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48 performance test engineer jobs at 30 companies in Bellevue, WA

2mo
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Electric Motor Performance Engineer
Everett, Washington, United States
$150k-$200k/yr OnsiteFull Time
magniX
magniX: Designs and manufactures electric propulsion systems for sustainable aircraft.
7+ YOEBachelor's in Electrical Engineering required; 7+ years electromagnetic modeling experience (3+ years aerospace preferred); expert in electric motor performance modeling, multi-physics simulation, and test validation; proficiency with MATLAB, Simulink, ANSYS, Motor-CAD, OptiSlang, Twin Builder.
Maxwell 2D/3D, ANSYS Workbench, ANSYS Electronics Desktop, Motor-CAD, OptiSlang, Twin Builder, MATLAB, MATLAB Simulink
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1mo
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GPU Performance Engineer
Sunnyvale or Bellevue
$120k-$160k/yr OnsiteFull Time
CoreWeave
CoreWeaveNASDAQ: CRWV: Cloud platform providing GPU-accelerated infrastructure for AI workloads.
2+ YOE2+ years software engineering experience; proficiency in Go and/or Python; production Kubernetes experience; develop performance tests, automation, and platform tooling; participate in on-call rotation.
Go, Python, Kubernetes
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1w
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Engines System Balance & Performance Engineer II
Seattle or Huntsville
$99k-$139k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
2+ YOEB.S. in mechanical/aerospace engineering, 2+ years engineering experience, experience modeling complex fluid systems, familiarity with numerical solvers, engine testing, and Fortran/Python/Matlab.
Python, MatLab, Fortran, ROCETS, NPSS, GFSSP, Thermal-Desktop, Agentic AI
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1mo
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Tech, Test Lab - Days / Nights
Tacoma, Washington, United States
$25-$37/hr OnsiteFull Time
Toray Composite Materials America
Toray Composite Materials AmericaTokyo Stock Exchange: 3402: Produces advanced carbon fiber and composite materials for industry.
2+ YOELaboratory technician role performing calibration, testing, and maintenance; requires HS diploma, 2+ years lab experience or Associate degree; proficient in MS Excel/Word; export control compliance.
Laboratory equipment, Calibration equipment, Microsoft Excel, Microsoft Word
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1d
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Hardware Engineer
Redmond, Washington, United States
$85k-$168k/yr OnsiteFull Time
Microsoft
MicrosoftNASDAQ: MSFT: Develops software, services, devices, and cloud computing solutions.
Bachelor's degree or equivalent experience in engineering; perform signal integrity test/measurement (VNA, TDR), PCB probing, debug failures, follow industry test standards, pass Microsoft cloud background check.
VNA, TDR, Keysight PLTS, High-Bandwidth scope
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1mo
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Navigation Framework Software Development in Test (SDET) – Apple Maps
Seattle, Washington, United States
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
Design and build scalable test solutions and automation to improve quality, reliability, and performance of Maps across platforms; collaborate with engineers and take ownership of testing initiatives.
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2d
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Fluids Engineer
Seattle, Washington, United States
$120k-$150k/yr OnsiteFull Time
Cowboy Space
Cowboy Space: Building satellite-based orbital infrastructure for AI data centers.
3+ YOEBachelor's in engineering, 3+ years designing fluid system hardware for flight or high-performance applications, CAD proficiency (NX/CATIA/SolidWorks), hydraulic/pneumatic and structural analysis, hands-on build/test experience.
NX, CATIA, SolidWorks
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2d
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AI Automation Engineer L1
Bellevue, Washington, United States
$100k-$180k/yr OnsiteFull Time
Wipro
WiproNYSE: WIT: Global technology services and consulting for digital transformation.
8+ YOE8+ years experience in enterprise platform engineering with Python and AI/ML ops; designing AI testing frameworks, performance testing, and CI/CD-integrated LLM evaluation pipelines.
Python, SQL, LLM, CI/CD
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1mo
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Mechanical Engineer IV
Lynnwood, Washington, United States
$151k-$177k/yr OnsiteFull Time
Crane Company
Crane CompanyNYSE: CR: Manufactures engineered components for aerospace and industrial process markets.
8+ YOEBA/BS in engineering required (Master's/PhD preferred), 8+ years relevant experience, knowledge of mechanics, heat transfer, vibration, and electronics packaging, proficiency with Autodesk Inventor, mentoring experience, and ability to perform analyses and testing.
Autodesk Inventor
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ITC Engineer (Seattle, WA, US)
Seattle, Washington, United States
$126k-$135k/yr FieldFull Time
Alstom
AlstomEuronext Paris: ALO: Manufactures high-speed trains, signaling systems, and railway infrastructure
4+ YOEBachelor's in engineering and 4 years' related experience. Perform testing and commissioning of CBTC, supervise installations, troubleshoot wayside/railway systems, use Wireshark, Python, WinSCP, Linux/Unix and TCP/IP.
Wireshark, Python, WinSCP, Linux/Unix, TCP/IP, CBTC, ATS, ATC
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1mo
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Mechanical Engineer, Satellite Harnessing (Starlink)
Redmond, Washington, United States
$100k-$140k/yr OnsiteFull Time
SpaceX
SpaceX: Designs and launches advanced rockets and satellite internet constellations.
1+ YOEBachelor's in engineering, experience with CAD/FEA, 1+ years hands-on mechanical project experience preferred, proficiency with Siemens NX/Teamcenter, ability to perform analysis and testing, and willingness to work long hours and travel up to 30%.
Siemens NX, Teamcenter, FEA, CAD
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1mo
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Staff Propulsion Engineer
Seattle or Durango or Mount Pleasant or Tulsa
$144k-$200k/yr HybridFull Time
Agile Space Industries
Agile Space Industries: Designs and manufactures in-space chemical propulsion systems for spacecraft.
12+ YOEM.S. or equivalent experience; 12+ years developing propulsion systems with expertise in fluid dynamics, heat transfer, combustion, hypergolic propulsion, performance modeling, testing, and mentorship.
TDK, SolidWorks, CFD, FEA, ANSYS, MATLAB/Simulink, JANNAF
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2w
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Physical Security Engineer, R&D
Austin or New York City or San Francisco or Seattle
$229k-$271k/yr OnsiteFull Time
Fluidstack
Fluidstack: Provides high-performance cloud GPU infrastructure for AI development.
Design and engineer physical security systems (access control, video, intrusion, perimeter); produce drawings, device schedules and specs; configure access control and VMS; perform site surveys, punch walks, and acceptance testing.
Lenel, Genetec, CAD, Revit
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1w
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Senior Software Engineer
Seattle, Washington, United States
$176k-$196k/yr OnsiteFull Time
Compass
CompassNYSE: COMP: Technology-enabled residential real estate brokerage and agent software platform.
7+ YOE7+ years building high-performance microservices; BS in CS or equivalent; strong Go/Java and Python/NodeJS skills; experience with gRPC/Thrift, Kafka, AWS, and cloud-native testing/monitoring.
Go, Java, Python, NodeJS, gRPC, Thrift, Kafka, AWS, AWS Connect, Twilio, Sinch, Amazon Pinpoint, LangChain, LlamaIndex, AutoGen, OpenAI, Anthropic, AWS Bedrock
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3w
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Senior Network Hardware Engineer
Seattle, Washington, United States
$102k-$210k/yr OnsiteFull Time
Oracle
OracleNYSE: ORCL: Provides cloud infrastructure and enterprise software for global businesses.
3+ YOE3+ years qualifying and testing network and optical components, performing interoperability and performance validation, vendor management, NPI release preparation, lab safety and change-control compliance.
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5d
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Software Development Engineer III
Bellevue, Washington, United States
$166k-$203k/yr HybridFull Time
Amex GBT
Amex GBTNYSE: GBTG: Provides travel management services and technology for businesses.
5+ YOEBachelor's in CS/IT plus 5+ years experience in object-oriented programming, RESTful services, mobile engineering (MVC/MVVM/SDUI), automated and performance/network testing; experience with Objective C or Swift.
Restful web services, MVC, MVVM, SDUI, Objective C, Swift, Performance Testing, Network Testing, Automated Testing
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9h
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Engineer - Unlicensed - 2026
Seattle, Washington, United States
FieldFull Time
American Cruise Lines
American Cruise Lines: Operates small ship and river cruises within the United States.
Experience with diesel machinery, hydraulics, and electrical systems; knowledge of shipboard machinery; TWIC card; pass pre-employment drug test; able to live and work onboard, lift up to 50 lbs, and perform physical duties.
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3w
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Full Stack Engineer
Seattle, Washington, United States
$110k-$120k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
4+ YOEBachelor's in Computer Science,4+ years building production SPAs with Vue3,experience with REST APIs,Django/DRF,testing and frontend performance optimizations.
Vue3, Vuetify, Pinia, vue-router, Jest, Vitest, Cypress, Playwright, Storybook, Python, Django, Django REST Framework, REST, OAuth, JWT, JSON
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4d
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Material Developer, Apparel
Seattle, Washington, United States
$92k-$138k/yr HybridFull Time
Brooks Running
Brooks Running: Sells high-performance running shoes and apparel for runners.
5+ YOEBachelor's or equivalent,5+ years developing performance knits/wovens, textile testing and costing expertise, PLM and Flex experience, proficiency with Microsoft Office and Illustrator, strong project management and communication.
PLM, Flex, Microsoft Word, Microsoft Excel, Microsoft Outlook, Microsoft PowerPoint, Keynote, Illustrator
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3w
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Tech Lead, Quality Assurance Engineering - Global E-commerce
Seattle, Washington, United States
$170k-$278k/yr OnsiteFull Time
TikTok
TikTok: Global short-form video hosting and social media platform.
5+ YOE2+ MgmtBachelor's in Computer Science,5+ years testing/development in internet companies,2+ years leading QA,proficiency in Java/Python/Go,knowledge of CI/CD,automation,performance and stability testing.
Java, Python, Go, CI/CD
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