Principal Engineer, Seismic CSA Integration and Oversight System OnePrincipal Engineer, Seismic CSA Integration and OversightBellevue, WARemote$69–$115 / hourPerform 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.
SR. AI SECURITY ENGINEER Widenet ConsultingSR. AI SECURITY ENGINEERSeattle, WashingtonContractorDemonstrated understanding of LLM and agent attack surface: prompt injection, data leakage through model output, insecure tool use, supply chain risk in models and dependencies. – Assess and mitigate agentic risk classes including excessive agency, capability chaining, tool and memory poisoning, and unsafe autonomous action.
Principal Recruiter, Principal Engineer Recruiting, PE Recruiting Amazon.com IncPrincipal Recruiter, Principal Engineer Recruiting, PE RecruitingSeattle, WAAs a client lead recruiter, you"ll have the unique opportunity to impact leadership teams across Amazon"s diverse technology landscape, building relationships with Directors and VPs while shaping the future of Amazon"s senior engineering community. Mid-day might involve leading a client update meeting where you present market analysis and candidate pipeline progress, followed by conducting in-depth technical assessments with potential candidates.
Principal Electrical Engineer (2026-065) AstronicsPrincipal Electrical Engineer (2026-065)Kirkland, WashingtonAstronics 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.
Principal Electrical Engineer (2026-065) (WA, Kirkland) Astronics CorpPrincipal Electrical Engineer (2026-065) (WA, Kirkland)Kirkland, WA$152,072–$242,920 / yearAstronics 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.
Principal Electrical Engineer - RF Helion Energy IncPrincipal Electrical Engineer - RFEverett, WAYou 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. Design, test, and troubleshoot high-voltage electrical systems including power delivery to pulsed magnets, energy recovery circuits, and internal power networks used during pulsed generator operation.
Principal Software Engineer / Principal AI Engineer - Commerce Platforms Microsoft CorpPrincipal Software Engineer / Principal AI Engineer - Commerce PlatformsRedmond, WA$142,800–$274,800 / yearExperience building or leading AI-powered solutions, production AI applications, LLM-enabled experiences, agentic workflows, intelligent automation, applied machine learning capabilities, or AI-assisted engineering practices. You will partner across engineering, product, research, data, security, compliance, and business teams to solve ambiguous technical challenges, deliver durable platform capabilities, and create business-critical impact at global scale.
Principal Electrical Engineer Helion Energy IncPrincipal Electrical EngineerEverett, WAYour work will focus on high-power electrical systems including energy delivery to pulsed magnetics, energy recovery systems, internal redistribution networks, and grid-tie infrastructure. Since Helions founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward.
Principal Engineer, Data Center Architect DigitalOceanPrincipal Engineer, Data Center ArchitectSeattle, WA$184,000–$231,000 / yearWhat 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.
Principal Engineer, Data Center Deployment Ops DigitalOcean LLCPrincipal Engineer, Data Center Deployment OpsSeattle, WA$184,000–$231,000 / yearWhat 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.
Principal Engineer - Transmission and Asset Integration Puget Sound Energy IncPrincipal Engineer - Transmission and Asset IntegrationBellevue, WA$124,600–$207,400 / yearThis position serves as a principal engineering and technical expert within PSE's Energy Supply Merchant organization, providing technical leadership and subject matter expertise for merchant transmission portfolio management, transmission service strategy, asset integration, resource delivery, and regional transmission matters. The Principal Engineer leads complex technical, tariff, commercial, and operational analyses to support reliable and cost-effective delivery of PSE's generation resources, power purchase agreements, tolling agreements, capacity agreements, and other portfolio resources.
Senior Principal Engineer, Central Ops & Systems Docker IncSenior Principal Engineer, Central Ops & SystemsSeattle, WARemote$219,000–$352,000 / yearAs 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.
Principal Engineer - Transmission And Asset Integration Puget Sound EnergyPrincipal Engineer - Transmission And Asset IntegrationBellevue, WA$124,600–$207,400 / yearThis position serves as a principal engineering and technical expert within PSE's Energy Supply Merchant organization, providing technical leadership and subject matter expertise for merchant transmission portfolio management, transmission service strategy, asset integration, resource delivery, and regional transmission matters. The Principal Engineer leads complex technical, tariff, commercial, and operational analyses to support reliable and cost-effective delivery of PSE's generation resources, power purchase agreements, tolling agreements, capacity agreements, and other portfolio resources.
Principal Engineer - Product Integrity Blue Origin Enterprises LPPrincipal Engineer - Product IntegritySeattle, WA$157,059–$219,882.60 / yearand/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 (CDL drivers only), vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. You will solve unprecedented challenges in ensuring hardware survives the rigors of launch, orbit, and long-duration deployment-pioneering physics-of-failure methodologies, predictive reliability frameworks, and AI-driven engineering approaches that redefine how high-stakes hardware is designed, qualified, and validated.
NewPrincipal Engineer, Cluster Orchestration CoreWeavePrincipal Engineer, Cluster OrchestrationBellevue, WA / Sunnyvale$206,000–$303,000 / yearTo conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157, or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency. As a Principal Engineer in cluster orchestration, you will be responsible for systems that directly determine how efficiently GPUs are used, how reliably large models run, and how quickly customers can move from research to production.
Principal Engineer - TeraWave RF and Optical Systems Blue Origin Enterprises LPPrincipal Engineer - TeraWave RF and Optical SystemsSeattle, WA$332,694–$465,771.60 / yearand/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.
Principal Engineer, Spacecraft Test Development The Talent MinePrincipal Engineer, Spacecraft Test DevelopmentSeattle, WA$185,000–$210,000 / yearThe 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.
Principal Engineer - Plant Design Integration ProtingentPrincipal Engineer - Plant Design IntegrationBellevue, WARemote$69–$115 / hourResearch, 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.
Principal Engineer, SCADA Engineering (BESS) Invenergy LLCPrincipal Engineer, SCADA Engineering (BESS)Seattle, WA$155,000–$180,000 / yearThis 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.
Principal Electrical Engineer - Planning & Coordination Microsoft CorpPrincipal Electrical Engineer - Planning & CoordinationRedmond, WA$142,800–$274,800 / yearPartner across qubit design, electrical engineering, mechanical engineering, systems engineering, reliability, sourcing, supply chain, fabrication partners, contract manufacturers, system integrators, and leadership teams to align deliverables, resolve blockers, and support high-quality execution. Communicate clearly across technical and executive audiences, synthesize engineering and supplier input into decision frameworks, influence outcomes without direct authority, and mentor junior engineering planning coordinators and engineers while reinforcing Microsoft's values and inclusive culture.