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1,760 system jobs at 692 companies in O'Fallon, MO

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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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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2w
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Senior System Architect
Denver or St. Louis or Sterling or Springfield
$99k-$207k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
8+ YOETS/SCI clearance with polygraph eligibility, 8+ years systems/software engineering with architecture leadership, experience with large distributed cloud-native systems, SAFe, APIs, and strong stakeholder communication.
SAFe, APIs
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2w
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Senior System Architect
Denver or Springfield or Sterling or St. Louis
$99k-$207k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
8+ YOETS/SCI clearance required, bachelor's in CS/Engineering or equivalent, 8+ years systems/software engineering with architecture leadership, experience with cloud-native distributed systems, Agile/SAFe environments, strong communication.
Agile, SAFe
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1w
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System Engineer (Unix)
Scott AFB, Illinois, United States
OnsiteFull Time
By Light Professional IT Services
By Light Professional IT Services: Provides IT systems engineering and cybersecurity solutions for federal agencies.
10+ YOEInstall, configure, and maintain UNIX/Linux and Microsoft server environments; troubleshoot systems; support production infrastructure; participate in on-call rotations; active DoD Secret clearance required.
Microsoft Windows Server 2012/2016, Azure, AWS, Linux, LDAP, Kerberos, Active Directory, SAN, NAS, Splunk, Cisco, McAfee, Solaris
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1mo
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System Engineer- ArcGIS
St. Louis or Vienna
$121k-$198k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
8+ YOE8+ years experience designing, implementing, and administering enterprise ArcGIS or comparable systems; US citizenship with active Top Secret/SCI clearance; Bachelor's in STEM; experience with Windows/Linux, scripting, RDBMS, and network concepts.
ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, ArcGIS Runtime, Python, PowerShell, JavaScript, C#, Windows, Linux, SQL Server, Oracle, PostgreSQL
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1mo
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System Engineer (MBSE)
St. Louis, Missouri, United States
HybridFull Time
Agile Defense
Agile Defense: Provides IT modernization and cybersecurity for federal government agencies.
5+ YOE5+ years systems engineering experience, Secret clearance required to start, MBSE (Cameo), TFS/Azure DevOps, OFP SIL testing experience, ability to define requirements, perform trade studies, risk assessments, and V&V.
Model-Based Systems Engineering (MBSE), Cameo, Team Foundation Server, Azure DevOps, Operational Flight Program (OFP), System Integration Lab (SIL)
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3mo
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Lead System Engineer
Hazelwood, Missouri, United States
$150k-$205k/yr OnsiteFull Time
bioMérieux
bioMérieuxEuronext Paris: BIM: Develops and manufactures in vitro diagnostic solutions for laboratories.
10+ YOELead system engineer with 10+ years in complex hardware/software/biomedical systems; FDA regulatory experience; bachelor’s in engineering or science.
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2mo
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System Engineer
Springfield or Vienna or St. Louis
OnsiteFull Time
INCATech
INCATech: Geospatial technology services provider.
8+ YOE8+ years of professional experience; enterprise ArcGIS design/implementation; Windows/Linux admin; scripting languages; networking concepts; RDBMS SQL knowledge; BS in CS/GIS/STEM.
ArcGIS, Windows, Linux, PowerShell, Python, Javascript, C#, SQL Server, Oracle, PostgreSQL
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3mo
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Lead System Engineer
Hazelwood, Missouri, United States
$150k-$205k/yr OnsiteFull Time
bioMérieux
bioMérieuxEuronext Paris: BIM: Provides diagnostic solutions for infectious diseases and industrial microbiology.
10+ YOEBachelor's degree in engineering or science; 10 years in complex hardware/software/biology systems; FDA regulatory experience; strong leadership and coordination skills.
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1mo
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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.
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1mo
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System Architect — MDDI / MBSE
Scott Air Force Base, Illinois, United States
OnsiteFull Time
CDIT
CDIT: Provides IT, software development, and cybersecurity for government agencies.
10+ YOE10+ years enterprise architecture/systems engineering, 3+ years MBSE on large DoD or federal programs, SysML and MBSE tool proficiency, SAP S/4HANA familiarity, API/messaging integration, RMF/NIST/Zero Trust alignment, active DoD clearance or eligibility, bachelor's degree.
CACI MDDI, SysML, Cameo Systems Modeler, MagicDraw, Capella, Rhapsody, SAP S/4HANA, REST, SOAP, Kafka, API gateways, DoDI 5000.97, RMF, NIST 800-53, NIST 800-207, DoD SRG IL4/IL5, DoDAF, TOGAF
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2w
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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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Engineer - Quality System-Aerofil
Sullivan, Missouri, United States
OnsiteFull Time
kdc/one
kdc/one: Contract manufacturer of beauty, personal care, and household products.
5+ YOE5+ years quality experience, bachelor\u0002s in engineering/quality/science, experience leading audits and quality systems (ISO 22716), strong technical writing and leadership, familiarity with RCA/FMEA/CAPA.
ISO 22716, RCA, FMEA, CAPA
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3mo
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Manager, System & Device Testing
St. Louis, Missouri, United States
OnsiteFull Time
Stereotaxis
StereotaxisNYSE American: STXS: Manufactures robotic surgical systems for endovascular and cardiac procedures.
5+ YOE1+ MgmtManage system and device testing team; develop verification plans; manage schedules; ensure product quality; document tests.
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3w
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System Administrator (Desktop Support)
Arnold, Missouri, United States
$131k-$177k/yr OnsiteFull Time
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
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3w
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System Administrator (Desktop Support)
Arnold, Missouri, United States
$131k-$177k/yr OnsiteFull Time
GDIT
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
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5d
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Scheduling System Coordinator (Hybrid) - Ophthalmology
Creve Coeur, Missouri, United States
$19-$30/hr HybridFull Time
Washington University in St. Louis
Washington University in St. Louis: Providing higher education and conducting advanced academic research.
3+ YOEHigh school diploma or equivalent, 3 years medical office scheduling experience, ability to maintain and troubleshoot scheduling systems, generate reports, and coordinate with clinical and billing staff.
IDX, Computer Systems
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1mo
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System Support Specialist
Earth City or St. Louis
HybridFull Time
CCA Global Partners
CCA Global Partners: Empowering independent businesses through cooperative scale and shared services.
2+ YOE2+ years IT support experience, high school diploma or equivalent, strong Windows, Microsoft 365, macOS and mobile device knowledge, excellent communication, troubleshooting, documentation, and customer-service skills.
Microsoft Windows, RDP, macOS, iOS, Android, Microsoft 365, Microsoft Office, Microsoft Outlook, Microsoft Teams, Microsoft OneDrive
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3d
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MC&G System Transition & Integration Specialist
St. Louis, Missouri, United States
OnsiteFull Time
Trinity Global Consulting
Trinity Global Consulting: Provides professional support services to US government agencies.
2+ YOE2 years NSG experience, 2 years system transition and systems integration experience, 2 years Agile/SAFe experience; program management or systems engineering support preferred.
Scaled Agile Framework (SAFe)
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