373 principal engineer jobs at 126 companies in Lindenhurst, IL
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Principal Engineer
Chicago, Illinois, United States
$245k-$285k/yr HybridFull Time
Principal-level experience spanning software architecture, AI engineering, and DevOps, including domain-driven design, agent systems, infrastructure-as-code, GitOps, CI/CD, and production systems in high-growth environments.
Rust, TypeScript, Python, AWS, Terraform, GitOps, CI/CD, LLM, MCP
4d
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Principal Engineer
Milwaukee, Wisconsin, United States
OnsiteFull Time
10+ YOEBachelor's degree in mechanical engineering or related field, 10+ years of engineering experience, CAD and simulation expertise, manufacturing knowledge, cross-functional development experience, and travel up to 10%.
CAD, simulation, engineering analysis tools
3w
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Principal Engineer
West Allis, Wisconsin, United States
$38-$53/hr OnsiteFull Time
3+ YOEBachelor's in Civil Engineering required, PE preferred (obtainable within a year), 3+ years municipal engineering experience, CAD/GIS ability, Microsoft Office and Adobe Acrobat proficiency, strong writing and math skills.
CAD, GIS, Microsoft Outlook, Microsoft Word, Microsoft Excel, Adobe Acrobat
2mo
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Principal Engineer
Milwaukee, Wisconsin, United States
OnsiteFull Time
10+ YOEBSc in Mechanical Engineering or Engineering Mechanics (MS preferred), 10+ years design experience, strong 3D CAD (ProE, Solidworks, NX) and FEA skills, mechanical/materials knowledge, test regimen development, team leadership, up to 10% travel.
ProE, Solidworks, NX, FEA
2w
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Principal Engineer
Chicago, Illinois, United States
$150k-$225k/yr OnsiteFull Time
10+ YOERequires 10–25 years of design and field experience, a bachelor's degree, Illinois professional licensure, AutoCAD, structural analysis and design experience, and strong communication skills. A master's degree and BIM experience are preferred.
AutoCAD, BIM
2w
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Principal Engineer - Gas Detection
Northbrook, Illinois, United States
$142k-$155k/yr HybridFull Time
5+ YOEBachelor’s degree in engineering, 5–10 years of gas and vapor detection experience, NFPA 72 knowledge, safety engineering expertise, technical writing, presentation, project management, and communication skills.
NFPA 72, ISO Standards, ULSE Standards, Certification Requirement Decisions (CRDs), Technical Guidance Documents (TGDs), Standardized Appendix Pages (SAPs), Follow-up Inspection Instructions (FUIIs)
3w
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Principal Engineer, R&D
Deerfield or Illinois or Chicago
$112k-$154k/yr HybridFull Time
5+ YOEBachelor's degree in engineering and 5+ years in product development; expertise in design documentation, manufacturing transfer, 3D CAD, prototyping, testing, and regulated design controls.
3D CAD, FDA, ISO, IEC, CAPA, DHF, TQM, ESPP, EAP
3w
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Sr Principal Engineer, Automation Projects
Round Lake, Illinois, United States
$128k-$176k/yr OnsiteFull Time
8+ YOEBachelor of Science in Engineering required (Mechanical preferred),8+ years engineering experience, SolidWorks experience, aseptic/cGMP manufacturing preferred, project leadership, domestic/international travel up to 20%.
SolidWorks
2mo
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Principal Engineer Process
Rolling Meadows, Illinois, United States
$98k-$148k/yr OnsiteFull Time
5+ YOEBachelor’s or Master’s in engineering with 3-5 years (MS: 3+ yrs) in opto-mechanical/EOIR; ability to obtain Secret clearance; US citizenship; 10% travel; on-site Rolling Meadows, IL.
1mo
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Principal/Sr. Principal Systems Engineer
Rolling Meadows, Illinois, United States
$109k-$204k/yr OnsiteFull Time
5+ YOESTEM degree with 5+ years (Principal) or 8+ years (Sr Principal) experience, proficiency in systems thinking, model-based systems engineering, simulation/mission modeling, and listed software/tools; U.S. citizenship and active government clearance required.
MATLAB, C, C++, CUDA, VHDL, OpenCL, SysML, Python, Cameo, Rhapsody, AFSIM, STK, BRAWLER, ATCOM, ONESAF, DOORS, ClearCase, ClearQuest
2mo
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Engineer, Principal
Naperville, Illinois, United States
$109k-$159k/yr OnsiteFull Time
7+ YOE7+ years of software architecture/engineering experience; cloud and DevOps focus; strong leadership in architecture decisions.
CSharp, Python, Angular, SQL, AWS, Azure, GCP, CI/CD tooling
1d
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Principal Engineer - Product Design
Mount Prospect or Illinois
$120k-$150k/yr HybridFull Time
Bachelor's degree or equivalent experience; extensive customer-centric product development experience; advanced SolidWorks or Creo 3D design proficiency; leadership across multidisciplinary global teams.
SolidWorks, Creo, CAD
2mo
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Engineer, Principal
Naperville, Illinois, United States
$109k-$159k/yr OnsiteFull Time
7+ YOE7+ years in software development; expertise in C#, Python, Angular, SQL; cloud platforms (AWS/Azure/GCP); architecture and platform engineering; CI/CD; bachelor’s degree preferred or equivalent coding education.
C#, Python, Angular, SQL, AWS, Azure, GCP, CI/CD, Version Control, Cloud Platforms
2mo
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Principal Engineer, Agentic Journey Engineering Lead
Chicago, Illinois, United States
HybridFull Time
12+ YOE5+ MgmtBachelor's degree in CS/AI/Data Science, 12+ years application engineering experience with 5+ years lead experience and 2+ years building production GenAI/agentic solutions; strong Python, C#, JavaScript skills and hands-on Microsoft Copilot Studio, Power Platform, Dynamics 365, Dataverse, Azure, and CI/CD experience.
Microsoft Copilot Studio (M365), Microsoft Power Apps, Microsoft Power Automate, Microsoft Power Platform connectors, Microsoft Dynamics 365, Microsoft Outlook, Microsoft Teams, Microsoft SharePoint, Dataverse, Power BI, PowerApps Component Framework (PCF), Adaptive Cards, Bot Framework, Azure, Azure DevOps, Azure Integration Services, Azure OpenAI, Semantic Kernel, Python, C#, JavaScript, Git, API Management, EIS Suite
3w
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Principal Engineer - Packaging Equipment
Omaha or Chicago or Denver
$109k-$159k/yr RemoteFull Time
7+ YOEBachelor's in Mechanical/Robotics/Packaging Engineering,7+ years food manufacturing packaging design,automation and project engineering experience,USDA/FDA-regulated environment experience,team leadership,automation/robotics expertise.
3mo
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Principal Controls Engineer (Team Lead)
Oak Creek, Wisconsin, United States
OnsiteFull Time
8+ YOE8+ years of progressive controls engineering experience in manufacturing; strong PLC/HMI, industrial networking, project leadership
Allen-Bradley PLC, Siemens PLC, HMI/SCADA, FactoryTalk View, Ignition, AutoCAD Electrical, EPLAN
4w
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Principal Engineer- Permits
Libertyville, Illinois, United States
$95k-$107k/yr OnsiteFull Time
6+ YOEBachelor's in Civil Engineering, Illinois PE license, minimum 6 years experience, valid driver's license, regulatory and program management skills, strong communication and problem-solving.
1mo
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Sr. Principal Engineer, R&D - E2E Complex Processing Project Delivery
Glenview or Warrendale
$121k-$151k/yr HybridFull Time
8+ YOEBachelor's in engineering required (MS/PhD preferred), minimum 8 years R&D/engineering experience in food, consumer goods or similar; experience with pilot trials, scale-up, CQV/FMEA/CPRA, project management and cross-functional execution.
MS Project, Smartsheet, Jira, Microsoft Excel, SAP
2mo
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Sr. Principal Engineer, R&D - E2E Complex Processing Project Delivery
Glenview or Warrendale
$121k-$151k/yr HybridFull Time
8+ YOEBachelor's in engineering required (MS/PhD preferred), 8+ years R&D/engineering experience in consumer goods/food/pharma, hands-on end-to-end processing project delivery, CQV/FMEA/CPRA experience, project tool and ERP proficiency.
CQV, FMEA, CPRA, Microsoft Project, Smartsheet, Jira, Microsoft Excel, SAP
2mo
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Principal Forward Deployed Engineer
Bellevue or Chicago or San Francisco or Toronto
$269k-$369k/yr RemoteFull Time
10+ YOE10+ years in production software with distributed systems and identity; expertise in OAuth 2.0/OIDC/SAML, agent security, fine-grained authorization; proven AI hands-on; strong customer-facing authority; independent, founder’s mindset.
OAuth, OIDC, SAML, SCIM, OPA, Cedar, OpenFGA, MCP, A2A, ISO/IEC 42001, EU AI Act
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