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43 server administrator jobs at 25 companies in O'Fallon, MO

1w
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Administrator, Server
Saint Louis, Missouri, United States
OnsiteFull Time
Spire
SpireNYSE: SR: Provides natural gas utility services to homes and businesses.
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
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1mo
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System Administrator
Earth City, Missouri, United States
$60k-$85k/yr OnsiteFull Time
Credit Control
Credit Control: Provides debt recovery and accounts receivable management services.
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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1mo
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System Administrator - Senior
Scott Air Force Base, Illinois, United States
OnsiteFull Time
DecisionPoint
DecisionPoint: Provides IT and cybersecurity services for federal government agencies.
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
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1mo
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System Administrator
St Louis, Missouri, United States
OnsiteFull Time
Chenega Corporation
Chenega Corporation: Provides professional government, defense, and facility support services.
3+ YOERequires LenelS2 and Milestone certifications, Security+ certification, and 3+ years as a systems administrator/engineer on security system platforms; strong background with security software, servers, databases, and enterprise installation/troubleshooting.
LenelS2, Milestone, Genetec, Honeywell, Avigilon, Bosch, MSWord, Microsoft Excel, Microsoft Access, Microsoft PowerPoint, Microsoft Outlook
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3w
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IT Systems Administrator
Warrenton, Missouri, United States
OnsiteFull Time
Warrenton Oil Group
Warrenton Oil Group: Operates a network of fuel stations and convenience stores.
Support and maintain servers, Microsoft 365, Active Directory/Entra ID, networking, workstations, backups, and provide technical support across multiple locations.
Microsoft 365, Windows Server, Active Directory/Entra ID, Group Policy, POS
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3w
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IT Systems Administrator
Warrenton, Missouri, United States
OnsiteFull Time
Warrenton Oil Company
Warrenton Oil Company: Operates convenience stores, fuel stations, and hotels in Missouri.
Support and maintain Windows Server, Microsoft 365, Active Directory/Entra ID, Group Policy, networks, workstations and business applications; strong troubleshooting and documentation skills; participate in on-call rotation.
Microsoft 365, Windows Server, Active Directory/Entra ID, Group Policy, POS
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4w
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System Administrator II / System Administrator III – Hybrid – Chesterfield, MO (St. Louis)
Chesterfield, Missouri, United States
HybridFull Time
Experitec
Experitec: Provides industrial automation products and process control engineering services.
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
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3w
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Infrastructure Systems Administrator
Springfield or St. Louis
$139k-$170k/yr OnsiteFull Time
Accenture Federal Services
Accenture Federal ServicesNYSE: ACN: Provides technology and consulting services to U.S. federal agencies.
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)
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2w
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Systems Administrator – AWS GovCloud (DoD Classified Environments)
Belleville, Illinois, United States
OnsiteFull Time
NV5
NV5NASDAQ: NVEE: Technical engineering and consulting for infrastructure and energy projects.
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
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2w
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Enterprise Data Administrator
OFallon, Missouri, United States
RemoteFull Time
Gateway Fiber
Gateway Fiber: Provides high-speed, reliable fiber-optic internet services to communities.
5+ YOE5+ years experience in data engineering/database administration; hands-on Microsoft Fabric, Power BI, SQL Server, ETL/ELT pipelines, data governance, and stakeholder communication.
Microsoft Fabric, One Lake, Data Factory, Power BI, SQL Server, T-SQL, Python, PowerShell, ArcGIS Enterprise, Esri, Azure
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1w
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Mid-Level Systems Administrator
Berkeley or Hazelwood
$96k-$130k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
3+ YOE3+ years administering Active Directory, VMware, and Windows Server; experience with system integration, security compliance (JSIG/RMF), user access administration, and classified/closed networks; active U.S. Secret clearance required.
Active Directory (AD), VMware, Microsoft Windows Server, Microsoft Windows 11, NetApp, McAfee Epo, Splunk, Amazon Web Services (AWS), Azure, Red Hat Enterprise Linux (RHEL), Oracle, Scaled Agile Framework
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1mo
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Database Administrator
St. Peters, Missouri, United States
OnsiteFull Time
CarShield
CarShield: Provides vehicle service contracts for automotive repair protection.
5+ YOE5+ years SQL Server DBA experience, Always On and backup/DR expertise, performance tuning and security experience, Bachelor's in CS/MIS or equivalent, able to work on-site in St. Peters, MO 5 days/week.
Microsoft SQL Server, Always On Availability Groups, SQL Agent, Change Data Capture (CDC), Extended Events, Query Store, Microsoft Azure SQL, DMVs, T/SQL
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1mo
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Systems Administrator - Contract
St. Louis, Missouri, United States
$35-$50/hr OnsiteFull Time, Contract
World Wide Technology
World Wide Technology: Global technology solutions provider and systems integrator.
Design, coordinate and implement IT infrastructure and unified communications, provide network and server support, travel 15–50% (domestic/international), valid driver's license, lift 50 lbs, participate in on-call rotation.
Windows, Mac
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2mo
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Windows Systems Administrator (Associate or Mid-Level)
Berkeley, Missouri, United States
$78k-$130k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
1+ YOE1+ years Windows Server and Windows desktop OS experience; VMware; basic network skills; security and program IT infrastructure familiarity.
VMware, Windows Server, Windows OS, McAfee, Splunk, HBSS
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3w
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Systems Administrator (TS/SCI Clearance Required with agreement to obtain CI Poly)
Alexandria or Chantilly or Englewood or Gaithersburg or Tucson or Saint Louis
OnsiteFull Time
North Point Technology
North Point Technology: Technology services and engineering for federal government missions.
Active TS/SCI clearance with agreement to obtain CI Poly, Linux/Windows administration, virtualization (VMware/KVM), automation (Ansible, PowerShell, Bash, Python), cloud (AWS GovCloud/Azure Government), STIG/RMF compliance, DoD 8570 IAT II/III, bachelor's degree preferred.
Red Hat Enterprise Linux, CentOS, Windows Server, VMware, KVM, Ansible, Bash, PowerShell, Python, AWS GovCloud, Azure Government, ACAS, Git, Jenkins, Docker, DNS, DHCP, Active Directory, PKI
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1mo
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Salesforce & Marketing Cloud Systems Administrator
Fenton, Missouri, United States
HybridFull Time
Joyce Meyer Ministries
Joyce Meyer Ministries: Shares Christian teachings and provides global humanitarian relief services.
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
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5h
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Cloud Engineer
St. Louis, Missouri, United States
HybridFull Time
Karpel Solutions
Karpel Solutions: Provides case management software and managed IT services.
4+ YOE4+ years IT experience with at least 2 years as a system/cloud engineer, Azure and Windows Server expertise, PowerShell, Microsoft 365 administration, strong troubleshooting and communication skills.
Azure, Microsoft 365, PowerShell, Windows Server, IIS, SQL Server, Azure Front Door, Key Vault, AI Foundry, blob storage, app services, Azure Well-Architected Framework
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1mo
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Infrastructure Engineer
Maryland Heights, Missouri, United States
OnsiteFull Time
Curium
Curium: Manufacturer and distributor of diagnostic and therapeutic radiopharmaceuticals.
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
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1mo
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Infrastructure Engineer
St. Louis, Missouri, United States
OnsiteFull Time
Lutheran Church Extension Fund
Lutheran Church Extension Fund: Provides financial solutions and investment services for church ministries.
5+ YOEBachelor's in CS/IT or equivalent, 5+ years infrastructure/systems administration experience; expertise with Windows Server, Active Directory, virtualization, cloud, backups/DR, scripting, networking (DNS/DHCP/TCP/IP), and security controls.
Windows Server, Active Directory, DNS, DHCP, TCP/IP
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1d
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Information Technology Internship
Alton, Illinois, United States
OnsiteInternship
City of Alton
City of Alton: Municipal government providing public services to Alton, Illinois.
Gain hands-on IT experience in networking, email administration, servers, and computer troubleshooting; provide up to 3 references; internship is unpaid.
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