Systems Administrator: Windows, AD, VMware & SQL

Integrated Systems Corp.; Mequon (WI); On-site; USD 70,000 - 80,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

401(k)

Profit sharing

Job summary

Integrated Systems Corp. in Mequon, Wisconsin is seeking a Systems Administrator to support our secure private cloud infrastructure and hosting environments.

You will install, configure, maintain, and monitor systems that support ISCorp’s hosted services and internal operations, ensuring reliability, performance, and security while delivering excellent service. The role emphasizes Windows Server and Active Directory administration, SQL Server management, virtualization (VMware, Hyper‑V, Citrix,

Qualifications

• Bachelor’s degree or equivalent work experience.
• 3+ years of hands-on Windows-based systems administration in enterprise environments.
• Proficiency with Active Directory, Group Policy, and Windows Server administration.
• Experience with SQL Server management and backup/restore procedures.
• Strong understanding of virtualization and hosting technologies (VMware, HyperV, Citrix, RDS).
• Scripting/automation familiarity (PowerShell, VBScript).
• Strong documentation, troubleshooting, and communication skills.

Responsibilities

• Administer and maintain Windows Server and desktop operating systems across production and development environments.
• Manage Active Directory, Group Policy, and related identity services.
• Support and maintain Microsoft SQL Server environments and database operations.
• Configure and manage virtualization technologies including VMware, HyperV, Citrix, and RDS.
• Deploy, monitor, and maintain application servers (IIS, Tomcat, and related web technologies).
• Implement and maintain information security best practices, monitoring, and documentation.
• Perform system scripting and automation using PowerShell, VBScript, or command-line tools.
• Troubleshoot and resolve system, network, and application issues.
• Maintain accurate technical documentation for systems, configurations, and processes.
• Participate in on‑call rotations and respond to system alerts as needed.

Skills

Windows Server administration

Active Directory

Group Policy

SQL Server management

PowerShell

VBScript

Troubleshooting

Communication

Multi-priority management

Education

Bachelor’s degree in Computer Science or related field

Tools

VMware

HyperV

Citrix

RDS

Job description

Integrated Systems Corp. in Mequon, Wisconsin is seeking a Systems Administrator to support our secure private cloud infrastructure and hosting environments.

You will install, configure, maintain, and monitor systems that support ISCorp’s hosted services and internal operations, ensuring reliability, performance, and security while delivering excellent service. The role emphasizes Windows Server and Active Directory administration, SQL Server management, virtualization (VMware, Hyper‑V, Citrix,