Senior Network Administrator - Multi-Site Onsite Lead

LeachGarner, Inc; Downtown (MA); On-site; USD 90,000 - 110,000; Full time

Benefits offered by this job

Paid holidays

Paid vacation

Personal days

Sick leave

401(k) match

Parental leave

Medical/dental/vision insurance

Flexible Spending Account

Life insurance

Long-term disability

Discount program

Annual incentive bonus

Job summary

LeachGarner, a division of Richline Group, is seeking a Network Administrator to lead infrastructure operations at our Attleboro, MA location and provide oversight for our Roanoke, VA facility. This hands-on IT role focuses on reliable, secure, and scalable infrastructure across multiple locations, with on-site work required in Attleboro daily.

You will manage enterprise networks, Windows Server, Active Directory, and Microsoft 365, while supporting security, backups, and disaster recovery.

Qualifications

• 5-8 years of systems, network, or infrastructure administration experience.
• Strong Windows Server and Active Directory expertise.
• Experience with routing, switching, VPNs, wireless, and firewalls.
• VMware and/or Hyper-V experience.
• Microsoft 365 and hybrid identity administration.
• Strong troubleshooting, communication, and documentation skills.
• Ability to travel periodically to various locations for implementations.

Responsibilities

• Administer enterprise networks, switching, routing, wireless, VPNs, firewalls, and WAN connectivity.
• Manage Windows Server, Active Directory, DNS, DHCP, and Microsoft 365 services.
• Support Entra ID, MFA, virtualization platforms, backup and disaster recovery.
• Coordinate infrastructure security, patching, vulnerability remediation, and incident response.
• Provide technical leadership for Virginia operations.
• Lead multi-site infrastructure projects and maintain technical documentation.
• Participate in on-call and after-hours support rotations.

Skills

Communication

Documentation

Troubleshooting

Travel

Tools

Windows Server

Active Directory

DNS/DHCP

Microsoft 365

VMware

Hyper-V

VPNs

Firewalls

Fortinet

Cisco

Job description

LeachGarner, a division of Richline Group, is seeking a Network Administrator to lead infrastructure operations at our Attleboro, MA location and provide oversight for our Roanoke, VA facility. This hands-on IT role focuses on reliable, secure, and scalable infrastructure across multiple locations, with on-site work required in Attleboro daily.

You will manage enterprise networks, Windows Server, Active Directory, and Microsoft 365, while supporting security, backups, and disaster recovery.