57 performance test engineer jobs at 35 companies in Langley, WA

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System Performance Verification Engineer
Mount Vernon, Washington, United States
$78k-$116k/yr OnsiteFull Time
PACCAR
PACCARNasdaq: PCAR: Designs and manufactures heavy-duty commercial trucks and diesel engines.
3+ YOEB.S. in engineering, 3+ years relevant engineering experience, knowledge of diesel aftertreatment and engine control systems, EMR/data scripting (MATLAB, Python, Minitab) and test cell data experience.
MATLAB, Python, Minitab, ATI Vision, Vector CANape, Cummins Calterm, ETAS INCA, Vector CANalyzer
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
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
3d
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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
2d
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Senior Test Automation Engineer
Seattle, Washington, United States
$146k-$194k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
10+ YOE10+ years building automated verification suites, HITL/SITL automation, CI/CD and SRE practices, Python scripting, Terraform, container workflows, and performance testing integration.
Jenkins, GitLab CI, GitHub Actions, Python, Terraform, AWS, Azure, GCP, Docker, Kubernetes, NixOS
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.
2mo
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Construction Engineer
Renton, Washington, United States
$100k-$115k/yr FieldFull Time
Shimmick
ShimmickNASDAQ: SHIM: Builds large-scale water and transportation infrastructure projects.
2+ YOEBachelor's in engineering or construction management, 2 years relevant experience (or equivalent), perform field inspections, quantity surveys, interpret drawings, prepare reports, ensure safety compliance, pass pre-employment substance test.
2w
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Senior Fluids Engineer
Seattle, Washington, United States
$160k-$185k/yr OnsiteFull Time
Cowboy Space
Cowboy Space: Building satellite-based orbital infrastructure for AI data centers.
3+ YOEBachelor's in engineering, 3+ years designing flight or high-performance fluid system hardware; hands-on build/test experience; fluid and structural analysis skills; CAD proficiency (NX, CATIA, SolidWorks).
NX, CATIA, SolidWorks
4w
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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
1w
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Principal Datacenter Mechanical Engineer
Redmond, Washington, United States
$143k-$275k/yr HybridFull Time
Microsoft
MicrosoftNASDAQ: MSFT: Develops software, services, devices, and cloud computing solutions.
6+ YOEDesign and develop mechanical datacenter systems, perform analysis and testing, support fabrication/installation, conduct root-cause investigations; doctorate/master/bachelor in mechanical engineering or equivalent experience with multi-year engineering experience.
4w
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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
3w
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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
5d
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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
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
2d
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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
2w
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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.
2mo
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Nuclear Fuels Lead Engineer
Everett, Washington, United States
$150k-$210k/yr OnsiteFull Time
Zap Energy
Zap Energy: Develops compact and scalable fusion reactors for carbon-free power.
8+ YOE2+ MgmtLead the Nuclear Fuels team in an NRC/NQA-1 program; experience in fuel performance modeling, testing, supplier engagement, and regulatory documentation.
BISON, Python, Nuclear safety analysis, Regulatory documentation tools
1w
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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
1mo
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Security Engineer, Stores Security
Seattle, Washington, United States
$136k-$184k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
Bachelor's degree required; knowledge of system security vulnerabilities, web protocols, authentication and cryptography; experience writing code/scripts and performing security testing; familiarity with secure SDLC.
Java, Python, JavaScript, AWS
2w
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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