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440 systems developer jobs at 165 companies in O'Fallon, MO

1mo
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Systems Engineer
Springfield or St. Louis
$82k-$172k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEBachelor's in a technical field, 5+ years systems engineering experience (AWS/Linux), ability to obtain Top Secret/SCI with CI Polygraph, DoD 8140.01/8570.01 IAT Level II required, strong systems architecture and documentation skills.
AWS, Linux, DoDAF, UAF, TOGAF, Model-Based Systems Engineering (MBSE), Cameo Systems Modeler, MagicDraw, Sparx Enterprise Architect
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1mo
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Systems Engineer
King of Prussia or Springfield or St Louis
$112k-$179k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
6+ YOEMust hold Top Secret clearance and be willing to upgrade to TS/SCI with poly; BS in engineering or related science; 8 yrs systems engineering experience with BS (or 6 yrs with MS); experience with sensor imaging, test design, requirements, and strong written/oral communication.
National System for Geospatial-Intelligence (NSG), RADAR, LIDAR, OPIR, EO/IR, SAR, multispectral, hyperspectral
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2w
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Senior Systems Engineer
Saint Charles, Missouri, United States
$165k-$223k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
6+ YOEBachelor's in engineering (or related), 6+ years systems engineering experience, ability to obtain U.S. Top Secret clearance (U.S. citizenship required), experience with system design, requirements, verification, MBSE tools.
MSoSA, Cameo, MBSE, SysML
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2w
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Senior Systems Engineer
Saint Charles, Missouri, United States
$165k-$223k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
6+ YOEBachelor's in engineering or related field, 6+ years systems engineering experience, experience with system design, requirements, verification/validation, MBSE/ SysML and MSoSA/Cameo preferred, able to obtain U.S. Top Secret clearance.
MSoSA, Cameo, MBSE, SysML
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1w
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Mid Systems Engineer
Denver or St. Louis or Sterling or Springfield
$69k-$142k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
4+ YOETS/SCI required, bachelor in engineering/CS or equivalent, 4+ years systems engineering on software-intensive systems, requirements analysis, interface documentation, V&V, Agile experience, ability to work onsite at a government facility.
SAFe, MBSE
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Systems Engineer SME (Cloud)
O'Fallon, Illinois, United States
OnsiteFull Time
Second-61
Second-61: Provides managed technology, cybersecurity, and accounting services to businesses.
10+ YOE10+ years experience designing and deploying secure, scalable commercial cloud solutions for DoD environments; proficiency with RHEL, AWS networking, BGP, Palo Alto firewalls, DevSecOps tools (Git, Jenkins, Groovy, YAML); active DoD Secret clearance and US citizenship required.
Red Hat Enterprise Linux, Palo Alto, F5, F5 Big-IP, Panorama, Big IQ, Git, Jenkins, Groovy, YAML, AWS, WAF, GuardDuty, IAM, Security Groups, EC2, S3, Systems Manager, CloudFormation, CloudTrail, Lambda, AWS Workspaces, Route 53, Transit Gateway, VPCs, VPNs, BGP, Juniper, Cisco
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1mo
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Systems Engineer - Mid-Level
St. Louis, Missouri, United States
OnsiteFull Time
Assured Consulting Solutions
Assured Consulting Solutions: Provides strategic technology and engineering solutions for government and industry clients.
6+ YOEMid-level Systems Engineer with 6+ years, TS/SCI clearance, on-site in St. Louis; BS in Systems Engineering or related field or equivalent experience.
Model Based Systems Engineering, Software Development Frameworks
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2w
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Expert Systems Engineer - Geomatics
St Louis, Missouri, United States
$146k-$234k/yr OnsiteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
Master's in a STEM field or equivalent expert systems engineering experience; expert knowledge in collection systems, geospatial/intelligence data, programmatic management, DoD/IC processes, and TS/SCI clearance eligibility.
PDAL, GDAL, DGED, DTED, HRTE, TanDEM-X, TERCOM, Buckeye, IFSAR, LIDAR, EO, RADAR, GeoTIF, NITF, DoDAF, PAG, Geoint Foundation Engine (FGE), NGA Cloud Infrastructure
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1w
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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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4d
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Systems Engineer (Hiring Event)
Saint Louis or Springfield
$109k-$187k/yr OnsiteFull Time
National Geospatial-Intelligence Agency
National Geospatial-Intelligence Agency: Provides geospatial intelligence to support United States national security.
4+ YOEMinimum 4 years of IT/systems engineering experience, SDLC and configuration management experience, ability to capture requirements and manage integration, U.S. citizenship and ability to obtain Top Secret/SCI clearance.
SDLC, configuration management database, ITIL, Agile, SAFe, Waterfall, Spiral, GIS, Cloud, Artificial Intelligence
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1mo
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Senior Systems Engineer
Arnold, Missouri, United States
$130k-$140k/yr OnsiteFull Time
D2 Consulting
D2 Consulting: Provides IT engineering and cybersecurity services to federal agencies.
8+ YOEActive TS/SCI clearance; 8+ years enterprise systems engineering; IAT Level II DoD 8570; strong technical documentation.
Microsoft Visio, Jira, Confluence, Kanban, VMware, Red Hat Enterprise Linux, YUM, Satellite, Capsule, NetBackup, Cohesity, Veeam, DISA STIG, RMF, Juniper, Cisco, Palo Alto, Isilon, NetApp
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1w
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Control Systems Engineer
St. Louis, Missouri, United States
FieldFull Time
GrayMatter
GrayMatter: Industrial technology solutions and automation engineering services.
Bachelor's in engineering or equivalent; experience with Rockwell PLCs, control systems design/implementation, electrical schematics, troubleshooting, customer-facing skills, and 30–40% travel.
Rockwell PLCs, Siemens, Modicon, Rockwell HMIs, Wonderware, AVEVA, GE iFix, Ignition, Ethernet IP, Modbus, Cognex, Keyence, C++, C#, Python
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2mo
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Chief Systems Engineer
Saint Louis or Chantilly
OnsiteFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
18+ YOE18+ years DoD/IC experience; TS/SCI with poly; MS/PhD in Systems Engineering or related STEM field; MBSE and cloud/DoD/IC acquisition experience.
MBSE, Cloud, Service Oriented Architecture, Geospatial Intelligence, Digital Engineering
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1mo
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Linux Systems Engineer
Springfield or St. Louis
$160k-$216k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
5+ YOE5+ years Linux systems engineering; TS/SCI clearance with CI poly; US citizenship; Bachelor's degree in CS/Engineering or related; strong RHEL, Ansible, scripting.
Ansible, Bash, Python, RHEL, Satellite, Capsule, Nutanix, Grafana, Zabbix
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1mo
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Linux Systems Engineer
Springfield or St. Louis
$160k-$216k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
5+ YOE5+ years Linux systems engineering; TS/SCI clearance; US citizenship; Bachelor's in Computer Science or Engineering; experience with Ansible, Bash/Python, RHEL, Satellite/Capsule; virtualization (Nutanix); observability tools.
Ansible, Bash, Python, RHEL, Satellite, Capsule, Nutanix, Grafana, Zabbix
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1d
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Systems Engineer- St. Louis, MO or Solon, OH
St. Louis or Solon
OnsiteFull Time
Hubbell
HubbellNYSE: HUBB: Designs and manufactures electrical products and utility infrastructure solutions.
5+ YOEBachelor's in EE/CE/CS/Systems Engineering,5+ years system analysis/design experience, RF communications and hardware/software development experience,ability to write specifications and collaborate cross-functionally.
Microsoft Excel
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1mo
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Control Systems Developer II
Kansas City or Omaha or St. Louis or United States
OnsiteFull Time
CRB
CRB: Provides design and construction services for life sciences facilities.
Design, program, test, document, and commission automated control systems; configure PC/PLC hardware and networks; associate degree (or equivalent) in relevant field; Microsoft Office proficiency; travel up to 35%.
PLC, Microsoft Office
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1mo
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Principal Systems Engineer
Bridgeton, Missouri, United States
$46-$65/hr HybridContract
Day & Zimmermann
Day & Zimmermann: Provider of construction, engineering, staffing, and security services.
8+ YOEBachelor's in engineering,8+ years relevant experience,active Secret clearance,experience across multiple engineering disciplines,analytical and communication skills,ability to travel ~25% CONUS.
Microsoft Word, Microsoft PowerPoint, Microsoft Excel, Microsoft Access, Microsoft Lists, Microsoft Planner, Microsoft Project, Microsoft OneNote, Microsoft SharePoint, Microsoft Teams, Corel MindManager, Windchill Risk and Reliability, DOORS
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2w
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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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3w
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Lead Systems Engineer - Data Integration
St. Louis or Brentwood or Richmond Heights or Clayton or Maplewood or United States
RemoteFull Time
Enterprise Mobility
Enterprise Mobility: Provider of vehicle rental and diverse mobility solutions.
5+ YOEBachelor's in CS/CIS/MIS, 5+ years scripting experience (Python, Perl, BASH, KSH, JavaScript), JSON expertise, networking/firewall and Unix/Linux/Windows knowledge, full lifecycle development, on-call availability, U.S. work authorization and CST availability.
Python, Perl, BASH, KSH, JavaScript, JSON, Unix, Linux, Windows, Oracle, Microsoft SQL, MariaDB, PostgreSQL, Amazon, Azure
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