We are looking for a Systems Administrator to support and maintain core IT infrastructure in Deer Park, Illinois. This role focuses on ensuring reliable system performance, managing user access, and providing technical support across a Microsoft-based environment. The ideal candidate brings hands-on experience with server administration, desktop support, and virtualization technologies while working effectively in a fast-paced setting.<br><br>Responsibilities:<br>• Administer and maintain Active Directory services, including user accounts, group policies, and access controls.<br>• Support and troubleshoot Microsoft Windows Server environments to ensure stability, security, and performance.<br>• Provide technical assistance for Windows 10 endpoints, resolving hardware, software, and connectivity issues.<br>• Manage and support Dell hardware platforms, coordinating maintenance and addressing infrastructure-related concerns.<br>• Configure, monitor, and troubleshoot Citrix environments to maintain secure and efficient user access.<br>• Perform routine system updates, patching, and preventative maintenance across servers and workstations.<br>• Investigate system incidents and implement timely resolutions to minimize downtime and business disruption.<br>• Document system configurations, support procedures, and recurring issues to improve operational consistency.
<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 looking for a Senior Security Engineer for our client in the Milwaukee area. This role will help strengthen and support enterprise security operations across a mix of internal systems and client-facing environments. It focuses on security tooling, threat detection, incident response, infrastructure hardening, and continuous improvement initiatives. </p><p><br></p><p>The ideal candidate brings a strong systems and security background, enjoys solving complex technical problems, and can work independently while collaborating with infrastructure, operations, and compliance teams.</p><p><br></p><p>What You'll Be Doing</p><ul><li>Manage and improve core security technologies including SIEM, endpoint protection, vulnerability management platforms, identity and access controls, email security, and centralized logging solutions.</li><li>Investigate security events, suspicious activity, and high-priority alerts while coordinating containment, remediation, and recovery efforts.</li><li>Enhance threat detection capabilities through custom alerting, security analytics, correlation rules, and dashboard development.</li><li>Drive security hardening initiatives across Windows environments, Active Directory, servers, applications, and supporting infrastructure.</li><li>Lead vulnerability remediation efforts by identifying risks, prioritizing findings, validating fixes, and tracking trends.</li><li>Support endpoint security operations including malware investigations, ransomware response, identity-related threats, and advanced troubleshooting.</li><li>Administer and optimize Microsoft 365 security technologies such as Defender, Conditional Access, MFA, Exchange security controls, and identity governance features.</li><li>Partner with leadership and compliance stakeholders during audits, risk assessments, and remediation activities.</li><li>Develop and maintain operational documentation including security standards, technical procedures, and incident response playbooks.</li><li>Participate in security-related projects that improve visibility, resilience, automation, and operational efficiency.</li><li>Provide technical guidance to junior team members and assist with knowledge sharing across the organization.</li><li>Participate in escalation and after-hours support for critical security incidents as needed.</li></ul><p><br></p>