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42 systems support engineer jobs at 30 companies in O'Fallon, MO

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Senior Systems Engineer
Denver or St. Louis or Sterling or Springfield
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
8+ YOETS/SCI clearance with polygraph eligibility, Bachelor\u0002s in engineering/computer science or equivalent, 8+ years systems engineering experience, requirements management, interface definition, V&V, government program support, strong writing and communication.
MBSE, SAFe, GEOINT
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1mo
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Systems Integration Engineer (Experienced or Lead)
Hazelwood or Saint Charles or Berkeley
$112k-$185k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
Bachelor's in a STEM field, systems engineering and system-integration experience, familiarity with hardware/software integration, operating systems (Windows/Linux), scripting, and ability to support buildup, integration, testing and troubleshooting. Active U.S. Secret clearance and U.S. citizenship required.
Windows, Linux, BIOS, File Servers, Scripting
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Systems Engineer
St. Louis, Missouri, United States
OnsiteFull Time
Iron Mountain
Iron MountainNYSE: IRM: Provides secure storage and information management services globally.
5+ YOEExperienced IT professional to support on-site service operations for an imaging center; requires Windows and server experience, SQL and Active Directory knowledge, Kofax deployment/troubleshooting, PowerShell desired, and willingness to travel up to 15%.
remote control tools, Windows 10, Windows 11, Windows Server 2016, SQL Database, Active Directory, Kofax, PowerShell
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3w
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Systems Engineer - Contract
St. Louis, Missouri, United States
$44-$54/hr OnsiteFull Time, Contract
World Wide Technology
World Wide Technology: Global technology solutions provider and systems integrator.
5+ YOEMinimum 5 years managing VMware, Windows Server, and Linux; 5+ years building automation with PowerShell/Python/Puppet/Ansible/BASH; experience with VxRail, monitoring tools, ServiceNow, on-call support, and Integration Center/onsite lab environments.
VxRail, VMware ESXi, Microsoft Windows Server, Microsoft Active Directory, RHEL, CentOS, Ubuntu, Microsoft PowerShell, Python, Ansible, Puppet, BASH, Splunk, LogicMonitor, Tanium, Tenable, ServiceNow, Cisco IOSXE, Cisco ASA/FTD
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Senior Systems Engineer - Site Reliability Engineering
St. Louis or Brentwood or Richmond Heights or Clayton or Maplewood
HybridFull Time
Enterprise Mobility
Enterprise Mobility: Provider of vehicle rental and diverse mobility solutions.
3+ YOE3+ years in software engineering environments supporting Java, Web Services, C/C++, PL/SQL; 2+ years middleware (Tuxedo, WebLogic, Tomcat) and AIX/Linux sysadmin; 2+ years scripting (Shell/Bash, Python, Perl, PowerShell); 1+ year Splunk/Dynatrace; must reside in St. Louis area and be authorized to work in the U.S.
Java, Web Services, C/C++, PL/SQL, Tuxedo, WebLogic, Tomcat, AIX, Linux, Shell/Bash, Python, Perl, PowerShell, Splunk, Dynatrace, SQL
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Lead Systems Integrator
Berkeley, Missouri, United States
$137k-$185k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
7+ YOEActive U.S. Secret clearance, BS in engineering or related field, 7+ years relevant experience, 3+ years system architecture or V&V, MBSE/CAMEO experience preferred, ability to lead teams and support program lifecycle.
Model Based Systems Engineering (MBSE), CAMEO, Systems Modeling Language (SysML), Open Mission Systems (OMS), Universal Command and Control Interface (UCI)
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Field Service Engineer - IT & Systems
Kansas City or St. Louis or Missouri or Kansas or Arkansas or Oklahoma
$80k-$95k/yr FieldFull Time
Vision RT
Vision RT: Provides 3D camera systems for surface guided radiation therapy.
Field-based engineer to install, maintain, and support SGRT systems with up to 80% travel; strong Windows, networking, hardware troubleshooting, and customer-service skills required.
Microsoft Windows, Windows Server, ping, tracert, ipconfig, SQL, RAID
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1mo
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Geospatial Systems Engineer – Multiple Positions at Junior/Mid/Senior Levels
St. Louis or St. Charles or Virginia
OnsiteFull Time
NV5
NV5: Provides engineering, testing, inspection, and infrastructure consulting services.
8+ YOEUS citizen with active/current Top Secret clearance with SCI eligibility, Bachelor's in a STEM field, 8+ years supporting enterprise ArcGIS or similar systems, Windows/Linux administration, scripting (Python, PowerShell, JavaScript, C#), and RDBMS/SQL experience.
ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, ArcGIS Runtime, Esri, Windows, Linux, Python, PowerShell, JavaScript, C#, SQL Server, Oracle, PostgreSQL
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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
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4w
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Control Systems Analyst II (Off-hours)
St. Louis, Missouri, United States
$30-$38/hr RemoteFull Time
GrayMatter
GrayMatter: Industrial technology solutions and automation engineering services.
2+ YOEAssociate degree in Controls Systems Technology (or equivalent), 2+ years controls/commissioning experience, hands-on PLC/SCADA/network integration experience preferred, English proficiency, troubleshooting and remote support skills.
PLC, SCADA, HMI, Historian, Ethernet/IP, Modbus, BACnet
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Applications Engineer - Financial Systems
Kansas City or Atlanta or New York or Chicago or Los Angeles or Washington or Birmingham or Boston or Chattanooga or Charleston or Dallas or Denver or Edwardsville or Fort Lauderdale or Fort Worth or Houston or Jefferson City or Miami or Nashville or Park City or Philadelphia or Phoenix or Raleigh or Seattle or San Francisco or Salt Lake City or St. Joseph or St. Louis or Wilmington
$130k-$150k/yr RemoteFull Time
Polsinelli
Polsinelli: Am Law 100 law firm providing comprehensive legal services.
Experience supporting legal finance applications (Elite 3E or similar), strong SQL and BI skills, integrations, and cross-functional collaboration.
Elite 3E, Aderant Expert, Aderant Sierra, Bo​omi, BizTalk, SQL, Power BI, SSRS, Chrome River/Emburse, ClientPay/LawPay, ALP Imaging, Clocktimizer, Xcelerate, e-billing platforms, XML, CSV, APIs
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2mo
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Controls Engineer
Chesterfield, Missouri, United States
OnsiteFull Time
Mark Andy
Mark Andy: Manufacturer of narrow-web printing and finishing equipment.
2+ YOEDesign and develop control systems; program PLCs, HMIs, and motion control; document and support installation/commissioning; collaborate across teams.
PLC, HMI, Motion control, GUI design, CAD, Electrical codes NFPA-79 NEC EC standards
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1mo
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Grid Solutions Engineer
St. Louis, Missouri, United States
$84k-$204k/yr HybridFull Time
Ameren
AmerenNYSE: AEE: Generates and distributes electric and natural gas utility services.
3+ YOEBachelor's required; 3+ years (engineer) / 5+ (senior) / 7+ (lead) relevant experience. Experience with electric distribution systems, ADMS, SCADA, GIS, software development, relational databases, and server/network infrastructure; hybrid work and off-hours support required.
Distributed Energy Management System (DERMS), Linux, Windows Server, Oracle, SQL Server, Rancher Kubernetes Engine, Palo Alto Firewalls, MuleSoft, Splunk SIEM, Dynatrace Application Monitoring, ERSI, SCADA, Advanced Distribution Management System, Outage Analysis System
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2w
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Application Engineer
Hoffman Estates or St. Louis
OnsiteFull Time
Nidec
NidecTokyo Stock Exchange: 6594: Manufactures electric motors and electronic components for industrial applications.
Experience in motion control, motor drives, system integration, PLC programming, and customer-facing technical support; familiarity with industrial communication protocols and ROS; bachelor's degree or technical degree preferred.
CANopen, EtherCAT, PROFINET, EtherNet/IP, PLC, ROS (Robot Operating System), SolidWorks
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1mo
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DevOps Engineer - Junior
Denver or Sterling or St. Louis
$58k-$116k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
0+ YOETS/SCI clearance (ability to obtain Poly), Bachelor's degree in a technical discipline, 0–3 years supporting DevOps/DevSecOps or system administration, familiarity with Linux, scripting (Python/Bash/PowerShell), Git, CI/CD and container technologies.
Linux, Python, Bash, PowerShell, Git, Jenkins, GitLab CI/CD, GitHub Actions, Bamboo, Docker, Kubernetes, AWS, Azure, Google Cloud, Terraform, Ansible
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1w
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Technical Support Manager
Maryland Heights, Missouri, United States
$105k-$120k/yr OnsiteFull Time
Potter Global Technologies
Potter Global Technologies: Manufacturer of life safety and emergency communication equipment.
5+ YOEBachelor's degree or equivalent, 5+ years with fire alarm/life‑safety systems, team leadership experience preferred, strong troubleshooting, documentation, and knowledge of NFPA/UL codes.
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1d
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Senior Deployment Engineer, AppGate ZTNA (Federal)
Washington or Scott Air Force Base or Gunter Air Force Base or Kirtland Air Force Base or Maryland or Virginia
$177k-$192k/yr RemoteFull Time
Gormat
Gormat: Provides cybersecurity and systems engineering services to government defense agencies
8+ YOE8+ years delivering networking/security/platform solutions, Linux administration, scripting (Bash, PowerShell, JavaScript), REST API integration, identity systems, public cloud and virtualization experience, STIG/SCAP hardening, and federal environment support.
AppGate ZTNA, Linux, Bash, PowerShell, JavaScript, REST APIs, Active Directory, DNS, PKI, SAML, OIDC, RADIUS, LDAP, AWS, Azure, GCP, VMware vSphere, Microsoft Hyper-V, Terraform, Ansible, SIEM, SOAR, NGFWs, STIG, SCAP
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1mo
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Technical Support Engineering Manager
St. Louis or Kansas City or Israel
$140k-$160k/yr OnsiteFull Time
Cyera
Cyera: AI-native platform securing enterprise data across cloud environments.
5+ YOE2+ MgmtBachelor's in CS/Engineering or equivalent, 5+ years in support/DevOps/SRE/engineering, 2+ years leading technical teams, cloud (AWS/Azure/GCP), distributed systems, APIs/auth, log analysis, and collaboration with engineering.
AWS, Azure, GCP, REST, SSO, OAuth, SAML, Docker, Kubernetes, Python, Bash, SQL, NoSQL
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Technical Acquisition Support
St. Louis, Missouri, United States
OnsiteFull Time
Axiologic Solutions
Axiologic Solutions: Providing engineering and IT services to federal government agencies.
12+ YOEB.S. in IT/Cloud/Data Engineering/Geography,12 years experience designing and deploying geospatial intelligence systems, knowledge of cloud, systems engineering, security, and acquisition lifecycle.
GSR, The Globe, NCL, GIMS, GeoNames, Cedalion, NES, Map of the World (MOW), SOA, Open Geospatial Consortium (OGC)
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2mo
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Field Service Engineer - St. Louis, MO (MO-St. Louis, US)
Saint Louis, Missouri, United States
RemoteFull Time
Grifols
GrifolsMadrid Stock Exchange: GRF: Develops plasma-derived medicines and clinical diagnostic solutions.
Providing high-quality service and support to Grifols customers; manage preventive maintenance, system upgrades, and documented regulatory activities; travel up to 70%
ServiceMax, Salesforce
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