Infrastructure Administrator; in office - Grand Rapids, MI

Job in Grand Rapids, Kent County, Michigan, 49503, USA

Listing for: 28 Technologies LLC

Full Time position
Listed on 2026-07-23

Job specializations:

IT/Tech
Systems Administrator, Windows Server, Cybersecurity, Network Administrator

Position: Infrastructure Administrator (in office - Grand Rapids, MI)

Infrastructure Administrator

The Infrastructure Administrator supports the firm's server, virtualization, network, storage, and Microsoft infrastructure. This position provides Tier III operational support while assisting with infrastructure projects, cybersecurity initiatives, and modernization efforts.

The successful candidate will have a strong Windows Server and Network Engineering background with a desire to expand into cloud and security technologies.

Primary Responsibilities

Windows Server Administration

Windows Server, Active Directory/DNS/DHCP
Group Policy, File Servers & Print Services
User administration
Windows patching & Server maintenance

Virtualization

Hyper-V, VDI/Virtual Desktop
Server Creation/Management/Administration

Microsoft 365

Microsoft 365 administration
Teams, SharePoint, One Drive
User provisioning & Entra architecture

Networking

Switch installation
VLAN assignments & Port configurations
Wireless troubleshooting
Firewall rule implementation
VPN user support
SD-WAN

Security

Vulnerability remediation
MFA administration
Security audits

Monitoring

Server, Backup & Network alerts

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