133 system administrator jobs at 81 companies in Ballwin, MO
🚀PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yrOn-SiteFull Time
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.
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
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
UNCOMN: A technology services firm delivering secure solutions and support for public and private sector operations.
5+ YOE5+ years related experience with AWS exposure, eligible for Secret clearance (US citizenship), IAT Level II certification required, CE certification in cloud/OS/network or development, strong troubleshooting and systems administration skills.
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEActive TS/SCI clearance, bachelor’s in a technical field, 5+ years relevant experience, DoD 8140.01/8570.01-M IAT Level II, RHEL 7/8/9 and Linux administration, AWS resource management, scripting (Python/Bash), AWS CLI and CloudFormation.
AWS, EC2, EBS, VPCs, IAM, Red Hat Enterprise Linux (RHEL) 7/8/9, Linux, Python, Bash, AWS CLI, CloudFormation
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.
System Administrator II / System Administrator III – Hybrid – Chesterfield, MO (St. Louis)
Chesterfield, Missouri, United States
HybridFull Time
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
GDITNYSE: GD: Delivers IT and mission services to government agencies.
5+ YOETS/SCI clearance required, 5+ years related experience, BA/BS or equivalent, experience with Windows, VDI/VMware, Citrix, SMS, SCCM; strong troubleshooting, communication, and hardware handling skills.
VMware VDI, Windows 11, Windows 10, Windows 7, Win11, Citrix, SMS, SCCM, Thin Client, KVM, VOIP
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
5+ YOETS/SCI cleared (or able to obtain TS/SCI + Poly), US citizenship, BA/BS or equivalent, 5+ years experience, Security+ or CASP and ITIL v4 preferred, strong Windows/VDI/Citrix/SCCM skills, excellent troubleshooting and communication.
Windows 11, Windows 10, Citrix, SMS, SCCM, VMware VDI, KVM, VOIP
D2 Consulting: Provides IT engineering and cybersecurity services to federal agencies.
5+ YOEActive TS/SCI clearance required; BA/BS or equivalent; 5+ years experience; Security+ or CASP and ITIL v4 Foundations; strong troubleshooting, communications, and desktop/sysadmin skills including VDI, Citrix, SMS, and SCCM.
Virtual Desktop Infrastructure (VDI), Microsoft Windows 11, Microsoft Windows 10, Microsoft Windows 7, Citrix, SMS, SCCM, Thin Client, KVM, VOIP
DriveCentric: AI-powered CRM platform built for automotive dealerships.
1+ YOE1+ year experience managing GTM/RevOps tools; Salesforce admin skills; experience with Gong, ZoomInfo, or similar; strong communication, detail orientation, and ability to translate business needs into technical requirements.
Esri: Developing software for digital mapping and spatial data analysis.
8+ YOE8+ years experience deploying and administrating enterprise ArcGIS or comparable systems; Windows/Linux sysadmin; scripting (Python, PowerShell, JavaScript, C#); RDBMS and SQL; Top Secret/SCI clearance and US citizenship; Bachelor\u0002s in STEM.
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.
i3 Broadband: Provides fiber-optic internet, television, and voice services to consumers.
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.
KVC Health Systems: Providing behavioral health and child welfare services to families.
3+ YOEBachelor's in business or related; valid driver’s license and auto insurance; 3+ years contract review/management; proficiency with Microsoft Word, PowerPoint, Excel, Outlook and contract management systems; strong communication, multitasking, and project skills.
Microsoft Word, Microsoft PowerPoint, Microsoft Excel, Microsoft Outlook
Help Desk / Systems Administrator / Service Desk Engineer
St. Louis, Missouri, United States
OnsiteFull Time
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
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.
4M Building Solutions: Provides commercial janitorial, housekeeping, and facility maintenance services.
2+ YOE2+ years HR/admin experience, undergraduate degree or equivalent preferred, proficiency with HRIS and payroll systems, recruiting and onboarding experience, payroll data entry, and strong organizational skills.
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