Senior System Administrator

Base pay range

$50.00/hr - $55.00/hr

Senior System Administrator

Location: Mequon/Milwaukee
Job Type: 6-Month Contract-to-Hire
Environment: Hybrid
Pay Rate: $50 to $55 per hour on W2 with Benefits
Salary Conversion: $85,000 to $105,000 plus bonus
No 3rd parties & No Relocations

We are seeking a skilled System Administrator to join our dynamic IT team. You ll play a critical role in managing, maintaining, and building modern Microsoft-based infrastructure environments. This position is ideal for someone passionate about working with cutting-edge technologies, eager to build new systems, and ready to help shape the future of IT.

• Administer, support, and optimize Windows Server environments.
• Manage and maintain Active Directory (
  AD
  ),
  Azure Active Directory (
  AAD
  ), and Entra identity services. (Must Have Hands on experience at a High Level)
• Configure and enforce Group Policy Objects (
  GPOs
  ) to maintain system and user environment standards. (Must Have Hands on experience at a High Level)
• Support and troubleshoot Remote Desktop Services (
  RDS
  ) environments.
• Manage Office 365 services including Exchange Online, SharePoint Online, Teams, and related administration tasks. (Must Have Hands on experience at a High Level)
• Deploy, manage, and maintain virtual environments using VMware and Hyper-V platforms. (Must Have Hands on experience at a High Level)
• Implement, monitor, and support services within the Microsoft Azure cloud environment.
• Assist in building new infrastructure, including greenfield and hybrid environments.
• Monitor system performance and ensure system availability, reliability, and security.
• Collaborate with engineering teams to design, test, and deploy new tools and services.
• Document environment changes, configurations, and procedures.
• Participate in scheduled on-call rotation and incident response as needed.

• 3-5 years of experience supporting Microsoft infrastructure environments.
• Strong experience with Windows Server (2016, 2019, 2022).
• Hands-on expertise with Active Directory
  , Azure Active Directory
  , Entra , and Office 365 administration.
• Solid understanding of Group Policy management and troubleshooting.
• Working knowledge of VMware vSphere and Hyper-V virtualization technologies.
• Experience administering Azure infrastructure services (VMs, storage, networking).
• Familiarity with Remote Desktop Services configuration and support.
• Strong troubleshooting skills across networking, identity, cloud, and server issues.
• Excellent communication and documentation skills.

• Microsoft certifications (e.g.,
  Azure Administrator Associate (AZ-104),
  Microsoft 365 Certified: Enterprise Administrator Expert
  , or equivalent).
• Experience with scripting (Power Shell, CLI) for automation tasks.
• Familiarity with hybrid identity solutions and cloud migration projects.
• Knowledge of modern security best practices in identity and access management.

You ll have the opportunity to work on building brand-new environments and take part in deploying the latest tools that are actively shaping the future of information technology. We invest in our team s growth, providing access to the newest technologies and offering exciting, future-focused projects. If you re passionate about infrastructure innovation, enjoy problem-solving, and want to be a key player in a forward-thinking IT organization, we want to hear from you.

• Mid-Senior level

• Full-time

• Information Technology

• Information Services

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