Mission-Critical Systems & Network Administrator (TS/SCI)

Quantum Sky; Bath Township (OH); On-site; USD 100,000 - 125,000; Full time

Benefits offered by this job

Health/Dental/Vision

401(k) match

Paid Time Off

Parental leave

Job summary

Quantum Sky is seeking a hands-on Mid-Level System Administrator to maintain a small mission-focused network enclave at NSIC. You will manage Windows servers/workstations, Active Directory, and security controls while coordinating with ISSO/ISSM to uphold cybersecurity posture.

Ideal candidates have 3–5 years of practical admin experience in secure DoD environments, strong networking skills, and the ability to work independently in a fast-paced setting. U.S. citizenship is required.

Qualifications

• 3-5 years hands-on system/network administration in a DoD/secure environment.
• Experience administering and troubleshooting switches/routers in operations.
• Knowledge of TCP/IP, IPv4, Subnetting, VLANs, 802.1Q, DNS/DHCP, NAC, and network troubleshooting.
• Proficiency with Windows and/or Linux, and Active Directory administration.
• Ability to diagnose problems independently and document changes clearly.
• U.S. Citizenship and DoD IAT Level II equivalent certification is required.

Responsibilities

• Administer, maintain, and troubleshoot a small network enclave supporting mission requirements.
• Install, configure, and maintain Windows servers and workstations.
• Administer Active Directory accounts, groups, permissions, GPOs, and security settings.
• Monitor system and network health and drive issues to resolution.
• Perform patching, updates, and routine maintenance.
• Support backup, recovery, and continuity planning.
• Diagnose hardware, OS, application, and network issues and implement fixes.
• Maintain enclave IT/network equipment lifecycle and documentation.
• Configure and troubleshoot switches, routers, VLANs, and network interfaces.
• Coordinate with cybersecurity personnel to ensure compliance and posture.

Skills

TCP/IP

IPv4 addressing

VLANs

Active Directory

Windows & Linux

Troubleshooting

Documentation

Oral & written comms

Tools

PowerShell

Bash

Python

Job description

Quantum Sky is seeking a hands-on Mid-Level System Administrator to maintain a small mission-focused network enclave at NSIC. You will manage Windows servers/workstations, Active Directory, and security controls while coordinating with ISSO/ISSM to uphold cybersecurity posture.

Ideal candidates have 3–5 years of practical admin experience in secure DoD environments, strong networking skills, and the ability to work independently in a fast-paced setting. U.S. citizenship is required.