36 systems support engineer jobs at 24 companies in O'Fallon, IL
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Senior Systems Engineer
Denver or St. Louis or Sterling or Springfield
$82k-$172k/yr OnsiteFull Time
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
1mo
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Systems Integration Engineer (Experienced or Lead)
Hazelwood or Saint Charles or Berkeley
$112k-$185k/yr OnsiteFull Time
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
1mo
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Senior Systems Engineer - Site Reliability Engineering
St. Louis, Missouri, United States
HybridFull Time
3+ YOE3+ years in software engineering supporting JAVA, Web Services, C/C++, PL/SQL; 2+ years middleware (Tuxedo, WebLogic, Tomcat); 2+ years AIX/Linux sysadmin; scripting and monitoring tool experience; authorized to work in the U.S.; reside near St. Louis.
JAVA, Web Services, C/C++, PL/SQL, Tuxedo, WebLogic, Tomcat, AIX, Linux, Shell, Bash, Python, Perl, PowerShell, Splunk, Dynatrace, SQL
1mo
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Systems Engineer - Contract
St. Louis, Missouri, United States
$44-$54/hr OnsiteFull Time, Contract
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
1mo
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Senior Systems Engineer - Site Reliability Engineering
St. Louis or Brentwood or Richmond Heights or Clayton or Maplewood
HybridFull Time
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
1d
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Senior Systems Cloud Engineer
St. Louis, Missouri, United States
OnsiteFull Time
Expertise administering Windows Server, Microsoft Azure, Microsoft 365, Active Directory/Entra ID, Exchange and networking; PowerShell automation; disaster recovery and security best-practices; ability to support 24/7 on-call rotation.
Windows Server, Microsoft Azure, Microsoft 365, Active Directory, Entra ID, GPOs, PowerShell, Microsoft Exchange, DNS, DHCP, TLS/SSL
2w
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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
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
2mo
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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
1mo
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Control Systems Analyst II (Off-hours)
St. Louis, Missouri, United States
$30-$38/hr RemoteFull Time
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
1mo
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Grid Solutions Engineer
St. Louis, Missouri, United States
$84k-$204k/yr HybridFull Time
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
4w
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Application Engineer
Hoffman Estates or St. Louis
OnsiteFull Time
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
2d
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Manager, Enterprise Systems Engineering - MO/MN
Kansas City or Minneapolis or St. Louis
$156k-$235k/yr RemoteFull Time
5+ YOEPre-sales experience,5+ years relevant technology/design/communications experience supporting enterprise storage,networking,cloud; familiarity with storage architectures,RFP responses,and strong verbal/written skills.
LAMP stack, AWS, Azure, GCP, k8s, VMware, Linux, NFS, SQL, Oracle, TCP/IP, Ethernet, DAS, NAS, SAN, FC, iSCSI, OSD, containers, microservices
1mo
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DevOps Engineer - Junior
Denver or Sterling or St. Louis
$58k-$116k/yr OnsiteFull Time
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
3w
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Technical Support Manager
Maryland Heights, Missouri, United States
$105k-$120k/yr OnsiteFull Time
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.
2w
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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
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
2mo
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Technical Support Engineering Manager
St. Louis or Kansas City or Israel
$140k-$160k/yr OnsiteFull Time
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
2w
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Technical Acquisition Support
St. Louis, Missouri, United States
OnsiteFull Time
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)
1mo
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System Engineer – ArcGIS (Mission-Focused)
Redlands or St. Louis or Vienna
$121k-$198k/yr OnsiteFull Time
8+ YOE8+ years supporting enterprise ArcGIS and system engineering; experience with ArcGIS Enterprise/Desktop/Online, Windows/Linux administration, scripting (Python, PowerShell, JavaScript, C#), RDBMS and SQL; US citizen with active Top Secret/SCI; Bachelor's in STEM.
ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS, ArcGIS Runtime, Windows, Linux, Python, PowerShell, JavaScript, C#, SQL Server, Oracle, PostgreSQL
2w
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Quality Engineer II in Facilities & Metrology
St. Louis, Missouri, United States
OnsiteFull Time
2+ YOEBachelor's in engineering or equivalent plus 2+ years supporting quality systems/validation in FDA-regulated or biotech environments; cGMP, GMP/ISO knowledge; strong communication and cross-functional collaboration; audit and CAPA experience.
TrackWise, Veeva, Kneat, Microsoft Office
1w
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Cyber Data Analysis Engineer
St. Louis, Missouri, United States
OnsiteFull Time
5+ YOETS/SCI and polygraph required; Bachelor’s in a technical field; 5+ years systems-engineering experience; IAT II and obtain CSSP Infrastructure Support within 120 days; advanced Linux, networking, virtualization, SIEM, and scripting skills.
SIEM, Elastic, Splunk, ArcSight, Cribl, Python, Bash, Powershell, Linux, VMware ESXi, Citrix XenServer, Microsoft Hyper-V, AWS, Google, Rackspace, OpenStack, IPAM, DNS, DHCP
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