Mid-Level System Administrator Security Clearance

Position: Mid-Level System Administrator with Security Clearance
Location: Wright-Patterson AFB

Mid-Level System Administrator Quantum Sky is searching for a hands on Mid-Level System Administrator with strong networking experience to support and maintain a small, mission-focused network enclave at the National Space Intelligence Center (NSIC). This position is responsible for the day-to-day operation, maintenance, troubleshooting, and security of server/workstation systems and network infrastructure, including managed switches and routers. The System Administrator will serve as a key technical resource for the enclave and will work directly with customer personnel to resolve system and network issues and support mission requirements.

The System Administrator will also work closely with the contractor Information System Security Officer (ISSO) and government Information System Security Manager (ISSM) to maintain the enclave's cybersecurity posture and implement required technical security controls. The successful candidate will be comfortable working independently, troubleshooting issues across the network and systems stack, taking ownership of technical problems through resolution, and coordinating with customer, cybersecurity, and other technical personnel as required.

The ideal candidate has 3–5 years of practical systems administration experience combined with demonstrated hands-on experience configuring and troubleshooting network infrastructure in a secure enterprise or DoD environment. Responsibilities:
Systems and Enclave Administration
* Administer, maintain, and troubleshoot a small network enclave supporting mission and customer requirements.

* Install, configure, maintain, and troubleshoot Windows servers and workstations.

* Administer Active Directory accounts, groups, permissions, Group Policy, and related security settings.

* Monitor system and network health, identify faults or performance issues, and drive problems through resolution.

* Perform system patching, software updates, configuration changes, and routine preventive maintenance.

* Support backup, recovery, and continuity requirements for network systems.

* Diagnose hardware, software, operating system, application, and network-related issues and determine appropriate corrective actions.

* Support installation, replacement, configuration, and lifecycle maintenance of enclave IT and network equipment.
Network Administration
* Configure, maintain, and troubleshoot managed Ethernet switches, routers, network interfaces, VLANs, trunks, and associated network infrastructure.

* Troubleshoot network connectivity and performance issues using a solid understanding of TCP/IP, IPv4 addressing, subnetting, routing, DNS, DHCP, VLANs, and network access controls.

* Troubleshoot network issues from the physical layer through network and application connectivity to isolate faults and restore service.

* Support network configuration changes, equipment replacement, cable/port troubleshooting, and other day-to-day network administration activities.

* Maintain accurate network configuration information and network diagrams.
Cybersecurity Support and Coordination
* Work closely with the ISSO and ISSM to maintain the security and compliance posture of the network enclave.

* Implement and maintain system and network security configurations in accordance with applicable DoD, organizational, and local cybersecurity requirements.

* Apply required system hardening, security configurations, patches, and vulnerability remediation actions to servers, workstations, switches, routers, and other enclave components.

* Support vulnerability scanning and remediation activities by investigating findings, implementing corrective actions, and documenting remediation status.

* Provide technical information, configuration data, system documentation, and other artifacts required to support cybersecurity assessments and authorization/compliance activities.

* Assist the ISSO and ISSM with investigation and resolution of system or network security issues.

* Coordinate proposed system and network configuration changes with cybersecurity personnel as required.

* Maintain accurate system and network configuration documentation and security-related technical records.
Customer…