<p>Robert Half is partnering with a well-established technology organization in the Milwaukee area to help them hire an experienced Systems Administrator. This role is responsible for maintaining server, virtualization, identity, database, and application-hosting technologies while helping ensure systems remain secure, reliable, and available for both internal teams and external customers.</p><p><br></p><p>This is a hands-on position for someone who enjoys troubleshooting, automation, infrastructure improvement, and working across a broad range of technologies.</p><p><br></p><p>What You'll Be Doing</p><ul><li>Administer and support Windows Server environments across production and non-production systems</li><li>Manage Active Directory, Group Policy, user access, and identity-related services</li><li>Support Microsoft SQL Server environments, including maintenance, backups, and recovery processes</li><li>Configure and maintain virtualization platforms such as VMware, Citrix, and Remote Desktop Services</li><li>Support web and application hosting technologies including IIS, Tomcat, and related services</li><li>Monitor system performance, availability, and security while proactively addressing issues</li><li>Develop and maintain automation and scripting solutions using PowerShell and other tools</li><li>Troubleshoot infrastructure, application, and network-related problems</li><li>Create and maintain technical documentation, procedures, and system configurations</li><li>Participate in an on-call rotation and assist with incident response when needed</li></ul><p><br></p>
<p>We are looking for an experienced Systems Engineer to join our team and provide high-level infrastructure support and strategic guidance for client environments. This position is ideal for an experienced, detail-oriented individual who enjoys working directly with clients, solving complex technical challenges, and shaping reliable, secure, and scalable technology solutions. You will partner with a collaborative engineering group while helping organizations strengthen and modernize their core systems. <strong><em>Local candidates to the Greater Milwaukee area with MSP experience is desired. </em></strong></p><p><br></p><p>Responsibilities:</p><p>• Serve as the primary technical resource for assigned client accounts, building trusted relationships and guiding infrastructure decisions.</p><p>• Plan, deploy, and support core technologies across server, network, firewall, backup, cloud, and security environments.</p><p>• Administer and enhance Microsoft 365 and Azure platforms, including identity, messaging, and cloud-based services.</p><p>• Lead infrastructure initiatives such as platform upgrades, environment migrations, virtualization work, and system improvements from planning through completion.</p><p>• Resolve advanced technical issues and provide escalation support to operational teams when complex incidents require senior engineering expertise.</p><p>• Conduct routine assessments of client systems to identify risks, improve performance, and recommend practical technology enhancements.</p><p>• Maintain stable and secure environments across on-premises and cloud systems while aligning solutions with client business goals.</p><p>• Continue developing technical knowledge through ongoing learning, certification efforts, and awareness of evolving industry standards.</p>
We are looking for a Cyber Security Engineer to strengthen and support the security of our technology environment in Brookfield, Wisconsin. In this role, you will help safeguard infrastructure, applications, networks, and data by building effective controls, assessing risk, and responding to security concerns. You will work closely with cross-functional technical teams to improve resilience, reduce exposure, and promote practical security standards across daily operations.<br><br>Responsibilities:<br>• Build, configure, and sustain security measures across cloud platforms, network infrastructure, servers, and endpoint devices.<br>• Review security monitoring data, analyze suspicious activity, and investigate alerts generated through enterprise security tools such as Microsoft Sentinel, Splunk, or QRadar.<br>• Perform vulnerability reviews, prioritize findings based on risk, and partner with technical teams to drive timely remediation.<br>• Contribute to identity and access management efforts by supporting multi-factor authentication, privileged access controls, and role-based permissions.<br>• Take part in incident response activities by assisting with investigation, containment, recovery, and follow-up documentation.<br>• Support audit readiness, compliance activities, and the creation or refinement of security policies and standards.<br>• Partner with infrastructure, cloud, and application teams to embed sound security practices into projects, system changes, and operational processes.<br>• Assess emerging security technologies and provide recommendations that improve the organization’s overall defensive capabilities.<br>• Create and maintain security procedures, playbooks, and technical documentation to support consistent operations and response efforts.<br>• Advise internal teams on security awareness, risk reduction, and practical approaches to protecting systems and information.
<p>Robert Half is seeking a Senior Systems Administrator to support and maintain a complex mix of Linux, Windows, virtualization, cloud, and application environments. This role is ideal for someone who enjoys working across a broad technology stack, solving challenging infrastructure issues, and partnering directly with both internal stakeholders and external customers.</p><p><br></p><p>You'll play a key role in system administration, automation, application support, security, performance optimization, and infrastructure projects while helping ensure highly available and secure business-critical environments.</p><p><br></p><p>What You'll Do</p><ul><li>Administer and support Linux and Windows server environments, including installation, configuration, patching, upgrades, troubleshooting, and performance tuning.</li><li>Manage core infrastructure services such as Active Directory, Group Policy, IIS, DNS, and related technologies.</li><li>Support business applications and the underlying infrastructure required to keep them running efficiently.</li><li>Maintain and troubleshoot virtualized environments, including VMware and similar platforms.</li><li>Assist with cloud-based infrastructure across Azure, AWS, and other public cloud environments.</li><li>Develop and maintain automation using tools such as PowerShell, Bash, Python, Ansible, or Terraform.</li><li>Monitor system health, performance, and capacity while proactively identifying opportunities for improvement.</li><li>Partner with security teams to implement system hardening, vulnerability remediation, access controls, and patch management best practices.</li><li>Support backup, recovery, and disaster recovery processes for critical systems and applications.</li><li>Troubleshoot networking and application connectivity issues involving DNS, DHCP, VPNs, firewalls, and TCP/IP.</li><li>Participate in infrastructure upgrades, migrations, onboarding efforts, and technology modernization initiatives.</li><li>Create and maintain technical documentation, procedures, and operational runbooks.</li><li>Serve as a senior technical resource during incidents, projects, and customer-facing engagements.</li><li>Participate in an on-call rotation supporting production systems as needed.</li></ul><p><br></p>