146 systems administrator jobs at 83 companies in Marlborough, MO
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Systems Administrator
Chesterfield, Missouri, United States
HybridFull Time
7+ YOEMinimum 7 years of progressive systems administration or infrastructure engineering experience, enterprise environment experience, and expertise across servers, cloud, virtualization, storage, identity, security, and automation.
Microsoft Windows Server, Active Directory, Group Policy, DNS, DHCP, VMware vSphere, Microsoft 365, Microsoft Exchange Online, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Microsoft Entra ID, Pure Storage, Microsoft Azure, PowerShell
4d
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Systems Administrator
St. Louis, Missouri, United States
$130k-$140k/yr OnsiteFull Time
5+ YOEActive TS/SCI clearance, bachelor's degree or equivalent, and 5–10 years of systems administration experience. Requires Microsoft Office, troubleshooting, documentation, teamwork, and customer service skills.
Microsoft Office Suite, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Tanium, Numecent, XenApp, SCCM/MECM, ThinPro, Citrix, Windows 11, Azure Virtual Desktop, ESX/vSphere4, XenDesktop, Python, PowerShell
1mo
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Systems Administrator
St. Louis, Missouri, United States
$98k-$132k/yr OnsiteFull Time
5+ YOETS/SCI clearance required,5+ years IT systems administration experience,skills in backups,software updates,troubleshooting,VDI,Windows,Citrix,SCCM,SMS;strong written/verbal communication.
Virtual Desktop Infrastructure (VDI), Windows 11, Windows 10, Citrix, SMS, SCCM, KVM, VOIP
4d
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Systems Administrator SaaS
St. Louis, Missouri, United States
$110k-$136k/yr OnsiteFull Time
5+ YOERequires active TS/SCI clearance, U.S. citizenship, 5–10 years of systems administration experience, and a bachelor's degree or equivalent. Experience with enterprise systems, hardware, scripting, and software deployment required.
Microsoft Office Suite, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Tanium, Numecent, XenApp, SCCM/MECM, Azure Virtual Desktop, ThinPro, Citrix, ESXi/vSphere, XenDesktop, Python, PowerShell, Windows 11, Service+
1w
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Systems Administrator
St. Louis, Missouri, United States
HybridFull Time
2+ YOE2+ years of progressive IT experience preferred, with Microsoft 365, Windows, IT policy management, endpoint administration, troubleshooting, user lifecycle management, and security compliance knowledge.
Microsoft 365, Exchange Online, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Microsoft Entra ID, Microsoft Intune, Remote Monitoring and Management (RMM), Windows
6d
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Systems Administrator (SaaS)
Springfield or St. Louis
$126k-$170k/yr OnsiteFull Time
Requires 5+ years of systems administration experience, U.S. citizenship, Top Secret/SCI clearance, and a bachelor's degree or equivalent. Experience with deployments, VDI, Windows, scripting, troubleshooting, and documentation required.
Microsoft Office Suite, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Tanium, Numecent, XenApp, SCCM/MECM, Service+, AVD, ThinPro, Citrix, Windows 11, Azure Virtual Desktop, ESX/vSphere4, XenDesktop, Python, PowerShell
3w
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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
3w
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Sr. Systems Administrator
St. Louis, Missouri, United States
OnsiteFull Time
8+ YOEBachelor's degree with 8+ years or master's degree with 6+ years, including 8+ years of enterprise systems administration. Requires Windows/Linux, virtualization, scripting, cybersecurity, Security+ CE, and active TS/SCI clearance.
Microsoft Windows Server, VMware vSphere, DNS/DHCP, Group Policy, PowerShell, Bash, Python, VMware vCenter, Git, ServiceNow, Microsoft Word, Microsoft Excel, Microsoft Office, Red Hat Enterprise Linux (RHEL), Active Directory, Ansible, SCCM/MECM, Splunk, Elastic Stack, AWS
1mo
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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
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
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)
1w
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Business Systems Administrator
Bloomington or St. Louis
OnsiteFull Time
Requires an associate degree or equivalent experience, 2+ years supporting business applications, CRM/ERP administration skills, strong troubleshooting, and cross-functional communication. Salesforce Administrator Certification preferred.
Salesforce, AccountingSeed, ConnectWise Manage, Microsoft Office, EOS (Entrepreneurial Operating System)
1mo
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Systems Administrator – AWS GovCloud (DoD Classified Environments)
Belleville, Illinois, United States
OnsiteFull Time
3+ YOEActive DoD Secret clearance, IAT Level II/III,3+ years systems administration with AWS GovCloud, Windows Server, RMF/DISA STIGs/NIST 800-53 knowledge, scripting/IaC (Bash,Python,PowerShell,Terraform,CloudFormation).
AWS GovCloud (US), EC2, S3, RDS, IAM, CloudTrail, CloudWatch, VPC, KMS, SCAP, ACAS, Splunk, ELK stack, Windows Server, Bash, Python, PowerShell, Terraform, CloudFormation, AWS Organizations, Service Control Policies (SCPs), ECS, EKS, CI/CD, RMF, DISA STIGs, NIST SP 800-53, SIEM
1mo
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AWS ECDS Systems Administrator
St. Louis, Missouri, United States
OnsiteFull Time
4+ YOETS/SCI with CI poly, Bachelor's in technical field, 4+ years relevant experience, DoD 8140.01/8570 IAT Level II, AWS infrastructure and Linux experience, scripting with Python/Bash, EM security practices.
AWS, EC2, EBS, VPC, IAM, AWS CLI, CloudFormation, Python, Bash
5d
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Systems Administrator – Azure and Microsoft 365
St. Louis, Missouri, United States
$75k-$95k/yr OnsiteFull Time
3+ YOERequires 3–5+ years of Azure and Microsoft 365 administration, Entra ID, Intune, security, compliance, troubleshooting, PowerShell, and automation experience. Bachelor's degree preferred; certifications are a plus.
Microsoft Azure, Microsoft 365, SharePoint, OneDrive, Teams, Microsoft Entra ID, Microsoft Intune, Exchange Online, PowerShell, Microsoft Copilot, ChatGPT Enterprise, Microsoft Fabric, Power BI, Microsoft Purview, Azure DevOps, Azure Automation, Azure Functions, Kubernetes, Anthropic Claude
1mo
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Infrastructure Systems Administrator
Springfield or St. Louis
$139k-$170k/yr OnsiteFull Time
Administer RHEL/Windows servers, manage AWS infrastructure for a self-hosted ServiceNow platform, support ServiceNow AI integrations, and hold an active TS/SCI clearance.
RHEL 9, Windows Server, AWS, EC2, RDS, Application Load Balancer (ALB), Security Groups, AWS Bedrock, ServiceNow, Now Assist, AI Search, Predictive Intelligence, AI Control Tower, Model Context Protocol (MCP)
2mo
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Linux Systems Administrator - HPC (TS/SCI Clearance Required)
Alexandria or Chantilly or Springfield or Saint Louis
OnsiteFull Time
Active TS/SCI clearance, strong Linux/RHEL administration, HPC cluster (Slurm/MPI) experience, STIG/IAVA remediation, VM backup experience, scripting for automation, and DoD 8570-compliant certification (e.g., Security+).
Linux, RHEL, Slurm, MPI, STIG, IAVA, Jira, Confluence
2mo
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Salesforce & Marketing Cloud Systems Administrator
Fenton, Missouri, United States
HybridFull Time
0+ YOE0-2 years relevant experience, Bachelor's degree or equivalent, experience with SQL Server, Salesforce and Marketing Cloud preferred; data management, query writing, documentation, and strong interpersonal and problem-solving skills.
Salesforce, Marketing Cloud, SQL Server, Agent360, Data360, Flow
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
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