Senior IT Infrastructure Lead — Windows, Linux & Cloud

Integrity Staffing Solutions; Town of Newark (WI); On-site; USD 90,000 - 120,000; Full time

Job summary

Integrity Staffing Solutions in Newark, DE is seeking a Senior IT Infrastructure Administrator to manage Windows, Linux, AD, virtualization, Microsoft 365, and cloud environments, ensuring secure, reliable systems.

The role supports lifecycle planning, disaster recovery, automation, and on-call rotation, requiring strong troubleshooting and project management skills, with ability to work independently and on-site.

Qualifications

• Bachelor’s degree in CS/IT or related field or equivalent experience.
• 5+ years of systems administration experience.
• 3+ years with virtualization platforms such as VMware, Hyper-V, Citrix Hypervisor, Nutanix AHV, or Linux KVM.
• Strong experience with Active Directory, Windows Server, DNS, DHCP, Group Policy, and email administration.
• Hands-on Microsoft 365 administration experience.
• Familiarity with Azure or AWS.
• Strong troubleshooting, project management, communication, and organizational skills.
• Ability to work independently and manage multiple priorities.

Responsibilities

• Administer Windows and Linux servers, Active Directory, GPO, DNS, DHCP, identity management, and authentication services.
• Manage physical, virtual, and cloud infrastructure, including VMware and Azure/AWS environments.
• Support Microsoft 365, Exchange Online, SharePoint Online, Intune, and Autopilot.
• Maintain backups, storage, monitoring tools, patching, vulnerability remediation, and disaster recovery capabilities.
• Implement infrastructure upgrades, automation, new technologies, and performance improvements.
• Support infrastructure planning, budgeting, vendor management, licensing, audits, and regulatory compliance.
• Participate in rotating 24/7 on‑call production support.

Skills

Windows administration

Linux administration

Active Directory

Cloud infrastructure

Project management

Education

Bachelor’s degree in Computer Science or related field

Tools

VMware

Hyper-V

Citrix Hypervisor

Nutanix AHV

Linux KVM

Azure

AWS

Microsoft 365

Job description

Integrity Staffing Solutions in Newark, DE is seeking a Senior IT Infrastructure Administrator to manage Windows, Linux, AD, virtualization, Microsoft 365, and cloud environments, ensuring secure, reliable systems.

The role supports lifecycle planning, disaster recovery, automation, and on-call rotation, requiring strong troubleshooting and project management skills, with ability to work independently and on-site.