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Principal Engineer Jobs in Wallingford, WA

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Principal Engineer, Plant Design Integration System One

Bellevue, WA

Remote

$69–$116 / hour
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The ideal candidate will bring a broad nuclear engineering background, strong knowledge of NRC regulations, and the ability to lead cross-functional technical decisions affecting the overall plant design. Responsibilities: Support the development and maintenance of the Reactor Plant architecture and programs, ensuring integration of complex technical areas spanning design, analysis, licensing, and testing.

9 days ago

Principal Software Engineer Jobot

Seattle, WA

$175,000–$225,000 / year
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Principal TPM, Customer 360, Amazon Personalization Amazon.com Services LLC

Seattle, WA

Your mission will be to identify high-impact customer problems that can be uniquely addressed by AI, and to build scalable, reusable AI primitives that accelerate innovation across Amazon's diverse product ecosystem. You'll drive the delivery of AI-powered solutions, working closely with research scientists, engineers, and business units to translate cutting-edge AI capabilities into tangible customer benefits.

30+ days ago

Principal Engineer & Senior Principal Engineer, Distributed Systems, Distributed Systems Amazon.com Inc

Seattle, WA

That means making the calls that ripple across the entire infrastructure lifecycle: architecting distributed software that determines how efficiently we utilize billions in electrical capacity, designing supply chain automation that decides whether AWS can deliver capacity in weeks or months, driving security strategies that protect the world"s most targeted infrastructure from provisioning through decommissioning, and defining network architectures that connect it all at hyperscale. You"ll work across Infrastructure Services" full breadth of specializations - power utilization and capacity planning, supply chain automation and optimization, infrastructure security and fleet lifecycle management, and network engineering - bringing clarity to cross-cutting technical decisions that no single team can resolve alone.

24 days ago

Principal Engineer & Senior Principal Engineer, AWS Infrastructure Services Amazon.com Inc

Seattle, WA

Our services, including Amazon Route 53, AWS Direct Connect, Elastic Load Balancing, AWS PrivateLink, Elemental Media Services, AWS Interactive Video Service, Amazon GameLift, AWS Cloudfront, AWS Transit Gateway - take on systems challenges few teams anywhere must solve. Real-Time Media: Real-Time Media: Build the infrastructure for sub-second, bidirectional video and audio delivery at global scale, spanning interactive live streaming, AI-integrated experiences, real-time AI voice agents, and physical AI.

24 days ago

Principal Software Engineer, Data Platform — Data Trust & AI Context SoFi

Seattle, WA

Experience & Education: 15+ years of software or data engineering experience (or 13+ years with a Master’s degree) with a proven track record of designing, building, and operating distributed data platforms at enterprise scale. You will personally contribute code, prototypes, architecture, and operational improvements while setting technical direction across engineering, data, security, privacy, legal, risk, analytics, and product teams.

17 days ago

Principal and Senior Principal Engineer, AWS Compute and ML Services Amazon.com Inc

Seattle, WA

The problems here involve a level of scale that is unique among many axes: we enable a wide variety of hardware platforms, support dozens of geographies worldwide, land a large number of new servers every day, power a vast marketplace of AI models, and meet the security and commerce needs of the most diverse customer base in cloud computing. At the Senior Principal Engineer level, you will additionally: Set the long-term technical direction and multi-year engineering vision across AWS Compute and ML Services, influencing strategy at the VP and SVP level.

30+ days ago

Principal Electrical Engineer, Mixed-Signal & Compute Systems (OISL Payload) - TeraWave Blue Origin Enterprises LP

$249,235–$348,928.65 / year

and/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. You will own the architecture, design, analysis, and verification of hardware that combines low-voltage precision analog circuitry with high-performance digital compute, controls precision opto-mechanical assemblies, interfaces with the spacecraft bus GNC and SDN systems, and executes automated space CONOPS that form an OISL mesh network.

14 days ago

Principal Electrical Engineer, Satellites Starlink Space Exploration Technologies Corp

Redmond, WA

$190,000–$290,000 / year

2+ years of experience designing and implementing mixed-signal circuit boards from concept through production using processors, FPGAs, Ethernet, multi-GHz Serdes, DRAM interfaces (DDR4), I2C, SPI, operational amplifiers, analog to digital and digital to analog converters, and power supply components. Sub-teams include: Avionics: The backbone of Starlink satellites are the bus avionics systems which control the vehicle, convert and distribute kilowatts of power, route high-speed vehicle and user traffic, and connect satellites to each other via our state-of-the-art Space Lasers!

30+ days ago

Principal Engineer - Plant Design Integration Protingent

Bellevue, WA

Remote

$69–$115 / hour
Quick Apply

Research, develop, and implement design bases and design strategies in support of plant design and licensing activities from various sources that include risk-Informed, performance-based strategies and methodologies, safety analysis concepts, commercial and operational objectives, and stakeholder objectives. About Protingent: Protingent is an Award-Winning provider of top-tier Engineering and IT talent, trusted by companies at the forefront of innovation — from Software and Aerospace to AI, Clean Tech, Medical Devices, and Connected Technologies.

30+ days ago

Principal Engineer, I&C Design Change Control TerraPower LLC

Bellevue, WA

$168,316–$252,475 / year

TerraPower is seeking to hire highly motivated and forward-thinking professionals who are interested in focusing on advanced nuclear reactor research and development and influencing change within the nuclear power landscape and bringing forward the critical production of medical isotopes. Provide technical direction and oversight of supplier projects, working with the contract administrator to ensure delivery of data and other deliverables to meet TerraPower requirements, as well as coordination and technical reviews of deliverables.

30+ days ago

Principal Electrical Engineer Astronics Corporation

Kirkland, WA

$152,072–$242,920 / year

Astronics Advanced Electronic Systems (AES) is seeking a Principal Electrical Engineer with a strong track record of implementing advanced power conversion technologies into aerospace-grade power supply and power conversion products. This role requires extensive knowledge of power conversion technologies-including resonant converter topologies and digitally controlled power supplies-along with strong leadership, mentoring, and presentation skills.

30+ days ago

Lead Senior Principal Forward Deployed Engineer (10566) Extreme Networks

Seattle, Washington

Full time

You will remain deeply hands-on, working directly with customer architects, principal engineers, engineering leaders, and technical teams on novel and difficult problems spanning intelligent networking, agentic AI, automation, enterprise integrations, data, distributed systems, and cloud and on-premises infrastructure. As a Lead Senior Principal Forward Deployed Engineer, you will be a senior technical leader within the FDE organization, setting technical direction across Extreme's most complex customer engagements and shaping the architectures, engineering practices, and reusable capabilities that enable FDE to operate effectively at scale.

29 days ago

Lead Principal Electrical Engineer, GPU Systems Oracle Corp

Seattle, WA

$146,300–$306,400 / year

You will be expected to independently navigate complex GPU/CPU systems engineering challenges, provide technical direction, and guide engineering teams and external partners toward successful integration, validation, qualification, and production readiness. Oracle Hardware is seeking a highly experienced Lead Principal Electrical Engineer with expert GPU and CPU systems engineering knowledge to lead complex hardware development, integration, validation, and production introduction initiatives.

17 days ago

Principal Electrical Engineer – Power Electronics Talentry

Everett, Washington

A leading global aerospace electronics innovator is seeking a Principal Electrical Engineer to serve as the subject matter expert and technical lead for cutting-edge cabin power conversion systems. In this role, you will lead the architecture, design, and DO-160/airframe certification of next-generation aircraft in-seat power supplies and USB charging solutions, while spearheading forward-looking R&D.

30+ days ago

Principal Engineer - TeraWave RF and Optical Systems Blue Origin Enterprises LP

Redmond, WA

$230,773–$323,081.85 / year

and/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Direct the architecture of high-fidelity HITL frameworks that replicate orbital dynamics - delay/Doppler profiles, azimuth/elevation tracking, handovers, and real-time kinematics - using CATR/anechoic ranges, channel emulators, GNSS simulators, hexapods/positioners, and precision RF and optical reference instrumentation.

30+ days ago

Principal Engineer – TeraWave RF and Optical Systems Blue Origin

Redmond, Washington

$230,773–$323,081.85 / year

and/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Direct the architecture of high-fidelity HITL frameworks that replicate orbital dynamics — delay/Doppler profiles, azimuth/elevation tracking, handovers, and real-time kinematics — using CATR/anechoic ranges, channel emulators, GNSS simulators, hexapods/positioners, and precision RF and optical reference instrumentation.

30+ days ago

Principal Electrical Engineer - RF Helion

Everett, Washington

You will integrate plasma science with high-power electrical engineering to deliver reliable, scalable, and high-fidelity plasma and energy system measurements that directly inform performance optimization, generator commissioning, and future device development. Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward.

30+ days ago

Principal Silicon Design Verification Engineer Microsoft Corp

Redmond, WA

$142,800–$274,800 / year

Required Qualifications: Doctorate in Electrical Engineering, Computer Engineering, Computer Science, or related field AND 3+ years technical engineering experience OR Masters Degree in Electrical Engineering, Computer Engineering, Computer Science, or related field AND 6+ years technical engineering experience OR Bachelors Degree in Electrical Engineering, Computer Engineering, Computer Science, or related field AND 8+ years technical engineering experience OR equivalent experience. 10+ years of experience in pre-silicon validation with a proven track record of delivering high performance Network switches/accelerators, Central Processing Unit (CPU), Vector processors and Graphics Processing Unit (GPU's) or relevant experience.

30+ days ago

Principal Civil Engineer - Solar & Renewable Major Projects Puget Sound Energy Inc

Bellevue, WA

$124,600–$207,400 / year

This role will support this journey by providing technical due diligence, design review, and civil engineering expertise for the development of new assets (wind, solar, energy storage, and other technologies) to be added to PSE's generation portfolio. There are additional voluntary options of supplemental life insurance, accidental death and dismemberment insurance, flexible spending accounts for health care and dependent daycare, and an Employee assistance program (EAP).

17 days ago

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Principal Engineer Jobs in Wallingford, WA

Principal Engineer, Plant Design Integration System One

Principal Software Engineer Jobot

Principal TPM, Customer 360, Amazon Personalization Amazon.com Services LLC

Principal Engineer & Senior Principal Engineer, Distributed Systems, Distributed Systems Amazon.com Inc

Principal Engineer & Senior Principal Engineer, AWS Infrastructure Services Amazon.com Inc

Principal Software Engineer, Data Platform — Data Trust & AI Context SoFi

Principal and Senior Principal Engineer, AWS Compute and ML Services Amazon.com Inc

Principal Electrical Engineer, Mixed-Signal & Compute Systems (OISL Payload) - TeraWave Blue Origin Enterprises LP

Principal Electrical Engineer, Satellites Starlink Space Exploration Technologies Corp

Principal Engineer - Plant Design Integration Protingent

Principal Engineer, I&C Design Change Control TerraPower LLC

Principal Electrical Engineer Astronics Corporation

Lead Senior Principal Forward Deployed Engineer (10566) Extreme Networks

Lead Principal Electrical Engineer, GPU Systems Oracle Corp

Principal Electrical Engineer – Power Electronics Talentry

Principal Engineer - TeraWave RF and Optical Systems Blue Origin Enterprises LP

Principal Engineer – TeraWave RF and Optical Systems Blue Origin

Principal Electrical Engineer - RF Helion

Principal Silicon Design Verification Engineer Microsoft Corp

Principal Civil Engineer - Solar & Renewable Major Projects Puget Sound Energy Inc

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