Network & Systems Administrator with Security Clearance

Air Combat Effectiveness Consulting Group (ACE Group), LLC; Hooksett (NH); On-site; USD 70,000 - 100,000; Full time

Job summary

Air Combat Effectiveness Consulting Group, LLC is seeking a diligent Network & Systems Administrator to maintain enterprise servers and networks, troubleshoot connectivity, and support DoD-compliant environments. You will manage domain, LAN, WAN, and wireless networks while upgrading systems and ensuring stable performance.

The role requires hands-on IT administration, knowledge of TCP/IP, VPNs, and security controls, plus experience with Cisco/Juniper/Ubiquiti/Meraki gear.

Qualifications

• CompTIA Security+ certification required.
• 2–5 years of hands-on IT system administration or network support.
• Strong understanding of TCP/IP, DNS, DHCP, VPN, VLANs, routing and switching.
• Experience with Cisco, Juniper, Ubiquiti and Meraki hardware.
• Familiarity with firewalls, ACLs and secure network configuration.
• Ability to interpret and maintain network diagrams and documentation.

Responsibilities

• Monitor, maintain, and troubleshoot Domain, LAN, WAN, and wireless networks.
• Install, configure, and support server and network hardware (DCs, switches, routers, firewalls, APs).
• Support secure network environments and RBAC; align with RMF requirements.
• Assist with system and network upgrades, patching, and modernization efforts.
• Diagnose and resolve connectivity, performance, and hardware issues.
• Perform routine administration, backups, and documentation.
• Support VoIP systems, network cabling, and infrastructure components.
• Collaborate with IT and cybersecurity teams to support mission critical operations.
• Maintain network asset documentation and change logs.
• Ensure compliance with DoD security standards and cybersecurity best practices.

Skills

IT admin experience

Network troubleshooting

TCP/IP/DNS/DHCP

VPN, VLANs, routing

Documentation

2–5 years hands-on IT admin

Education

CompTIA Security+ certification

Tools

Cisco gear

Juniper gear

Ubiquiti gear

Meraki gear

Job description

\u003d\u003d Network & Systems Administrator Air Combat Effectiveness Consulting Group, LLC Network & Systems Administrator The Network & Systems Administrator is responsible for maintaining, troubleshooting, and supporting an organization’s computer domain servers and networks for corporate enterprise systems along with systems in a secure environment. This role ensures stable enterprise/network performance, assists with server/network upgrades, resolves connectivity issues, and provides technical support for server/network hardware, software, and infrastructure.

Key Responsibilities

• Monitor, maintain, and troubleshoot Domain, LAN, WAN, and wireless networks


• Install, configure, and support server and network hardware (domain controllers, application servers, switches, routers, firewalls, access points)


• Support secure network environments, including role based access controls and RMF requirements


• Assist with system/network upgrades, patching cycles, and modernization efforts


• Diagnose and resolve connectivity, performance, and hardware issues


• Perform routine administration/network maintenance, backups, and documentation


• Support VoIP systems, network cabling, and infrastructure components


• Collaborate with IT and cybersecurity teams to support mission critical operations


• Maintain network asset documentation and change logs


• Ensure compliance with DoD security standards and cybersecurity best practices

Requirements

• CompTIA Security+ certification (required)


• 2–5 years of hands-on IT system administration and/or network support experience


• Strong understanding of TCP/IP, DNS, DHCP, VPN, VLANs, routing, and switching


• Experience with networking hardware from vendors such as Cisco, Juniper, Ubiquiti, Meraki


• Familiarity with firewalls, ACLs, and secure network configuration


• Ability to interpret and maintain network diagrams and documentation


• Strong troubleshooting and problem-solving abilities


• Additional certifications such as Network+ or CCNA are preferred


• Basic understanding of Microsoft Azure cloud systems Salary Description $70,000-$100,000