Systems Administrator Janesville, WI

Systems Administrator (Hybrid)

We're looking for a Systems Administrator to join a collaborative IT team responsible for supporting and modernizing a hybrid Microsoft infrastructure. This role combines day-to-day systems administration with infrastructure projects, cloud migration initiatives, and Tier 3 support. The ideal candidate enjoys solving technical challenges, improving system reliability, and helping drive a cloud-first strategy.

Responsibilities

• Administer Microsoft 365 services including Exchange Online, Teams, SharePoint, and One Drive.
• Manage Entra  (Azure Active Directory), hybrid identity, and user access.
• Support Windows server infrastructure in both physical and virtual environments.
• Maintain VMware and/or Hyper-V virtualization platforms.
• Assist with the migration of on-premises infrastructure and workloads to Microsoft Azure.
• Configure and support Microsoft Teams Phone, including call routing and policies.
• Manage networking infrastructure including switches, wireless access points, and firewalls.
• Implement security best practices including MFA, Conditional Access, and identity management.
• Monitor infrastructure health, system performance, backups, and disaster recovery.
• Troubleshoot complex infrastructure issues and serve as a Tier 3 escalation resource.
• Develop and maintain technical documentation and standard operating procedures.
• Collaborate with IT team members on infrastructure improvements and strategic initiatives.
• Provide occasional support for Tier 1 and Tier 2 issues while mentoring junior IT staff.