Information Technology System Administrator

LHH; Romeo (MI); On-site; USD 70,000 - 95,000; Full time

Job summary

LHH is seeking an IT Systems Administrator to protect and optimize the organization’s core IT infrastructure across a global manufacturing environment. You will manage Windows Server, Active Directory, VMware virtualization, and enterprise security platforms, ensuring high availability and performance.

You’ll collaborate with governance, risk, and compliance teams, contribute to incident response, vulnerability management, and security hardening, and drive automation with PowerShell while

Qualifications

• 3–5 years in Systems Administration or IT infrastructure support.
• Experience with enterprise Windows Server, AD, DNS, DHCP, and policy management.
• Experience with VMware virtualization and Microsoft 365 environments.
• Strong troubleshooting, communication, and documentation skills.
• Ability to work independently and in a team across global operations.

Responsibilities

• Administer and support Windows Server infrastructure, AD, DNS, DHCP, and policy management.
• Manage VMware virtualization, VM provisioning, maintenance, and optimization.
• Install, configure, upgrade, patch, and lifecycle manage servers.
• Monitor performance, availability, capacity, and security of critical systems.
• Support enterprise storage, backup, DR, and business continuity.
• Configure and troubleshoot LAN/WAN, VPN, switching, and routing.
• Engage in cybersecurity operations, vulnerability management, incident response coordination.
• Develop PowerShell scripts to automate tasks and maintain documentation.
• Participate in on-call rotation and scheduled maintenance windows.

Skills

Troubleshooting

Customer service

Documentation

Collaboration

Analytical thinking

Tools

PowerShell

VMware

Windows Server

Active Directory

Microsoft Entra ID

Microsoft 365

DNS/DHCP/Group Policy

Job description

What you’ll do:

The IT Systems Administrator is responsible for the administration, maintenance, and continuous improvement of the organization's core IT infrastructure, including servers, virtualization, networking, endpoint technologies, identity services, and enterprise security platforms. This role ensures the availability, performance, and security of critical business systems while supporting users across a global manufacturing environment.

Working closely with the Global Manager – Governance, Risk & Compliance, the IT Systems Administrator will also support cybersecurity operations through vulnerability management, endpoint security, incident response coordination, identity and access management, and the implementation of security best practices across the enterprise.

The successful candidate will demonstrate strong technical aptitude, sound judgment, and a commitment to continuous learning while contributing to the organization's evolving infrastructure and cybersecurity initiatives.

Duties / Responsibilities of this position:

Infrastructure Administration

• Administer, maintain, and support enterprise Windows Server infrastructure, Active Directory, DNS, DHCP, Group Policy, and Microsoft Entra ID.
• Manage VMware virtualization environments, including virtual machine provisioning, maintenance, and performance optimization.
• Perform server installation, configuration, upgrades, patching, and lifecycle management.
• Monitor system performance, availability, and capacity to ensure reliable operation of business-critical systems.
• Administer and support enterprise storage, backup, disaster recovery, and business continuity solutions.

Network Administration

• Administer and troubleshoot enterprise LAN, WAN, wireless, VPN, and remote connectivity solutions.
• Configure and support network infrastructure including switches, firewalls, routing, and network segmentation.
• Monitor network performance and assist in maintaining secure and highly available network services.
• Support site deployments, infrastructure upgrades, and network modernization projects.

Cybersecurity Operations

• Assist with the administration and support of enterprise cybersecurity technologies.
• Coordinate with the organization's Managed Detection and Response (MDR) provider to investigate and remediate security incidents.
• Support vulnerability management by reviewing findings, coordinating remediation efforts, and validating corrective actions.
• Assist with endpoint protection, identity security, and implementation of cybersecurity best practices.
• Participate in security incident response, root cause analysis, and post-incident reviews.
• Participate in security hardening efforts in accordance with organizational standards and industry best practices.

Systems Monitoring & Maintenance

• Monitor enterprise infrastructure for availability, performance, and security.
• Perform routine maintenance, software updates, firmware upgrades, and system health checks.
• Troubleshoot infrastructure issues and restore services in accordance with established service levels.
• Maintain infrastructure documentation, standard operating procedures, and system inventories.
• Develop and maintain PowerShell scripts and automation to improve operational efficiency.
• Participate in a scheduled on-call rotation to provide after-hours support for critical infrastructure, network, and cybersecurity incidents.
• Participate in planned maintenance windows, infrastructure upgrades, and disaster recovery exercises outside of normal business hours as required.

Technologies

Job Requirements:

• 3–5 years of experience in Systems Administration, Network Administration, or IT Infrastructure support.
• Experience administering enterprise infrastructure, networking, and virtualization technologies..
• Experience working within Microsoft Active Directory and Microsoft 365 environments.
• Strong troubleshooting and analytical skills with the ability to diagnose and resolve complex technical issues.
• Excellent customer service, communication, and documentation skills.
• Ability to manage multiple priorities while working independently and collaboratively within a team environment.

Equal Opportunity Employer/Veterans/Disabled

To read our Candidate Privacy Information Statement, which explains how we will use your information, please navigate to https://www.lhh.com/us/en/candidate-privacy

The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable:

• The California Fair Chance Act
• Los Angeles City Fair Chance Ordinance
• Los Angeles County Fair Chance Ordinance for Employers