port, VLAN assignment, link status, and connectivity problems at Layers 1 and 2.
• General systems troubleshooting: Trace issues across operating systems, virtual machines, hosts, and network connections to identify the cause and restore service.
• Top Secret (TS) with SCI eligibility, * Bachelor’s degree in Cybersecurity, Information Technology, Engineering, Computer Science, Applied Technology, or related technical discipline is required.