System Administrator

Williams International•Pontiac, MI

30d•Onsite

About The Position

This position is responsible for the administration, maintenance, and support of enterprise server infrastructure, operating systems, virtualization platforms, cloud services, identity and access management, storage, backup and recovery systems, and related technologies. The System Administrator will provide hands-on support for Windows Server, Active Directory, Group Policy, Microsoft 365 and Azure, VMware or Hyper-V, enterprise storage, monitoring, backup and recovery, and security technologies. Key responsibilities include system patching and upgrades, configuration management, vulnerability remediation, performance monitoring and optimization, troubleshooting, and maintaining accurate infrastructure documentation. In addition, the candidate will possess strong technical, analytical, and problem-solving skills, along with demonstrated experience supporting secure, reliable, and highly available enterprise environments. This role will collaborate closely with Network, Cybersecurity, Application, Service Desk, and other IT teams to resolve complex technical issues, implement infrastructure enhancements, improve system reliability and performance, and ensure systems are maintained in accordance with organizational security standards, operational requirements, and industry best practices. This position is 100% on-site.

Requirements

3–5+ years of hands-on experience in systems administration or a related IT infrastructure role
Experience supporting production environments, business-critical applications, and enterprise infrastructure
Strong experience administering Windows Server, including Active Directory, Group Policy, DNS, DHCP, and file/print services
Experience with Microsoft 365 and Azure, including Entra ID, user administration, identity management, and access controls
Experience managing virtualization platforms such as VMware vSphere/ESXi or Microsoft Hyper-V
Experience with server hardware, storage, SAN/NAS, and enterprise backup technologies
Understanding of networking fundamentals, including TCP/IP, VLANs, routing, DNS, DHCP, VPNs, and firewalls
Experience with system monitoring and management platforms such as SolarWinds, PRTG, or similar tools
Experience performing OS patching, firmware upgrades, vulnerability remediation, configuration management, and system hardening
Knowledge of backup, disaster recovery, business continuity, and high-availability concepts
Experience with endpoint/server security, antivirus/EDR, certificate management, and security best practices
Strong troubleshooting and root-cause analysis skills
Strong documentation skills, including maintaining system configurations, procedures, diagrams, and operational documentation
Ability to work independently while collaborating effectively with network, security, application, and support teams
U.S. citizenship is required
Position requires the ability to obtain a U.S. Government Security Clearance, if needed.

Nice To Haves

Bachelor’s degree in Information Technology, Computer Science, Information Systems, or a related field preferred

Responsibilities

Install, configure, maintain, and troubleshoot Windows servers and applications
Administer Active Directory, Group Policy, DNS, and DHCP
Support Microsoft Entra ID/Azure AD and hybrid identity environments
Administer virtualization environments such as VMware vSphere/ESXi
Administer Microsoft 365, Azure, Exchange Online, SharePoint, and related services, depending on organizational responsibilities
Work with cybersecurity teams to remediate identified vulnerabilities and security risks
Manage enterprise backup and recovery systems
Monitor servers and infrastructure using tools such as SolarWinds, PRTG, VMware monitoring tools, or similar platforms
Manage enterprise file servers, shares, and permissions