52 performance test engineer jobs at 32 companies in Des Moines, WA
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
3w
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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
1w
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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
6d
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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
2mo
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Tech, Test Lab - Days / Nights
Tacoma, Washington, United States
$25-$37/hr OnsiteFull Time
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
1d
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Staff Software Engineer, TPU Performance
Sunnyvale or Kirkland
$207k-$300k/yr OnsiteFull Time
8+ YOEBachelor's degree or equivalent practical experience; 8 years software development; 5 years testing and launching products; ML performance analysis; software architecture and technical leadership experience preferred.
JAX, PyTorch, OpenXLA, NVIDIA, AMD, Tensor Processing Unit (TPU)
2mo
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Navigation Framework Software Development in Test (SDET) – Apple Maps
Seattle, Washington, United States
OnsiteFull Time
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.
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
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
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
3w
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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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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
4d
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Senior Software Engineer (Frontend) - Scribd Core
San Francisco or Ottawa or Phoenix or Toronto or Los Angeles or Denver or Salt Lake City or Atlanta or Chicago or Houston or Portland or New York City or Vancouver or San Diego or Washington, D.C. or Sacramento or Jacksonville or Seattle or Mexico City or Austin or Miami or Boston or Dallas
$124k-$226k/yr HybridFull Time
6+ YOERequires 6+ years of frontend software engineering experience, JavaScript/TypeScript and React expertise, modern web framework experience, architecture knowledge, performance optimization, testing, and strong collaboration skills.
JavaScript, TypeScript, React, Next.js, Microfrontend, monorepos
1w
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Engineer - Unlicensed - 2026
Seattle, Washington, United States
FieldFull Time
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.
1mo
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Full Stack Engineer
Seattle, Washington, United States
$110k-$120k/yr OnsiteFull Time
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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Senior Core Infrastructure Engineer
Seattle or Santa Clara
$79k-$210k/yr OnsiteFull Time
3+ YOEDesign and implement scalable, resilient distributed systems; build fault-tolerant components; automate infrastructure (IaC); perform performance testing, telemetry, runbooks, incident response, and apply security controls.
DevOps, Java, Infrastructure as Code (IaC)
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