32 principal engineer jobs at 21 companies in Smyrna, DE
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Principal Engineer, Mechanical
Atlanta or Annapolis or Montgomery or Austin or Granbury or Fort Worth or Wharton or Alexander City or Perryman or Harrisburg
$151k-$168k/yr RemoteFull Time
10+ YOEBachelor's in engineering with 10 years experience; strong expertise in combustion turbines or steam turbines; leadership or senior-level credentials preferred.
Gas Turbine Technology, Engineering Analysis Tools
1mo
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Sr Principal Engineer Propulsion
Elkton, Maryland, United States
$136k-$204k/yr OnsiteFull Time
Bachelor's in Engineering (or higher) with relevant experience; ability to obtain a Secret clearance (US citizenship required); willingness to travel ~25%; experience with propulsion, systems engineering, and design practices preferred.
Siemens NX, Siemens Teamcenter United Architecture
2mo
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Principal Software Engineer, Field Engineering
Aberdeen Proving Ground, Maryland, United States
$160k-$220k/yr OnsiteFull Time
5+ YOE5+ years hands-on software engineering; active Secret clearance; backend Go/Java/Rust; DevSecOps; Kubernetes; Bash/Python; Army-domain knowledge; customer-facing; Security+ readiness; willing to relocate to APG.
Go, Java, Rust, Kubernetes, Helm, CI/CD, Infrastructure as Code, Bash, Python, RMF
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Principal Energy Solutions Engineer
Kennett Square, Pennsylvania, United States
$128k-$193k/yr OnsiteFull Time
Bachelor's in engineering or engineering technology required; expert knowledge of energy and distributed energy resource project development; front-end electrical design, cost estimating, stakeholder communication, and project execution experience; domestic travel 25-40%.
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Principal Product Integration Engineer
Newark, Delaware, United States
$130k-$188k/yr OnsiteFull Time
10+ YOEBachelor's degree in engineering,10+ years equipment and process development and integration experience,knowledge of DfX/DfM and NPI,ability to collaborate with global teams and travel 10-20%.
3w
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Sr. / Principal Welding Process Engineer
Stevensville, Maryland, United States
$116k-$156k/yr OnsiteFull Time
10+ YOEBachelor's in engineering, 10+ years welding engineering experience in compliance-driven manufacturing, expertise in welding metallurgy, procedure qualification, inspection methods, and AS9100/NAVSEA requirements.
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Sr. / Principal Welding Process Engineer
Stevensville, Maryland, United States
$116k-$156k/yr OnsiteFull Time
10+ YOEBachelor's in welding/materials/mechanical engineering,10+ years welding process development in compliance-driven manufacturing, welding metallurgy expertise, procedure and welder qualification experience, AS9100/NADCAP knowledge.
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Sr. Principal, RF Engineer
Sparks, Maryland, United States
$190k-$215k/yr OnsiteFull Time
13+ YOEBachelor's in EE (15+ years) or Graduate degree (13+ years) with extensive RF/microwave circuit and PCB design to 18+ GHz, leadership/mentorship experience, active Secret clearance (TS/SCI eligibility), and familiarity with Keysight Genesys, OrCAD, MATLAB, and PSpice.
Keysight Genesys, OrCAD, MATLAB, PSpice
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Principal Embedded Software Engineer
Newark or Marlborough
$139k-$232k/yr HybridFull Time
12+ YOEExtensive embedded systems experience (RTOS, low-level firmware, device drivers), expert C/C++ and assembly skills, hardware/software integration, leadership and mentoring experience, familiarity with communication protocols (SPI, I2C, UART, CAN) and regulated medical device environments.
FreeRTOS, QNX, Zephyr, C, C++, Assembly, SPI, I2C, UART, CAN, Git, Perforce, Microsoft Azure DevOps, SVN, DICOM, HL7
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Principal Energy Solutions Engineer
Kennett Square or Houston or Denver or Chicago or Boston or Raleigh or Atlanta or Phoenix or Pittsburgh or Minneapolis or Charlotte or Columbus
$128k-$193k/yr OnsiteFull Time
Expertise in energy and distributed energy resource project development, preliminary electrical design, cost estimation, technical problem solving, stakeholder communication, and project management.
solar PV, energy storage, natural gas generation, combined heat and power, renewable fuels, hydrogen solutions, integrated switchgear
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Water/Wastewater Engineer (Mid-to-Principal Level)
Wilmington, Delaware, United States
$125k-$175k/yr OnsiteFull Time
8+ YOEBachelor's in civil engineering required, PE license required, 8+ years engineering experience, proficiency with AutoCAD, Civil 3D, Microsoft Office, strong leadership and communication skills.
AutoCAD, Civil 3D, Microsoft Office
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Liquid Cooling Data Center Principal Engineer
Newark, Delaware, United States
$141k-$221k/yr OnsiteFull Time
5+ YOEBS in engineering or materials science, 5+ years in data center cooling (10+ preferred), knowledge of liquid cooling and data center operations, strong communication, project management, and ability to run lab experiments and field trials.
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Principal Engineer - Equipment Integration and Technical Services
Middletown, Delaware, United States
OnsiteFull Time
12+ YOEExtensive pharmaceutical equipment and equipment-to-facility integration experience, cGMP knowledge, 10+ years engineering experience, ability to lead technical decisions, troubleshoot complex issues, and mentor engineers.
1mo
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Principal Software Engineer - AI Engineer
Jersey City or Wilmington or Palo Alto
$204k-$285k/yr OnsiteFull Time
7+ YOE7+ years software engineering experience; strong Python and PyTorch/TensorFlow; experience with vector storage, agentic AI and LLM deployment, MLOps and CI/CD, cloud (AWS or Azure); leadership and responsible AI practices.
Python, PyTorch, TensorFlow, Vector storage systems, CI/CD, MLOps, AWS, Azure, LLM Suite
2mo
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Principal Software Engineer
Annapolis Junction, Maryland, United States
$215k-$250k/yr OnsiteFull Time
12+ YOETwelve years SWE experience; BS in CS; frontend React; Node.js/Rust; Python; Shell; Kubernetes; microservices; multi-site apps; cloud migration.
JavaScript, TypeScript, React, Node.js, Rust, Python, Shell, Kubernetes, Microservices, Cloud
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Principal Specialist - IT ETRM Systems Dev
Houston or Newtown Square or Dallas
OnsiteFull Time
10+ YOEBachelor's degree in IT or related field, 10+ years for the principal level, RightAngle support and development, SQL Server, T-SQL, SSIS, C#/.NET, commodity trading, and risk management experience.
RightAngle, SQL Server, T-SQL, SSIS, C#, .NET, Web services
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Principal Process Associate (Intelligent Automation Engineer)
McLean or Richmond or Riverwoods or Wilmington
$99k-$124k/yr OnsiteFull Time
2+ YOEBachelor's degree or military experience, 2+ years in process management, 2+ years with Git or GitHub, and preferred automation engineering and technology project delivery experience.
Git, GitHub, UiPath, Automation Anywhere, Blue Prism, Python, OCR, NLP, Generative AI, machine learning, artificial intelligence
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Principal Process Associate (Intelligent Automation Engineer)
McLean or Richmond or Riverwoods or Wilmington
$99k-$124k/yr OnsiteFull Time
2+ YOEBachelor’s degree or military experience; 2+ years in process management and Git or GitHub; preferred automation engineering, technology project delivery, and intelligent automation platform experience.
Git, GitHub, UiPath, Automation Anywhere, Blue Prism, Python, OCR, NLP
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Principal Industrial Water/Wastewater Consultant
Houston or Mobile or Riverside or Little Rock or Phoenix or Middletown or Wilmington or Augusta or Syracuse or San Antonio or Salt Lake City or Rochester or Richmond or Reno or Raleigh or Portland or Philadelphia or Omaha or Novi or New Orleans or Lexington or Lenexa or Lansing or Indianapolis or Wakefield or Virginia Beach
$125k-$187k/yr HybridFull Time
20+ YOE20+ years industrial water/wastewater experience; BS in engineering preferred; subject-matter expertise in industrial wastewater treatment; client-facing business development and proposal leadership; experience leading large capital projects.
1mo
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Principal Process Associate (Intelligent Automation Engineer)
McLean or Richmond or Wilmington or Riverwoods
$99k-$124k/yr OnsiteFull Time
2+ YOEBachelor's degree or military experience; 2+ years process management and Git/GitHub experience; experience with automation platforms (UiPath, Automation Anywhere, Blue Prism, Python), ML/AI integrations, and technology project delivery preferred.
Git, GitHub, UiPath, Automation Anywhere, Blue Prism, Python
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