141 systems administrator jobs at 80 companies in Ballwin, MO

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
2d
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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
3w
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Systems Administrator
O'Fallon, Missouri, United States
$72k-$91k/yr OnsiteFull Time
City of O'Fallon
City of O'Fallon: Local government providing municipal services to the O'Fallon community.
1+ YOEBachelor's in IT, 1–2 years related experience, SAN/storage and VMware administration, virtual server and backup management, network/security tools, Microsoft SharePoint and SQL preferred.
SAN, VMware, Microsoft SharePoint, Microsoft SQL
2d
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Systems Administrator
St. Louis, Missouri, United States
$98k-$132k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
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
3w
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AWS ECDS Systems Administrator
St. Louis or United States
FieldContract
Abile Group
Abile Group: Provides IT, cybersecurity, and program management services to government agencies.
4+ YOETS/SCI clearance with CI poly required, Bachelor's in a technical field, 4+ years relevant experience, DoD 8140.01/8570.01-M IAT Level II certification, AWS administration, automation with Python/Bash, AWS CLI and CloudFormation.
AWS, EC2, EBS, VPC, IAM, AWS CLI, CloudFormation, Python, Bash, Linux
2w
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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
2w
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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
3w
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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
1mo
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Help Desk /  Systems Administrator / Service Desk Engineer
St. Louis, Missouri, United States
OnsiteFull Time
Forward Slash Technology
Forward Slash Technology: Providing managed IT services, cybersecurity, and cloud solutions.
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
4d
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Systems Administrator – AWS GovCloud (DoD Classified Environments)
Saint Louis or Belleville or Sun Prairie
OnsiteFull Time
NV5
NV5: Provides engineering, consulting, and geospatial solutions for infrastructure projects.
3+ YOEActive DoD Secret clearance, IAT Level II/III or equivalent cert, 3+ years systems administration experience managing AWS GovCloud workloads, Windows Server proficiency, scripting/IaC experience, and knowledge of DoD security frameworks.
AWS GovCloud (US), EC2, S3, RDS, IAM, CloudTrail, CloudWatch, VPC, KMS, SCAP, ACAS, Splunk, ELK stack, Windows Server, Bash, Python, PowerShell, Terraform, CloudFormation, ECS, EKS, AWS Organizations, Service Control Policies (SCPs), RMF, DISA STIGs, FedRAMP High, NIST SP 800-53
4d
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Systems Administrator – AWS GovCloud (DoD Classified Environments)
Belleville, Illinois, United States
OnsiteFull Time
NV5
NV5: Provides engineering, testing, inspection, and infrastructure consulting services.
3+ YOEActive DoD Secret clearance, IAT Level II/III certification (e.g., Security+ CE, CASP+, CISSP),3+ years systems administration with AWS GovCloud experience, Windows Server proficiency, scripting/IaC experience, DoD cybersecurity knowledge.
AWS GovCloud (US), EC2, S3, RDS, IAM, CloudTrail, CloudWatch, VPC, KMS, SCAP, ACAS, CloudFormation, Terraform, Bash, Python, PowerShell, Splunk, ELK, Security Hub, SIEM, ECS, EKS, AWS Organizations, Service Control Policies
2w
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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)
1w
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Camera Systems Administrator
Clayton, Missouri, United States
$53k-$64k/yr OnsiteFull Time
St. Louis County
St. Louis County: Provides essential public services and governance for St. Louis County.
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.
1mo
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Linux Systems Administrator - HPC (TS/SCI Clearance Required)
Alexandria or Chantilly or Springfield or Saint Louis
OnsiteFull Time
North Point Technology
North Point Technology: Technology services and engineering for federal government missions.
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
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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
1mo
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Windows Systems Administrator (Associate or Mid-Level)
Berkeley, Missouri, United States
OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
1+ YOE1+ years in Windows Server and Windows desktop OS, hardware install, and software deployment; ability to obtain SAP access; Security+ preferred.
Windows Server, Windows Desktop OS, VMware, Active Directory, McAfee, HBSS, PowerShell
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
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
4w
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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
23h
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OFFICE PERSONNEL ADMINISTRATOR (FULL TIME) (1554586)
Saint Louis, Missouri, United States
$19-$25/hr OnsiteFull Time
Compass Group
Compass GroupLondon Stock Exchange: CPG: Provides contract food and support services globally.
Performs clerical duties including phone answering, bookkeeping, scheduling, travel arrangements, meeting support; requires prior project management, event planning, and system administration experience.
3w
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System Administrator IV- IDCS(M)
Scott Air Force Base or San Antonio
OnsiteFull Time
Semper Valens Solutions
Semper Valens Solutions: Provides systems engineering, software development, and technical support services.
10+ YOEActive TS/SCI with CI poly required, 10+ years relevant experience, Bachelor's degree in a relevant field, DoD 8140.01 IAT II certified, systems administration experience and familiarity with Air Force cyber weapon systems and network architectures.