Power Electronics Engineer, Amazon Leo Power Team Amazon Kuiper Manufacturing Enterprises LLCPower Electronics Engineer, Amazon Leo Power TeamRedmond, WAIntegrate validated power converter blocks into customer board designs, owning schematic integration and working with the power integrity team on stackup, routing, and decoupling strategy. The Power Electronics Design team owns power across the satellite, from bus architecture and converter design through component qualification and end-to-end design lifecycle support.
NewSenior Mechanical Design Engineer System OneSenior Mechanical Design EngineerBellevue, WA$52–$85 / hourCoordinate and utilize inputs and requirements from Engineering and Project teams to produce equipment and components design solutions, including drawings, models, and specifications. Support continuous learning and application of nuclear industry best practices to maintain the highest quality of engineering design and proactively identify process change/enhancement opportunities.
NewSenior Safety Methods Engineer System OneSenior Safety Methods EngineerBellevue, WA$37–$74 / hourThe engineer also builds automated, repeatable workflows, documents methodologies and assumptions, collaborates across disciplines to align methods with design and safety analysis, and follows SQA/NQA-1 practices to ensure traceability, configuration control, and reproducibility. Responsibilities include running steady-state and transient analyses to assess model performance and fidelity needs, integrating closure models and empirical correlations into existing frameworks, and identifying gaps through sensitivity studies to drive method improvements.
NewSenior Welding Engineer System OneSenior Welding EngineerBellevue, WA$56–$95 / hourSystem One is seeking a Senior Welding Engineer for a yearlong contract role to work as part of a high-functioning team of engineers focused on materials processing, supply chain development and supplier qualification for next generation material and components for sodium-cooled fast reactors. Oversee test programs for qualification of welds, including mechanical properties, burst testing, thermal creep, creep-fatigue, neutron irradiation, thermal aging, and sodium exposure.
NewPlant Integration Engineer – Steam & Power Systems System OnePlant Integration Engineer – Steam & Power SystemsBellevue, WARemote$56–$96 / hourMinimum 10 years of experience in nuclear power plant design, commercial power generation, power plant modifications, oil & gas, refining, chemical processing, or large industrial process facilities. Experience with: Steam cycle systems, Heat exchangers, Thermal energy storage, Molten salt systems, Balance of Plant (BOP), Energy Island design, Nuclear Island integration.
NewSenior Manager, Bus Mechanical Engineering, Amazon Leo Amazon Kuiper Manufacturing Enterprises LLCSenior Manager, Bus Mechanical Engineering, Amazon LeoRedmond, WAYour day may include reviewing cross-discipline tradeoffs with electrical and thermal peers, aligning managers on priorities across multiple vehicle configurations, and resolving integration or production issues that span teams. This role leads multiple mechanical verticals, including bus structures, avionics mechanical, harness engineering, launch support, and vehicle design, and ensures they operate as an integrated system.
Primary Heat Transfer (PHT) Engineer, Systems System OnePrimary Heat Transfer (PHT) Engineer, SystemsBellevue, WARemote$56–$95 / hourSystem One is seeking a Contractor to provide the following services(PHT) System Design Engineer who is focused on the primary sodium heat transport system design as part of the Natrium sodium fast reactor. The successful candidate demonstrates in depth knowledge of fluid system design including knowledge of centrifugal pump and tube & shell heat exchanger operation.
Senior Structural Analyst System OneSenior Structural AnalystBellevue, WARemote$56–$95 / hourThis role focuses on performing structural and finite element analyses (FEA) of reactor vessels, reactor internals, containment structures, and nuclear island components operating in high-temperature and radiation environments. The ideal candidate will have extensive experience with structural mechanics, ANSYS, ASME design codes, and engineering analysis for complex mechanical systems.
Sr. Staff Thermal Engineer - Aircraft Avionics & Thermal Systems (R3930) Shield AISr. Staff Thermal Engineer - Aircraft Avionics & Thermal Systems (R3930)Seattle, WA$200,000–$310,000 / yearThis role is best suited for an engineer who thrives on first-principles problem solving, is comfortable with ambiguous, open-ended challenges, and can bridge technical disciplines with strong communication and collaboration skills and the ability to simplify and communicate complex problems. Staff Thermal Engineer at Shield AI, you will lead the design, analysis, and integration of aircraft avionics thermal management systems, with opportunities to flex into aircraft-level thermal and fluid systems.
Mechanical/Thermal Engineer magniXMechanical/Thermal EngineerEverett, WA$120,000–$165,000 / yearAbout magniX: Based in the beautiful Pacific Northwest, magniX builds solutions for the electric age, applying its aerospace-grade batteries, power electronics, power distribution, electric engines, and software to mission-critical applications across data centers, energy storage, defense, mobility, space, and aerospace. Built on an 800-volt architecture, magniX technology delivers industry-leading energy density, cycle life, and safety, and magniX electric engines have powered more than 200 flights across six different airframes, where the company remains the industry leader.
Power Electronics - Thermal Engineer Senior Staff Shield AIPower Electronics - Thermal Engineer Senior StaffSeattle, WA$173,080–$259,620 / yearThis role is best suited for an engineer who thrives on first-principles problem solving, is comfortable with ambiguous, open-ended challenges, and can bridge technical disciplines with strong communication and collaboration skills and the ability to simplify and communicate complex problems. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information.
Power Electronics - Thermal Engineer I (R4842) Shield AIPower Electronics - Thermal Engineer I (R4842)Seattle, WA$91,000–$130,000 / yearWe may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. With offices and facilities across the U.S., Europe, the Middle East, and Asia-Pacific, Shield AI's technology actively supports operations worldwide.
Thermal Engineer, Satellites Starlink Space Exploration Technologies CorpThermal Engineer, Satellites StarlinkRedmond, WA$100,000–$115,000 / yearITAR REQUIREMENTS: To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. You may also be eligible for long-term incentives, in the form of company stock, stock options, or long-term cash awards, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan.
Engineer II, Thermal Design And Analysis (R4934) Shield AIEngineer II, Thermal Design And Analysis (R4934)Seattle, WA$110,000–$160,000 / yearThis role is best suited for an engineer who thrives on first-principles problem solving, is comfortable with ambiguous, open-ended challenges, and can communicate well across functions, ensuring well- coordinated thermal management solutions. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information.
Thermal Engineer StarcloudThermal EngineerRedmond, Washington$125,000–$160,000 / yearThese subsystems include cold plates, coolant loops, pumps, and very large lightweight deployable radiators, working closely with the mechanical and mechanisms teams. Preferred Qualifications: Proven track record in spacecraft thermal design, delivering optimized solutions for mass, cost, reliability, performance, and manufacturability.
Senior Thermal Engineer Gravitics, IncSenior Thermal EngineerSeattle, WA$135,000–$170,000 / yearOn our hardware-focused team, you'll take thermal systems from concept to launch: writing architectures, requirements, and development roadmaps; performing component selection and detailed analysis; supervising contract or in-house manufacturing; and supporting test, qualification, and on-orbit operations. To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. . .
Senior Engineer, Avionics Thermal Engineering (R5298) Shield AISenior Engineer, Avionics Thermal Engineering (R5298)Seattle, WA$130,000–$200,000 / yearThis role is best suited for an engineer who thrives on first-principles problem solving, is comfortable with ambiguous, open-ended challenges, and can communicate well across functions, ensuring well coordinated thermal management solutions. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information.
NewThermal Engineer - Seattle,WA/ San Jose,CA -June26 Keltia Design IncThermal Engineer - Seattle,WA/ San Jose,CA -June26Seattle, WAThermal Analysis & Modeling: Perform thermal simulations using tools such as ANSYS Thermal Desktop to evaluate spacecraft performance in space environments. Cross-functional Collaboration: Work with optics, avionics, propulsion, and systems engineering teams to resolve thermal design challenges.
Thermal Engineer, Satellites (Starlink) SpaceXThermal Engineer, Satellites (Starlink)Redmond, WA$100,000–$115,000 / yearTo conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. You may also be eligible for long-term incentives, in the form of company stock, stock options, or long-term cash awards, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan.
Lead Thermal Engineer StarcloudLead Thermal EngineerRedmond, Washington$200,000–$250,000 / yearHigh-power thermal systems: pumped fluid loops, large radiators, industrial heat exchangers, data center cooling, power-plant systems, automotive thermal, refrigeration, or petroleum process systems. By moving compute into orbit, we tap nearly unlimited solar power and radiate heat straight into the cold of space, escaping the energy and cooling limits that constrain data centers on Earth.