3mo
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Commercial Data Integration Platform - Lead Developer
O'Fallon, Missouri, United States
$140k-$231k/yr OnsiteFull Time
Lead developer with leadership experience, Databricks, data integration, and platform reliability responsibilities.
Databricks, Recorded Future, Data governance
2mo
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Lead Software Engineer–Developer
Berkeley, Missouri, United States
$161k-$217k/yr OnsiteFull Time
5+ YOELead software engineering role requiring Top Secret clearance, 5+ years Java/C++, 1+ year MATLAB, and project leadership.
Java, C++, MATLAB, Git, GitLab, CMake, Linux, Windows
2mo
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Lead Software Engineer–Developer
Berkeley, Missouri, United States
$161k-$217k/yr OnsiteFull Time
5+ YOEBachelor’s degree; active Top Secret/SCI clearance; 5+ years software engineering; 5+ years Java/C++; 3+ years leading projects; 1+ year MATLAB.
Java, C++, MATLAB, Git, GitLab, CMake, Linux, Windows
2mo
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Lead Software Engineer (.Net)
Saint Louis, Missouri, United States
$112k-$141k/yr HybridMultiple Commitments Available
5+ YOE5+ years in software development; 1–2 years in technical leadership; strong .NET Core/C#, Azure, NoSQL/Relational DB, CI/CD, REST APIs; able to mentor and lead architecture efforts.
.NET Core, C#, Microsoft Azure, Cosmos DB, MongoDB, Docker, Kubernetes, React, Angular, Vue.js
2mo
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Lead System Engineer
Hazelwood, Missouri, United States
$150k-$205k/yr OnsiteFull Time
10+ YOELead system engineer with 10+ years in complex hardware/software/biomedical systems; FDA regulatory experience; bachelor’s in engineering or science.
1mo
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Lead Mechanical Engineer
Hazelwood, Missouri, United States
$120k-$175k/yr OnsiteFull Time
7+ YOELead mechanical engineer with 7+ years in complex hardware, software, biology, materials, or chemistry systems; hands-on design and cross-functional collaboration.
SolidWorks, GD&T, ASME Y14.5, PDM
3d
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Lead Software Developer
Seattle or St. Louis or Arlington or Ridley Park or Charleston or Mesa
$183k-$265k/yr HybridFull Time
10+ YOEBachelor's degree in a technical field and 10+ years developing software, data pipelines, and cloud-based data services; U.S. Person required for export control; drug testing and COI assessment apply.
Microsoft Teams, Mattermost, GitHub
1mo
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Lead Project Engineer
St. Louis, Missouri, United States
HybridFull Time
5+ YOE5+ years engineering/technical/project execution experience; BS in Engineering; knowledge of boiler/steel construction codes; ability to review specifications; strong communication; travel up to 20%; capable of leading and coordinating resources.
SQL, VBA, Contract Specifications, Engineering Drawings
3w
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Lead Operating Engineer
St. Louis, Missouri, United States
$30-$35/hr OnsiteFull Time
5+ YOE5+ years trade experience in commercial building mechanical/electrical/plumbing systems; HS diploma or GED; trade licenses/permits as required; EPA 608 universal certification; valid driver\u000fs license; ability to lift 50 lbs; basic Outlook/Excel/Word skills.
Microsoft Outlook, Microsoft Excel, Microsoft Word
2mo
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Lead Mechanical Engineer
Clayton, Missouri, United States
OnsiteFull Time
7+ YOE3+ Mgmt7–10 years in mining/mineral processing; 3+ years in management; PE license or ability to obtain within 1 year; PMP a plus; Bachelor's in mechanical engineering; Master’s preferred; strong leadership and project management.
1mo
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Lead Firewall Engineer
Arnold, Missouri, United States
$90k-$190k/yr OnsiteFull Time
8+ YOEActive TS/SCI clearance; 8+ years network security; 5+ years large-scale enterprise networks; DoD architecture familiarity; firewall/boundary team leadership; experience with F5, Palo Alto, Juniper SRX; DoD PKI/AD; TLS issues; willingness to work weekends.
F5, Palo Alto, Juniper SRX, OCSP, Active Directory, SAML, OAuth, TLS/SSL, DoD PKI, Kerberos, LDAP, STIG, SRG
2mo
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Lead Design Engineer (Electrical) (63884)
Ellisville, Missouri, United States
$97k-$143k/yr HybridFull Time
3+ YOEBachelor’s degree in a technical discipline; minimum 3 years electrical product development experience; no immigration sponsorship.
SolidWorks, PTC Creo, 3D CAD
2mo
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Lead Mechanical Engineer -- Energy & Industrial Group
Clayton, Missouri, United States
$117k-$180k/yr HybridFull Time
7+ YOE3+ MgmtLead mechanical engineer with 7+ years in design of mechanical systems for heavy industrial plants; requires BS in Mechanical Engineering, ABET-accredited; MS preferred; strong leadership and design coordination; PE license preferred.
P&ID, system design, Calculations, Excel, Python, MATLAB, likeliest design software
23h
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Lead Software Engineer
O'Fallon, Missouri, United States
HybridContract
Bachelor's in CS/IS, strong full-stack Java, API, Angular, React skills; experience with Agentic frameworks, MCP and LLM integrations; Qlik Sense and data architecture experience; strong analytical and communication skills.
Java, APIs, Angular, React, Agentic Frameworks, MCP, LLMs, Qlik Sense, Tableau, Power BI, WebFocus, Hadoop, Kafka
1mo
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Lead Substation Engineer 2 - Grid
Clayton, Missouri, United States
$135k-$206k/yr HybridFull Time
12+ YOEBachelor degree in engineering; 12+ years substation design experience at 138 kV+; PE license; strong writing and coordination skills; experience with relay calculations and protective relay equipment; proficient with relevant software; strong communication.
SKM, ETAP, ASPEN, CDEGS, vendor software, MS Office
1mo
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Lead Project Engineer - Traffic Engineering
Dallas or El Paso or Fort Worth or Jefferson City or Jerseyville or Lawrence or Manhattan or Overland Park or Rolla or San Antonio or St. Louis or Dallas
OnsiteFull Time
8+ YOEEight+ years transportation engineering experience; PE licensure; proficiency with Microstation/Visum/AutoCAD/Civil 3D; travel required.
Microstation, Visum, AutoCAD, Civil 3D, Geopak, InRoads, Synchro, Deltek Vision
1mo
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Lead Conveyance Engineer-MW Region
Chicago or Minneapolis or Indianapolis or Saint Louis or Detroit or Louisville
HybridFull Time
7+ YOEBachelor's in Civil or Environmental Engineering; 7-10 years water resources experience; PE license; design experience in water/wastewater systems; proficiency in relevant software; strong client service and leadership skills.
Civil 3D, WaterCAD, SewerCad, OpenRoads Designer, Bentley HAMMER, InfoWater, InfoSewer
1mo
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Lead ServiceNow Developer
Atlanta or Saint Louis
$73k-$171k/yr OnsiteFull Time
5+ YOE5+ years application development experience (3+ years ServiceNow ITOM/ITSM), CIS-ITOM required, experience with Event Management, MID Server, Dynatrace/Datadog/Splunk/AppDynamics, JavaScript/Glide scripting, REST/SOAP integrations, cloud (AWS/Azure/GCP), CMDB/CSDM, and strong communication skills.
ServiceNow, Dynatrace, Datadog, Splunk, AppDynamics, MID Server, CMDB, CSDM, Health Log Analytics (HLA), Operational Intelligence, REST, SOAP, JavaScript, Glide scripting, Flow Designer, AWS, Azure, GCP, AIOps
1mo
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OneStream Senior Developer
Chicago or Milwaukee or Dallas or Columbus or Cincinnati or New York City or Cleveland or Oklahoma City or Austin or Albany or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or Morristown or San Francisco or Boston or Denver or Philadelphia or Overland Park or Los Angeles or Charlotte or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Nashville or Detroit or San Diego
$63k-$183k/yr OnsiteFull Time
3+ YOE3+ years OneStream development, 2+ years VB.net or C# and Data Management, 3+ years reporting and leading technical workstreams; OneStream OCA (or willing to certify), Bachelor’s degree or equivalent.
OneStream XF, VB.net, C#, SQL, XML, Sensible AI, CPM Express, Oracle, Hyperion, Cognos TM1, SAP, Anaplan, Adaptive, Host Analytics
3w
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Lead Operating Engineer
Scott AFB, Illinois, United States
$42/hr OnsiteFull Time
1+ YOEHigh school diploma, 1+ year leading technicians in 24/7 operations, licensed Stationary Engineer Class I or journeyman-level trade certification (or equivalent), able to perform PM/CM tasks and ensure regulatory compliance.
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