21 active directory administrator jobs at 16 companies in O'Fallon, IL
2mo
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System Administrator
Earth City, Missouri, United States
$60k-$85k/yr OnsiteFull Time
5+ YOE5+ years system administration experience; Windows Server and Linux administration; Active Directory, DNS, DHCP, Group Policy; virtualization (VMware/Hyper-V); scripting (PowerShell, Bash); bachelor’s degree or relevant certifications.
Windows Server, Linux, Active Directory, DNS, DHCP, Group Policy, VMware, Hyper-V, VLANs, TCP/IP, Firewalls, PowerShell, Bash, Appgate SDP, Microsoft 365, Azure AD Sync, ConnectWise Service Manager, SentinelOne, Rapid7, Cisco Umbrella, CyberArk
2mo
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System Administrator - Senior
Scott Air Force Base, Illinois, United States
OnsiteFull Time
8+ YOEActive Secret clearance,8+ years DoD/federal systems administration experience with Windows Server, Active Directory, SCCM, virtualization, storage/backup, STIG/vulnerability remediation, scripting (PowerShell), and strong troubleshooting.
Windows Server, Active Directory, Group Policy, DNS, DHCP, SMTP, SCCM, VDI, NAS, SAN, NTFS, CIFS, iSCSI, NFS, PowerShell, JavaScript, batch, VMware, DoD PKI
1mo
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Administrator, Server
Saint Louis, Missouri, United States
OnsiteFull Time
4+ YOE4+ years IT experience required; manage Active Directory, virtual and physical servers, VMware, Office 365; strong troubleshooting, change control, and disaster recovery skills.
Office 365, VMware, Windows, Linux, ITSM
2w
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Systems Administrator
St. Louis, Missouri, United States
HybridFull Time
4+ YOERequires 4–6 years supporting production server hardware/software, Active Directory, and network infrastructure; or a bachelor's degree or equivalent experience with 5+ years in a Microsoft server environment.
Microsoft Windows Server, Active Directory, RAID, Agile, Scrum, TCP/IP, DNS, DHCP, Cisco, SAN
2w
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Systems Administrator
St. Louis, Missouri, United States
$60k-$72k/yr OnsiteFull Time
2+ YOEBachelor's degree in computer science or related field, or 2–6 years of related experience. Requires operating systems, project management, Windows Server, Active Directory, Cisco UCS, and VMware experience.
Microsoft Active Directory, Cisco Unified Computing System (UCS), VMware Hypervisor, Windows Server, DNS, DHCP, SAN
4w
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Systems Administrator / Systems Infrastructure Lead
Scott Air Force Base, Illinois, United States
$115k-$130k/yr OnsiteFull Time
5+ YOE5+ years enterprise Windows/Linux systems administration, virtualization, SAN/NAS, Active Directory, backup/DR; DoDM 8140.03 qualification and Secret clearance required; Security+ or CySA+ preferred.
Windows Server 2019, Windows Server 2022, RHEL 8, RHEL 9, NetApp ONTAP, VMware vSphere, vCenter, Active Directory, Veeam, SCCM, SolarWinds, Commvault, SIPRNet
1mo
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Systems Administrator / Systems Infrastructure Lead
Scott Air Force Base, Illinois, United States
OnsiteFull Time
5+ YOE5+ years enterprise Windows/Linux/virtualization/SAN and Active Directory administration; DoD experience with STIGs; SECRET clearance; DoDM 8140.03 and related certifications (Security+, CySA+); backup/DR tooling experience.
Windows Server 2019, Windows Server 2022, RHEL 8, RHEL 9, NetApp ONTAP, VMware vSphere, vCenter, Active Directory, Veeam, SCCM, SolarWinds, Commvault, SIPRNet
1w
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IT Systems Administrator II
Creve Coeur, Missouri, United States
OnsiteFull Time
2+ YOETwo years of systems administration experience required, with Microsoft 365, Active Directory, Entra ID, virtualization, cloud-integrated systems, PowerShell automation, and infrastructure project experience. Associate's degree preferred.
Microsoft 365, Azure, Exchange Online, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Active Directory, Entra ID (Azure AD), Microsoft Copilot, PowerShell, Windows, Linux, Unix, Nutanix, HSA, FSA, CHUBB, 401K, Employee Stock Ownership Plan (ESOP)
1mo
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System Administrator II / System Administrator III – Hybrid – Chesterfield, MO (St. Louis)
Chesterfield, Missouri, United States
HybridFull Time
5+ YOE5+ years IT experience with 3+ years as a system administrator and 2+ years managing Windows Server; experience with Windows/Linux, virtualization (VMware), Active Directory/Azure AD, cloud (Microsoft Azure), scripting (PowerShell/Bash/Python), backup/DR, and enterprise security.
Windows Server, Linux, Active Directory, Azure Active Directory, Office 365, Group Policy, DNS, DHCP, VPN, VLAN, PowerShell, Bash, Python, VMware, vCenter, ESXi, Microsoft Azure, SAN, NAS, SIEM, SAML, LDAP, OIDC, SSO, Microsoft Copilot, GitHub Copilot
3w
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Service Desk Administrator
Johnston or Melbourne or Tempe or Austin or Aurora or Greenwood Village or Corona or St. Paul or St. Louis or Sioux Falls or McHenry or Houston or Cedar Rapids
$50k-$81k/yr OnsiteFull Time
1+ YOE1–5 years help desk/IT support experience; working knowledge of Windows 11, Microsoft 365, Citrix, SCCM, Active Directory; valid driver’s license and reliable transportation.
Windows 11, Microsoft 365, Outlook, Teams, OneDrive, Citrix, SCCM, Active Directory, Entra ID (Azure AD)
6h
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IT Infrastructure Administrator
United States or Missouri or Austin or Boston or Chattanooga or Chicago or Dallas or Denver or Houston or Jefferson City or Kansas City or Los Angeles or Madison or Milwaukee or Minneapolis or Nashville or Oakland or Omaha or Phoenix or Providence or Springfield or Saint Louis or Washington
$45k-$142k/yr RemoteFull Time
3+ YOEHigh school diploma or GED required; 2-year degree preferred. Requires 3+ years of relevant experience, Windows Server and Azure/AWS knowledge, PowerShell/Bicep/batch scripting, and Active Directory, DNS, DHCP, and networking familiarity.
Windows Server, Azure, AWS, PowerShell, Bicep, Active Directory, DNS, DHCP, Azure Virtual Desktop (AVD), Microsoft Exchange Online, Microsoft Teams, Teams Phones, Microsoft Intune, Microsoft OneDrive for Business, ITIL
2d
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Domain Services Engineer
Springfield or St. Louis or Washington
$126k-$170k/yr OnsiteFull Time
5+ YOERequires 5+ years of progressive Active Directory experience, scripting knowledge, AD or LDAP administration, directory synchronization, Cisco ISE, enterprise NAC, 802.1X, MAB, Web Authentication, and Tier 3 troubleshooting expertise.
Active Directory (AD), Cisco Identity Services Engine (ISE), DNS, DHCP, IPAM, PowerShell, Python, Bash, Perl, LDAP, Azure Active Directory Connect, Cisco Directory Synchronization, Group Policy Objects (GPO), Public Key Infrastructure (PKI), RADIUS, macOS, Linux, IoT, Cisco TrustSec, Comply-to-Connect (C2C), SIEM, Zero Trust Network Architecture (ZTNA)
2d
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Domain Services Engineer
Springfield or St. Louis
$126k-$170k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
5+ YOERequires 5+ years of Active Directory engineering experience, scripting knowledge, LDAP administration, directory synchronization, Cisco ISE, 802.1X, NAC, and Tier 3 authentication troubleshooting. U.S. citizenship and Top Secret/SCI clearance required.
Active Directory (AD), PowerShell, Python, Bash, Perl, LDAP, Azure Active Directory Connect, Cisco Directory Synchronization, Cisco Identity Services Engine (ISE), 802.1X, MAC Authentication Bypass (MAB), Web Authentication, RADIUS, Windows, macOS, Linux, IoT, Cisco TrustSec, Security Group Tags, Comply-to-Connect (C2C), Azure AD/Entra ID, Public Key Infrastructure (PKI), SIEM, Zero Trust Network Architecture (ZTNA), DNS, DHCP, IPAM, GPO
1mo
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Infrastructure Engineer
Maryland Heights, Missouri, United States
OnsiteFull Time
Hands-on server/infrastructure operations (Windows/Linux), monitoring, backup/restore, Active Directory administration (scoped), ITSM/ITIL practices, on-call availability, and working in regulated GxP environments.
Windows Server, Linux, VMware, Microsoft Hyper-V, Microsoft Azure, Veeam, Active Directory, Group Policy (GPO), CMDB
6d
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IT Support Specialist
St. Louis, Missouri, United States
$50k-$55k/yr OnsiteFull Time
2+ YOERequires 2+ years supporting Windows and Mac systems, Active Directory and Office 365/Exchange administration, troubleshooting, communication, and after-hours support. Associate degree or equivalent experience preferred.
Windows, Mac, Windows Active Directory, Microsoft 365, Microsoft Exchange, SCCM, WinPE, Office 365, PowerShell, Cisco IP Phones, Call Manager, Microsoft Teams, Zoom, Webex
1mo
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Systems Support Analyst
St. Louis, Missouri, United States
$47k-$64k/yr RemoteFull Time
Provide first-line IT support, account administration in Active Directory/Microsoft Admin Center/Vonage/Salesforce, endpoint and patch monitoring, and end-user training; bachelor\u0002s degree preferred.
Active Directory, Microsoft Admin Center, Vonage, Salesforce, WSUS, Microsoft Office, Microsoft Teams
2w
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IT Infrastructure Analyst
Nashville, Illinois, United States
OnsiteFull Time
3+ YOEBachelor's degree in IT, computer science, or related field; 3+ years of infrastructure administration; Windows Server, Active Directory, Group Policy, VMware, networking, backup, disaster recovery, security, troubleshooting, and documentation skills.
Windows Server, VMware, SAN, Microsoft Active Directory, Group Policy, TCP/IP, VLAN, VPN, DNS, DHCP, Microsoft Azure, AWS, Cisco, Meraki, Microsoft Office 365, NetApp, Dell EMC, IDS/IPS, PowerShell, SCCM, Microsoft Intune, 3CX
2mo
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Desktop Technician II
St. Louis, Missouri, United States
$47k-$59k/yr OnsiteFull Time
3+ YOELevel 2 desktop support for Windows and Apple devices, Active Directory and Group Policy administration, imaging and software deployment, ticketing (ServiceNow/ConnectWise), 3 years' related experience, valid driver’s license, rotating on-call.
Microsoft Windows 10/11, Apple devices, Microsoft Office 365, Active Directory, Group Policy, ServiceNow, ConnectWise (PSA), Computer-Aided Dispatch (CAD), VPN, MDM
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