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4 results for Systems Administrator in Janesville, WI

Senior Systems Administrator

Janesville, WI
onsite
Permanent / Full Time
90000 - 130000 USD / Yearly
Robert Half is partnering with our client in the Janesville area to hire an experienced Senior Systems Administrator to support and enhance a complex enterprise IT infrastructure. This is a hands-on senior-level role responsible for maintaining highly available server, cloud, storage, and network environments while serving as the primary escalation point for complex infrastructure issues. The ideal candidate brings deep Microsoft infrastructure expertise, strong networking experience, and a proactive approach to system reliability, security, and continuous improvement. Responsibilities<ul><li>Administer, maintain, and optimize enterprise Windows Server environments, ensuring high availability, performance, and security.</li><li>Manage Hyper-V virtualization infrastructure and support server lifecycle activities including deployments, upgrades, patching, and performance tuning.</li><li>Administer Microsoft 365 services including Exchange Online, Teams, SharePoint, and related cloud technologies.</li><li>Manage Azure infrastructure, subscriptions, identity services, and cloud resources.</li><li>Maintain Active Directory, Group Policy, DNS, DHCP, and identity management services.</li><li>Support enterprise storage infrastructure, including SAN environments and backup technologies.</li><li>Configure, manage, and troubleshoot enterprise networking components including firewalls, switches, wireless networks, VPNs, and WAN connectivity.</li><li>Administer Cisco Firepower and SonicWall firewalls, including security policies, VPN configuration, NAT, content filtering, and threat prevention.</li><li>Manage Aruba switching infrastructure, VLANs, routing, network segmentation, and wireless environments utilizing Aruba and Ubiquiti technologies.</li><li>Monitor infrastructure health, identify trends, and proactively resolve issues before they impact business operations.</li><li>Lead troubleshooting efforts for complex infrastructure incidents and perform root cause analysis.</li><li>Participate in infrastructure projects including migrations, upgrades, cloud initiatives, and technology implementations.</li><li>Develop and maintain technical documentation, network diagrams, operational procedures, and configuration standards.</li><li>Partner with security teams to implement infrastructure security best practices and remediation efforts.</li><li>Identify opportunities to automate administrative tasks using PowerShell and other automation tools.</li><li>Mentor junior team members and provide technical leadership on infrastructure initiatives.</li></ul>
2026-07-14T00:00:00Z

Database Administrator (SQL)

Madison, WI
onsite
Permanent / Full Time
120000 - 150000 USD / Yearly
Robert Half is seeking an experienced Database Administrator to manage and support enterprise database environments with a primary focus on Microsoft SQL Server. This role is responsible for ensuring database availability, performance, security, and reliability for critical business applications. The position requires a high level of independence, strong troubleshooting ability, and collaboration with development and infrastructure teams. This is a direct hire role with our partner in Madison, WI. Key Responsibilities<ul><li>Administer, monitor, and maintain Microsoft SQL Server environments to ensure performance, reliability, and availability</li><li>Provide secondary support for Oracle database environments</li><li>Perform routine database maintenance including backups, restores, patching, upgrades, and health checks</li><li>Diagnose and resolve database performance issues, availability problems, and data integrity concerns</li><li>Design and maintain disaster recovery and business continuity solutions, including regular testing</li><li>Implement and maintain database security and access controls</li><li>Partner with application developers and infrastructure teams to support database-dependent systems</li><li>Support database platform upgrades, modernization efforts, and lifecycle management</li><li>Contribute to operational reporting related to backups, availability, and system health</li><li>Participate in on-call support for production database systems</li><li>Document database standards, procedures, and configurations</li></ul>
2026-07-20T00:00:00Z

Payroll Administrator

Waukesha, WI
onsite
Temporary / Contract
0 - 0 USD / Yearly
We are looking for an experienced Payroll Administrator to support payroll and human resources operations for a team in Wisconsin. This long-term contract opportunity is ideal for someone who can confidently manage payroll processing, employee administration, benefits coordination, and compliance-related activities in a fast-paced environment. The position follows a preferred Monday through Thursday schedule of approximately 30 hours per week and requires someone who can work across both payroll and HR functions. Responsibilities: • Administer bi-weekly payroll accurately and on schedule, including reviewing time entries, confirming hours worked, and finalizing payroll data. • Investigate and resolve payroll issues by addressing employee questions, correcting discrepancies, and maintaining precise payroll documentation. • Manage payroll-related adjustments such as deductions, reimbursements, and other earnings components while adhering to applicable regulations. • Support new employee onboarding by preparing records, coordinating required documentation, and helping arrange equipment and initial setup needs. • Oversee benefits enrollment and ongoing benefits administration, ensuring employee information remains current and properly documented. • Maintain organized employee files, track performance review records, and support HR documentation and compliance activities. • Assist with recruiting coordination by helping post openings, organizing hiring-related information, and supporting administrative steps in the hiring process. • Contribute to workplace compliance and safety efforts by helping coordinate training initiatives and supporting HR planning for staffing and compensation reviews.
2026-08-10T00:00:00Z

IT Infrastructure Supervisor

Madison, WI
onsite
Permanent / Full Time
120000 - 150000 USD / Yearly
Robert Half is seeking an IT Infrastructure Supervisor on behalf of our client in Madison, WI. This is a hands-on leadership role responsible for overseeing a team of infrastructure professionals while contributing to the design, support, and improvement of the organization's technology environment. The ideal candidate brings a combination of technical expertise, leadership experience, and a passion for developing team members while driving operational excellence. What You'll Do<ul><li>Lead, mentor, and develop a team responsible for infrastructure and operational support.</li><li>Manage team priorities, project assignments, and day-to-day workload.</li><li>Serve as an escalation point for complex technical issues and critical incidents.</li><li>Support and improve server, network, cloud, and infrastructure environments.</li><li>Drive automation, system reliability, and operational efficiency initiatives.</li><li>Oversee monitoring, incident response, disaster recovery, and business continuity efforts.</li><li>Participate in infrastructure projects, upgrades, and technology improvements.</li><li>Help establish standards, processes, and best practices across the IT environment.</li><li>Collaborate with leadership and technical teams to support organizational goals.</li><li>Participate in hiring, onboarding, performance management, and career development activities.</li></ul>
2026-07-29T00:00:00Z