221 principal engineer jobs at 92 companies in Folcroft, PA
1d
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Principal Engineer
Wilmington, Delaware, United States
$175k-$279k/yr OnsiteFull Time
7+ YOERequires 7+ years of engineering experience or equivalent through work, training, military experience, or education. Desired skills include architecture, software development, stakeholder collaboration, and leadership advising.
2w
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Principal Engineer, Platform Systems
Blue Bell or Boca Raton or Irving
$146k-$218k/yr HybridFull Time
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
2w
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Principal Engineer, Platform Systems
Blue Bell or Boca Raton or Irving
$146k-$218k/yr HybridFull Time
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
3mo
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Principal Transmission Engineer
Lansdale, Pennsylvania, United States
OnsiteFull Time
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
1w
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Principal BESS Engineer
Scottsdale or San Diego or San Francisco or Houston or Denver or Princeton
$140k-$195k/yr HybridFull Time
8+ YOERequires 8+ years in utility-scale BESS engineering, integration, development, and commissioning; knowledge of electrical, fire safety, interconnection, controls, and utility standards; Excel and Python skills.
Microsoft Excel, Python, TCP/IP, Modbus/TCP, Power Plant Controller, Energy Management Systems (EMS), Battery Management Systems (BMS), SCADA, UL, IEEE, National Electrical Code, NFPA, UL1973, UL9540/A
2mo
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Senior Principal Mechanical Engineer
Reading, Pennsylvania, United States
OnsiteFull Time
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
2mo
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Senior Principal Electrical Engineer
Reading or Charlotte or Kansas City
OnsiteFull Time
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
2mo
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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 Engineer - Stormwater & Flood Risk
Iselin or Philadelphia
HybridFull Time
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
1w
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Principal Engineer - Product Design
Oldham or Malvern or Mexico or Japan or Switzerland or Germany or Sweden or Malta
HybridFull Time
Bachelor's degree or equivalent experience; extensive customer-centric product development experience; advanced SolidWorks or Creo proficiency; leadership across multidisciplinary global teams.
SolidWorks, Creo, Computer-Aided Design (CAD), Engineering Development Process (EDP), UX, UI
1w
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Principal Engineer, Software Engineering - eCommerce Applications
Conshohocken or Delaware or New Jersey
$111k-$221k/yr RemoteFull Time
10+ YOEBachelor's degree and 10+ years in software engineering, including 3+ years in a principal, staff, lead, or equivalent role. Requires enterprise eCommerce experience and proficiency with modern architectures, programming, cloud, security, and DevSecOps.
Microservices, RESTful APIs, Java, C#, JavaScript, TypeScript, Python, Azure, AWS, Google Cloud, CI/CD, DevSecOps, Adobe Commerce, Magento, Salesforce Commerce Cloud, SAP Commerce Cloud, Shopify Plus, Adobe Experience Manager, Sitecore, Azure API Management, Okta, Azure AD, Auth0, Kubernetes
2d
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Chief Engineer/Principal Software Engineer
Aurora or Ypsilanti or King of Prussia
$115k-$252k/yr OnsiteFull Time
10+ YOE35+ MgmtActive TS/SCI clearance, bachelor's degree in computer science or related field, 10+ years of software engineering experience, and leadership of large engineering teams in classified environments.
AWS, Kubernetes, Docker, CI/CD, DevOps, Continuous Delivery, infrastructure-as-code, Agile, Technical Exchange Meetings (TEMs), Software Development Life Cycle (SDLC)
2d
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Chief Engineer/Principal Software Engineer
Aurora or Ypsilanti or King of Prussia
$115k-$252k/yr OnsiteFull Time
10+ YOEActive TS/SCI clearance, bachelor's degree in computer science or related field, 10+ years of software engineering experience, large-scale team leadership, AWS, data engineering, distributed systems, Kubernetes, Agile, and SDLC expertise.
AWS, Kubernetes, CI/CD, DevOps, Docker, Microsoft?
3d
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Principal Engineer - Bioprocess Clinical Manufacturing Technology - FSP
West Point, Pennsylvania, United States
OnsiteFull Time
Bachelor's degree in biological sciences, engineering, or equivalent; GMP pharmaceutical or biotech manufacturing experience; RLIMS2 and SWMS experience; technical writing and audit coordination expertise.
RLIMS2, SWMS, Electronic document management systems, Learning management system, GMP, SOPs, ALCOA+
1mo
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Engineer 2A/Engineer 3B/Principal Engineer
Kennett Square or Baltimore
$93k-$168k/yr OnsiteFull Time
2+ YOEBachelor's degree in engineering and 2+ years related experience (higher levels require 5–10 years); maintain access and medical requirements; preferred leadership and advanced degrees for senior/principal roles.
1mo
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Principal Engineer, Architecture & Compound Engineering (US)
Mount Laurel, New Jersey, United States
$149k-$223k/yr OnsiteFull Time
15+ YOEBachelor's or graduate degree (or 15+ years relevant experience). Deep technical expertise in enterprise platforms, platform-as-product thinking, architecture standards, and ability to provide strategic guidance to senior leadership.
3mo
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Photonics Transceiver Engineer, Senior / Principal
Hamilton Township, New Jersey, United States
$105k-$160k/yr OnsiteFull Time
10+ YOEBachelor’s degree in electrical engineering or physics; 10+ years in photonics design; senior/principal level depending on experience.
VCSELs, photodiodes, laser drivers, TIA, amplifiers, firmware, BERTs, DCAs, optical switches, attenuators, power meters, thermal chambers, SolidWorks, Microsoft Office
3mo
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Principal AI & Automation Engineer
Philadelphia, Pennsylvania, United States
HybridFull Time
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
1mo
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Senior Principal Engineer
Dublin or Philadelphia
HybridFull Time
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
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
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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