76 performance testing engineer jobs at 49 companies in Washington
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System Performance Verification Engineer
Mount Vernon, Washington, United States
$78k-$116k/yr OnsiteFull Time
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
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
2w
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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
1mo
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Performance Software Engineer
California or Colorado or Connecticut or Florida or Georgia or Illinois or Kansas or Massachusetts or Maryland or Maine or New Jersey or North Carolina or New York or Oregon or Tennessee or Texas or Virginia or Washington or Austin or Tampa or Chicago
$150k-$230k/yr HybridFull Time
6+ YOE6+ years software engineering experience (including 2+ years with k6/load test frameworks and JavaScript); 2+ years cloud native AWS experience; bachelor\u0002s degree in CS/CE/IT or equivalent; expertise in distributed systems, containers, scripting (Bash/Python).
k6, JavaScript, Grafana, InfluxDB, Java, Kotlin, C++, Golang, Postgres, AWS, PostgreSQL, Bash, Python
2mo
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Construction Material Testing Tech-Arlington, WA
Arlington, Washington, United States
$25-$35/hr OnsiteFull Time
Perform inspection and testing on construction projects; interpret plans, communicate with PMs; field testing; code familiarity; certifications preferred.
1mo
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Fuel Development & Testing Team Manager
Bellevue, Washington, United States
$168k-$252k/yr OnsiteFull Time
8+ YOE2+ MgmtB.S. in engineering with 8+ years relevant experience, 2+ years supervisory experience, knowledge of nuclear quality programs, design control, configuration management, fuel performance modeling/testing, and strong leadership and communication skills.
2w
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Engineer III
Richland, Washington, United States
$110k-$121k/yr OnsiteFull Time
3+ YOEPerforms engineering design, development, analysis, testing, and field support for industrial automation and controls; bachelor\u0002s degree in engineering and minimum 3 years related experience required.
PLCs, Allen-Bradley, Rockwell Automation, Ladder Logic, ControlLogix, FactoryTalk, PID
2d
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Aerospace Engineer (Flight Test)
Lakewood or Hapeville or Burlington or Westbury or Des Moines
$95k-$147k/yr OnsiteFull Time
1+ YOEEngineering bachelor's degree required, plus one year of specialized experience in aircraft performance, avionics systems testing, or human factors evaluations and compliance with airworthiness standards.
14 CFR, SF-50, eOPF
1w
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Fluids Engineer
Seattle, Washington, United States
$120k-$150k/yr OnsiteFull Time
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
1w
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AI Automation Engineer L1
Bellevue, Washington, United States
$100k-$180k/yr OnsiteFull Time
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
2mo
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Project Engineer (Mattawa, Washington)
Mattawa, Washington, United States
OnsiteFull Time
1+ YOEBachelor's in civil engineering or construction management required; 1+ years construction experience; performs field quality control tests, prepares records, orders materials, runs small crews, performs surveys, and resolves drawing issues.
Microsoft Word, Microsoft Excel, Microsoft Outlook
1mo
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Mechanical Engineer IV
Lynnwood, Washington, United States
$151k-$177k/yr OnsiteFull Time
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
1mo
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ITC Engineer (Seattle, WA, US)
Seattle, Washington, United States
$126k-$135k/yr FieldFull Time
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
1mo
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Mechanical Engineer, Satellite Harnessing (Starlink)
Redmond, Washington, United States
$100k-$140k/yr OnsiteFull Time
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
4d
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Assembly, Integration & Test (AI&T) Engineer
Tukwila, Washington, United States
$110k-$130k/yr OnsiteFull Time
3+ YOEBachelor's in engineering or equivalent experience, 3+ years production experience (space hardware preferred), ability to interpret drawings, create harness schematics, perform integration and testing, and support troubleshooting.
Plex, MRP/ERP, Jira, Git, Python, Bash
1mo
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Staff Propulsion Engineer
Seattle or Durango or Mount Pleasant or Tulsa
$144k-$200k/yr HybridFull Time
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
3w
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Physical Security Engineer, R&D
Austin or New York City or San Francisco or Seattle
$229k-$271k/yr OnsiteFull Time
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
2w
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Senior Software Engineer
Seattle, Washington, United States
$176k-$196k/yr OnsiteFull Time
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
1w
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Software Development Engineer III
Bellevue, Washington, United States
$166k-$203k/yr HybridFull Time
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
4d
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Quality Verification Engineer (TE2)
SeaTac, Washington, United States
$77k-$103k/yr HybridFull Time
Experience performing transportation construction field operations, materials testing, inspection, quality verification; valid driver’s license; able to lift up to 50 lb; strong communication and standards interpretation skills.
Microsoft Word, Microsoft Excel, Microsoft Outlook
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