104 systems administrator jobs at 66 companies in Wright City, MO
2d
Save
Mark Applied
Hide
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
3w
Save
Mark Applied
Hide
Systems Administrator
St. Louis, Missouri, United States
$98k-$132k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
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
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
Systems Administrator
St. Louis, Missouri, United States
$98k-$132k/yr OnsiteFull Time
5+ YOETS/SCI clearance required, 5+ years IT systems/admin experience, BA/BS or equivalent, expertise in desktop support, VDI, Windows/Citrix/SCCM/SMS, backups, troubleshooting, and strong communication.
Virtual Desktop Infrastructure (VDI), Microsoft Windows 11, Microsoft Windows 10, Microsoft Windows 7, Citrix, SMS, SCCM, KVM, VOIP
5d
Save
Mark Applied
Hide
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
1w
Save
Mark Applied
Hide
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
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
Systems Administrator - Contract
St. Louis, Missouri, United States
$35-$50/hr OnsiteFull Time, Contract
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
2mo
Save
Mark Applied
Hide
Help Desk / Systems Administrator / Service Desk Engineer
St. Louis, Missouri, United States
OnsiteFull Time
3+ YOE3-5 years in a tiered service or help desk; degree in IT or related field; Windows networking and system administration knowledge; strong communication; eager to learn and provide white-glove support.
Autotask, Datto, Atera, PowerShell, Windows, DNS, VPN, Microsoft 365, O365
2w
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
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)
4w
Save
Mark Applied
Hide
Camera Systems Administrator
Clayton, Missouri, United States
$53k-$64k/yr OnsiteFull Time
3+ YOEThree years of related experience (including one year as a Corrections Officer), equivalent to 30 college credit hours in behavioral sciences/criminology/corrections, valid driver's license, CPR and First Aid, ability to perform extensive physical tasks, mandatory overtime and shift flexibility.
2mo
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
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
1d
Save
Mark Applied
Hide
Sr. Systems Engineer – SQL Database Administrator.
Saint Paul or Atlanta or Hopkins or Charlotte or Chicago or Gresham or Denver or Brookfield or Earth City
$105k-$124k/yr HybridFull Time
10+ YOEBachelor's degree or equivalent experience; 5+ years in IT and 10+ years designing, developing, and supporting technology infrastructure. Requires advanced SQL Server, cloud, HA/DR, security, T-SQL, PowerShell, and leadership expertise.
Microsoft SQL Server, Microsoft Azure, Amazon Web Services (AWS), Always On Availability Groups, Failover Clustering, Replication, Log Shipping, T-SQL, PowerShell
2w
Save
Mark Applied
Hide
OFFICE PERSONNEL ADMINISTRATOR (FULL TIME)
Saint Louis, Missouri, United States
$19-$25/hr OnsiteFull Time
Previous project management, event planning, and system administration experience; clerical skills including telephone handling, bookkeeping, typing, filing, scheduling, and basic office equipment use.
5d
Save
Mark Applied
Hide
Security Engineer and IT Systems Admin.
St. Louis or Jefferson City
OnsiteFull Time
2+ YOEActive Secret clearance, bachelor's degree or equivalent experience, Security+ or higher certification, and at least 2 years in cybersecurity, information assurance, system administration, or IT operations.
Risk Management Framework (RMF), Security Control Assessments (SCAs), Change Control Board (CCB), VM images, Department of Defense Instruction (DoDI), National Institute of Standards and Technology (NIST), Security Technical Implementation Guide (STIG), Assured Compliance Assessment Solution (ACAS), Nessus, Security Content Automation Protocol (SCAP) Compliance Checker (SCC), Enterprise Mission Assurance System (eMASS), Control Correlation Identifiers (CCI), Committee on National Security Systems Instruction (CNSSI), ISEC-MED, Plan of Action and Milestones (POAM), Security Control Assessor-Validator (SCA-V), Security Impact Analyses (SIA), Windows
1mo
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
Sitetracker Administrator
East Peoria or St Peters
$75k-$100k/yr RemoteFull Time
3+ YOEExperience administering Sitetracker or comparable platforms, 3+ years relevant experience, strong data/reporting skills, stakeholder coordination, and ability to translate business needs into system solutions.
Sitetracker, Salesforce
Explore Jobs