28 principal engineer jobs at 15 companies in Dover, DE
3mo
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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
2mo
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Sr. Principal Software Engineer
Wilmington or Columbus
OnsiteFull Time
Extensive experience in system design, application development, testing, and operations; expert in one or more programming languages; cloud-native, scalable systems; strong leadership and communication.
Java, Python, C++, Cloud, Kubernetes, CI/CD
1mo
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Sr Principal Engineer Propulsion
Palm Beach Gardens or Elkton or Ronkonkoma
$129k-$194k/yr OnsiteFull Time
8+ YOERequires a STEM degree with significant design experience, ability to obtain Secret clearance (US citizenship required), proficiency with Siemens NX, travel up to 25%, and prior experience mentoring junior engineers.
Siemens NX, Siemens Teamcenter United Architecture
4w
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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%.
2w
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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.
3mo
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Sr. / Principal Hose Design Engineer
Stevensville, Maryland, United States
$116k-$156k/yr OnsiteFull Time
8+ YOEBachelor’s in Mechanical Engineering; 8+ years hose/design experience; knowledge of hydraulic/pneumatic/fuel/seawater hoses; MIL/NavSea/AS9100; travel.
MIL-SPEC, SAE, ASME, NAVSEA
1mo
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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
1mo
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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
1mo
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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.
3w
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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.
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
2mo
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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
1mo
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Sr Principal Inventory Optimization
Milford or Wilmslow or New Castle
$132k-$219k/yr RemoteFull Time
5+ YOEMinimum 5 years program/project management experience, BS in engineering/science/supply chain, proven cross‑functional leadership, strong analytics, change management, and communication skills.
1mo
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Sr Principal Inventory Optimization
Milford or Wilmslow or New Castle
RemoteFull Time
5+ YOE5+ years project/program management experience; BS in engineering, science, or supply chain required (master's preferred); experience leading cross-functional teams, analytics validation, change management, and delivering global implementations; travel up to 25-30%.
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