1,112 Results for

Principal Engineer Jobs in Seattle, WA

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Principal Engineer, Plant Design Integration System One

Bellevue, WA

Remote

$69–$116 / hour
Quick Apply

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.

5 days ago

Principal Engineer, Seismic CSA Integration and Oversight System One

Bellevue, WA

Remote

$69–$115 / hour
Quick Apply

Perform technical reviews of work products, including seismic analysis, soil-structure interaction (SSI) analysis, and probabilistic assessments. Support the development of plant level requirements and strategies related to seismic design and licensing activities for advanced nuclear reactor projects.

5 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.

4 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.

4 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.

20 days ago

Principal Engineer, Nexus Capacity Engineer Google LLC

Seattle, WA

Integrate cutting-edge AI/ML, operations research, and advanced mathematical optimization into capacity planning workflows to compress capacity cycles, eliminate stranded capacity, and maximize data center utilization. Ability to influence and lead without direct authority, building strong cross-organizational relationships across disparate teams (e.g., Hardware, Software, Supply Chain, and Product Management).

7 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, GDC Storage, Google Cloud Google LLC

Seattle, WA

With Google Distributed Cloud (GDC), we are creating the industry's leading private and hybrid cloud offering that brings our customers Google Cloud's AI-led Services and Infrastructure on an on-premise platform that is simple, secure and scalable. You will directly influence a team of software engineers, work closely with product management and engineering managers to define and execute on the storage for GDC roadmap for public sector, retail, and telecom markets.

7 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 Engineer, SCADA Engineering (BESS) Invenergy LLC

Seattle, WA

$155,000–$180,000 / year

This role is accountable for defining and documenting control strategies and data interfaces between substation devices, generation resources, data centers, remote operation centers, and external entities, and for driving reliable data connectivity and control readiness from design, commissioning, and turnover. Monitor construction progress remotely and via on site visits, support resolution of field issues, attend in person meetings with stakeholders, and provide on-site programming and field support during commissioning when required.

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.

15 days ago

Principal Engineer – TeraWave RF and Optical Systems Blue Origin

Redmond, Washington

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.

16 days ago

Principal Engineer, Spacecraft Test Development The Talent Mine

Seattle, WA

$185,000–$210,000 / year
Quick Apply

The position works cross-functionally with Systems Engineering, Production AI&T, and all spacecraft subsystem teams (EPS, ADCS, Communications, C&DH, Flight Software, etc.) to meld verification requirements with real-world system performance variability and constraints into robust, executable test campaigns that minimize test-to-test variability and risk for human error. The Satellite Test Development Engineer is responsible for transitioning satellite tests from engineer-driven ‘new product’ tests to routine, highly automated, efficient test processes that ensure every satellite off the production line is repeatably and robustly tested before shipping and launch.

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.

26 days ago

Principal Engineer, Data Center Deployment Ops DigitalOcean LLC

Seattle, WA

$184,000–$231,000 / year

What You'll Be Doing: Defining and owning DigitalOcean''s reference architectures for next-generation Data Center environments, navigating shifts in technology, networking topologies, and AI/ML hardware roadmaps to keep facility designs future-proofed. Architecting end-to-end power topologies with vendor teams to support diverse hardware across medium to ultra-high-density rack deployments, moving from 415VAC to 800VDC.

30+ days ago

Principal Engineer, Data Center Architect DigitalOcean

Seattle, WA

$184,000–$231,000 / year

Defining and owning DigitalOcean's reference architectures for next-generation Data Center environments, navigating shifts in technology, networking topologies, and AI/ML hardware roadmaps to keep facility designs future-proofed. Architecting end-to-end power topologies with vendor teams to support diverse hardware across medium to ultra-high-density rack deployments, moving from 415VAC to 800VDC.

30+ days ago

Principal Engineer, I&C Design TerraPower

Bellevue, WA

$148,722–$193,146 / 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. Experience in providing 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.

15 days ago

Principal Electrical Engineer ALTEN Technology USA

Seattle, WA

$150,000–$170,000 / year

We're ALTEN Technology USA, an engineering company helping clients bring groundbreaking ideas to life—from advancing space exploration and life-saving medical devices to building autonomous electric vehicles. When you join ALTEN Technology USA, you'll collaborate on some of the world's toughest engineering challenges, supported by mentorship, career growth opportunities, and comprehensive benefits.

30+ days ago

Principal Electrical Engineer ALTEN Technology

Mukilteo, Washington

$150,000–$170,000 / year

We’re ALTEN Technology USA, an engineering company helping clients bring groundbreaking ideas to life—from advancing space exploration and life-saving medical devices to building autonomous electric vehicles. When you join ALTEN Technology USA, you’ll collaborate on some of the world’s toughest engineering challenges, supported by mentorship, career growth opportunities, and comprehensive benefits.

25 days ago

Senior Principal Engineer, Central Ops & Systems Docker Inc

Seattle, WA

Remote

$219,000–$352,000 / year

As Senior Principal Engineer, you will establish strategic technical plans that span the company systems/data architecture and the end-to-end employee experience, make critical architectural decisions that affect Dockers entire internal systems portfolio, and drive technical execution of cross-company initiatives that directly enable every Dockhand. Youll work at the technical intersection of AI, platform infrastructure, developer SDLC, corporate systems, and Docker products, ensuring all systems work together seamlessly to support Dockers most precious resources: our employees.

30+ days ago

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Principal Engineer Jobs in Seattle, WA

Principal Engineer, Plant Design Integration System One

Principal Engineer, Seismic CSA Integration and Oversight System One

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

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

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

Principal Engineer, Nexus Capacity Engineer Google LLC

Principal Engineer - Plant Design Integration Protingent

Principal Engineer, GDC Storage, Google Cloud Google LLC

Principal Engineer, I&C Design Change Control TerraPower LLC

Principal Engineer, SCADA Engineering (BESS) Invenergy LLC

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

Principal Engineer – TeraWave RF and Optical Systems Blue Origin

Principal Engineer, Spacecraft Test Development The Talent Mine

Principal Electrical Engineer Astronics Corporation

Principal Engineer, Data Center Deployment Ops DigitalOcean LLC

Principal Engineer, Data Center Architect DigitalOcean

Principal Engineer, I&C Design TerraPower

Principal Electrical Engineer ALTEN Technology USA

Principal Electrical Engineer ALTEN Technology

Senior Principal Engineer, Central Ops & Systems Docker Inc

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