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160 principal engineer jobs at 67 companies in Wilmington, 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
Constellation Energy
Constellation EnergyNASDAQ: CEG: Produces carbon-free electricity and supplies energy to customers.
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
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1w
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Principal Engineer, Platform Systems
Blue Bell or Boca Raton or Irving
$146k-$218k/yr HybridFull Time
ADT
ADTNYSE: ADT: Provides residential and commercial security and smart home services.
10+ YOEBachelor's degree or equivalent experience and 10+ years of software engineering experience. Requires distributed systems, cloud-native architecture, cross-team technical leadership, direct implementation, and communication expertise.
Java, Spring, TypeScript, JavaScript, Kotlin, Swift, Python, C, C++, AWS, GCP, Docker, Kubernetes, CI/CD
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1w
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Principal Engineer, Platform Systems
Blue Bell or Boca Raton or Irving
$146k-$218k/yr HybridFull Time
ADT
ADTNYSE: ADT: Provides electronic security, automation, and alarm monitoring services.
10+ YOEBachelor's degree or equivalent experience and 10+ years of software engineering experience. Requires distributed systems, cloud-native architecture, cross-team technical leadership, hands-on implementation, communication, and mentoring expertise.
Java, Spring, TypeScript, JavaScript, Kotlin, Swift, Python, C, C++, AWS, GCP, Docker, Kubernetes
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3mo
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Principal Process Engineer
Collegeville, Pennsylvania, United States
$110k-$140k/yr OnsiteFull Time
PerkinElmer
PerkinElmer: Provides analytical instruments and laboratory services for scientific industries.
PhD or MS/BS with relevant years in pharmaceutical sciences or chemical engineering; lyophilization expertise; process development; tech transfer; strong communication and safety mindset.
Lyophilization, Process Development, PAT, Modelling Software, Laboratory Equipment, Microsoft Office
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Principal Transmission Engineer
Lansdale, Pennsylvania, United States
OnsiteFull Time
Westwood Professional Services
Westwood Professional Services: Engineering and design services for infrastructure and energy projects.
10+ YOESupervisor of technical staff with 10+ years in power transmission design; ABET-accredited degree in Civil/Structural or Electrical Engineering; PE licensure; proficient in industry software.
PLS-CADD, MFAD, AutoCAD, Microsoft Office
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Senior Principal Mechanical Engineer
Reading, Pennsylvania, United States
OnsiteFull Time
Worley
WorleyASX: WOR: Provides engineering and project delivery services for energy and resources.
Extensive mechanical engineering experience with project leadership, cost estimating and proposal writing; competent with engineering software and MS Office; bachelor’s in mechanical engineering required; PE preferred.
Microsoft Office
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2mo
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Senior Principal Electrical Engineer
Reading or Charlotte or Kansas City
OnsiteFull Time
Worley
WorleyAustralian Securities Exchange: WOR: Global professional services for energy, chemicals, and resources sectors.
Extensive electrical engineering experience with project leadership, cost estimating, technical consulting, knowledge of standards, competency with electrical engineering software and Microsoft Office; BS/MS in engineering required; PE preferred.
Microsoft Office Suite
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10h
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Principal Engineer, Cloud & Data Platform
Mount Laurel, New Jersey, United States
RemoteFull Time
Chorus Healthcare, Inc.
Chorus Healthcare, Inc.: Delivering precision pharmacy services and advanced medication management.
15+ YOE15+ years in software, data, or infrastructure engineering; deep AWS, working Azure, Databricks, Python, SQL, infrastructure-as-code, CI/CD, APIs, and healthcare data experience preferred.
Amazon Web Services (AWS), Microsoft Azure, AWS CDK, Bicep, Terraform, Databricks, Apache Spark, Delta Lake, Unity Catalog, Delta Live Tables, Python, SQL, Git, HL7 FHIR, SMART on FHIR, OAuth 2.0, HL7 v2, NCPDP, EHR, IAM, CI/CD
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1mo
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Sr Principal Engineer Propulsion
Elkton, Maryland, United States
$136k-$204k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
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
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Principal Engineer - Stormwater & Flood Risk
Iselin or Philadelphia
HybridFull Time
Mott MacDonald
Mott MacDonald: Global engineering and management consultancy for infrastructure and development.
15+ YOEPE (NJ required), CFM preferred, 15+ years in stormwater/CSO/flood risk engineering, advanced H&H modeling experience (HEC-RAS, HEC-HMS, XP-SWMM, InfoWorks ICM, SWMM), strong permitting and client-facing skills, mentoring ability.
HEC-RAS, HEC-HMS, XP-SWMM, InfoWorks ICM, SWMM
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Principal AI & Automation Engineer
Philadelphia, Pennsylvania, United States
HybridFull Time
Comcast
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
10+ YOELead QA with AI-driven test automation, cloud-native, microservices; CI/CD; Python/Go; observability; network/test tools.
Python, Go, Shell scripting, Linux, IXIA, ByteBlower, Git, Jenkins, GitLab CI, Kubernetes, Docker
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Senior Principal Engineer
Dublin or Philadelphia
HybridFull Time
Bentley Systems
Bentley SystemsNASDAQ: BSY: Software for designing, building, and operating global infrastructure.
12+ YOE12+ years building large-scale API platform architecture; expertise in API gateways, OAuth/OIDC, metering/billing, cloud-native distributed systems, and strong coding plus cross-team communication skills.
Cesium, Seequent EVO, iTwin, API gateway, OAuth 2.0, OIDC, IMS OAuth, event streaming, ERP, MCP
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Principal Research Engineer
Malvern, Pennsylvania, United States
OnsiteFull Time
Crane NXT
Crane NXTNYSE: CXT: Provides industrial technology for secure payments and product authentication.
5+ YOEBachelor's in Electrical Engineering or Computer Science; 5 years in analog/digital electronics; embedded systems, PCB design, Matlab/Simulink, IAR; prototype and test hardware and firmware.
Embedded software (IAR), MATLAB, Simulink, PCB design, Soldering, Schematic design
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2mo
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Sr Principal Engineer Tunnels SME - 90333627 - Philadelphia (Philadelphia, PA, US, 19104)
Philadelphia, Pennsylvania, United States
$149k-$194k/yr OnsiteFull Time
Amtrak
Amtrak: Operates America's national intercity passenger railroad system.
9+ YOEBachelor's degree or equivalent, 9+ years relevant experience, SME in tunnel design/construction and geotechnical engineering, experience with TBM/SEM and multiple delivery methods, PE/PG preferred, proficiency with Microsoft Office, Primavera/Microsoft Project.
Microsoft Office, Primavera, Microsoft Project
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3mo
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Principal Noise Consultant
Cambridge or Philadelphia or Fairfax or Los Angeles or Chicago or Houston or Charlottesville or Huntsville
$115k-$145k/yr HybridFull Time
Acentech
Acentech: Provides acoustics, vibration, and audiovisual consulting for buildings.
5+ YOESenior- to principal-level acoustics consultant with 5+ years in environmental noise; degree in engineering/science with acoustics/vibration focus; strong project management, communication, and field/measurement experience.
CadnaA
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1w
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Principal Substation Engineer
Chicago or Phoenix or Charlotte or St. Louis or Marlton or Roanoke or Monroeville or Boise or Kansas City or Columbus or Cleveland or Cincinnati or Madison or Ann Arbor or Kalamazoo or Salt Lake City or United States
$147k-$175k/yr RemoteFull Time
GFT (Gannett Fleming)
GFT (Gannett Fleming): Provides infrastructure engineering, design, and construction management services.
15+ YOEBachelor's in Electrical Engineering, professional engineer license, and 15+ years in power and utility design, engineering, and project management; high-voltage substation experience required.
Microsoft Project, AutoCAD, MicroStation, Inventor
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1w
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Principal Hardware Engineer
Newtown, Pennsylvania, United States
$145k-$165k/yr OnsiteFull Time
Curtiss-Wright
Curtiss-WrightNYSE: CW: Engineers and manufactures critical components for aerospace and defense.
15+ YOEBachelor’s or master’s degree in engineering and 15–20+ years of progressive hardware engineering experience, with expertise in electronic, mechanical, optical, or DSP systems and technical leadership.
FPGA, microcontroller, DSP
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1mo
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Principal Wastewater Engineer
Middletown or Columbus or Mount Laurel Township or Philadelphia or Bloomfield or King of Prussia
$105k-$135k/yr HybridFull Time
T&M Associates
T&M Associates: Provides engineering, environmental, and technical services for infrastructure.
8+ YOEABET-accredited bachelor's in civil or environmental engineering, PE license required, 8+ years water/wastewater engineering experience, regulatory knowledge, client coordination, process modeling and hydraulic calculations, willingness to travel up to 25%.
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2mo
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Principal Software Engineer
Philadelphia, Pennsylvania, United States
$115k-$124k/yr OnsiteFull Time
City of Philadelphia
City of Philadelphia: Provides municipal services and governance to the city of Philadelphia.
3+ YOEBachelor’s degree or equivalent; 3+ years in .NET/C# web development; SQL and database experience; public sector/government experience a plus.
C#, SQL, SQL Server, Oracle, PostgreSQL, MySQL, .NET, FAST/GenTax
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1mo
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Special Projects Group Principal Geotechnical Engineer - Transportation
Mount Laurel, New Jersey, United States
$125k-$200k/yr OnsiteFull Time
ECS
ECS: Provides geotechnical, environmental and construction materials engineering services.
12+ YOE12+ years experience, BS/MS in Civil/Geological Engineering or Geology, PE or PG required in working states, Associate Principal designation or equivalent, driver’s license, geotechnical software proficiency, business development and leadership experience.
ALF
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