Performance Modeling Lead OpenAI LLCPerformance Modeling LeadSeattle, WAFor unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. This role sits at the intersection of AI workloads, system architecture, and quantitative modeling, and requires strong technical judgment, ownership, and the ability to translate complex analysis into clear, actionable guidance.
Senior Quantum Applied Research Scientist, Physics Modeling NVIDIASenior Quantum Applied Research Scientist, Physics ModelingRedmond, WashingtonBuild physics-informed synthetic data generation pipelines that leverage quantum device models, noise channels, and Hamiltonian characterization to produce high-quality datasets. Develop detailed noise models of quantum hardware that capture device physics, decoherence, and drift behavior, enabling accurate performance prediction and parameter inference without full experimental overhead.
Performance Modeling Engineer OpenAI LLCPerformance Modeling EngineerSeattle, WAFor unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. In this role, you will work closely with the Performance Modeling Lead and partner teams to analyze system behavior, run simulations or analytical models, and help quantify tradeoffs across compute, memory, networking, and storage.
Performance Modeling Engineer ~2 OpenAI LLCPerformance Modeling Engineer ~2Seattle, WAFor unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. In this role, you will partner closely with Senior Performance Modeling Engineers and the Performance Modeling Lead to analyze system behavior, run simulations and analytical models, and help evaluate tradeoffs across compute, memory, networking, and storage.
Quantitative Analyst — COMPASS Modeling Think Tank, Inc.Quantitative Analyst — COMPASS ModelingSeattle, WAPosition is Subject to Contract Award POSITION DESCRIPTION:Description of Duties:Develop and advance the Comprehensive Passage (COMPASS) model for application in river systems to evaluate effects of stressors and management actions across fish life cycles, using statistical modeling, computer modeling, statistical/quantitative analysis, and other quantitative modeling techniques. Reproducible analytical workflows documented; modeling scripts, methods, and results shared via open-science platforms (e.g., GitHub).Written status reports and other ad hoc communications; participation in field tasks as needed.
BIM Modeling & Detailing Lead Hoffman Construction CoBIM Modeling & Detailing LeadKirkland, WA$65,000–$120,000 / yearThis role is primarily focused on supporting Hoffman''s self-perform divisions: encompassing concrete, rebar, mass timber, wall framing, drywall, and specialty architectural scopes; through the creation and management of 3D models, production of shop drawings, active participation in multi-trade BIM coordination, and direct contribution to project planning efforts. Hoffman Construction is a forward-thinking, self-performing builder specializing in technically complex, sustainable projects across advanced technology, mission critical, life sciences, healthcare, higher education, and commercial markets.
Senior Fisheries Data Scientist – Salmon Survival, Migration, and Mark-Recapture Modeling Lynker CorporationSenior Fisheries Data Scientist – Salmon Survival, Migration, and Mark-Recapture ModelingSeattle, WashingtonContractorOverview: Lynker Corporation is seeking a Senior Fisheries Data Scientist – Salmon Survival, Migration, and Mark-Recapture Modeling to support NOAA Fisheries’ Northwest Fisheries Science Center (NWFSC), Fish Ecology Division, by providing statistical analysis to inform management decisions. Our continually expanding team combines scientific expertise with mature, results-driven processes and tools to achieve technically sound, cost effective solutions in hydrology/water sciences, geospatial analysis, information technology, resource management, conservation, and management and business process improvement.
Senior Multiphysics Modeling Engineer HelionSenior Multiphysics Modeling EngineerEverett, WashingtonExecute rigorous verification and validation (V&V) by performing convergence studies, co-designing calibration and validation experiments with materials and test engineers, and systematically comparing model predictions to experimental results to quantify discrepancies and refine models, properties, and test plans to close the simulation–experiment gap. 5+ years of experience in multiphysics finite element or finite volume modeling of coupled thermal–mechanical systems including experience with irradiated materials modeling and materials in severely degrading environments (e.g., plasma, fusion/fission, high-flux/high-dose environments, etc.).
Systems Modeling Mechanical Engineer, Fleet Remediation Engineering Amazon.com IncSystems Modeling Mechanical Engineer, Fleet Remediation EngineeringSeattle, WAYou will be responsible for creating, maintaining, and validating high-fidelity models of our data center cooling systems, using these models to optimize performance, predict failures, and validate innovative product designs (such as advanced liquid cooling or high-density air-handling units) before deployment. Build and maintain high-fidelity system models of data center mechanical systems - including cooling infrastructure (CRAC/CRAH, DAHU, chillers, liquid cooling) and airflow environments - continuously calibrated against physical test data and field measurements.
Staff Machine Learning Engineer, Generative AI Modeling and Inference Snap IncStaff Machine Learning Engineer, Generative AI Modeling and InferenceSeattle, WA$229,000–$343,000 / yearOur team creates intuitive tools, platforms, and agentic systems that empower creators, developers, and internal teams to bring ideas to life, while advancing personalized, human-centric experiences across mobile, web, and wearable devices like Spectacles. 8+ years of post-Bachelor's machine learning or related experience; or a Master's degree in a technical field + 7+ years of post-grad ML or related experience; or a PhD in a related technical field + 4+ years of post-grad ML or related experience.
Applied Scientist, Conversational AI ModEling and Learning Amazon.com IncApplied Scientist, Conversational AI ModEling and LearningBellevue, WAConversational AI ModEling and Learning (CAMEL) team is part of Amazon Devices organization where our mission is to build a best-in-class Conversational AI that is intuitive, intelligent, and responsive, by developing superior Large Language Models (LLM) solutions and services which increase the capabilities built into the model and which enable utilizing thousands of APIs and external knowledge sources to provide the best experience for each request across millions of customers and endpoints. The ideal candidate would also have hands-on experiences in building Generative AI solutions with LLMs, enjoy operating in dynamic environments, be self-motivated to take on challenging problems to deliver big customer impact, moving fast to ship solutions and then iterating on user feedback and interactions.
Senior EMS Modeling Engineer TRC Companies, Inc.Senior EMS Modeling EngineerSeattle, Washington$91,603.20–$165,000 / yearFull timeOther Compensation: Employee may be eligible for participation in the Company’s annual Discretionary Bonus Program which is contingent on Company, Business Segment, and Individual performance against Key Performance Indicators which vary by year and employee. Together, TRC and WSP’s 83,000 experts create positive, long-lasting impacts for our communities and our clients in the power and energy, transportation and infrastructure, environmental, and property and buildings sectors.
Staff Machine Learning Engineer, Generative AI Modeling And Inference SnapchatStaff Machine Learning Engineer, Generative AI Modeling And InferenceSeattle, WA$229,000–$343,000 / yearOur team creates intuitive tools, platforms, and agentic systems that empower creators, developers, and internal teams to bring ideas to life, while advancing personalized, human-centric experiences across mobile, web, and wearable devices like Spectacles. 8+ years of post-Bachelor's machine learning or related experience; or a Master's degree in a technical field + 7+ years of post-grad ML or related experience; or a PhD in a related technical field + 4+ years of post-grad ML or related experience.
Systems Modeling Engineer - Space Safety & Sustainability - TeraWave Blue Origin Enterprises LPSystems Modeling Engineer - Space Safety & Sustainability - TeraWaveSeattle, WA$121,023–$169,432.20 / yearand/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. You will work alongside engineers modeling power, communications, and orbital performance, ensuring that space safety analysis is tightly coupled to the broader system picture and that sustainability trades are evaluated in the context of their impact on network capability.
Quantitative Fisheries Scientist – Life Cycle Modeling and Management Analysis Lynker CorporationQuantitative Fisheries Scientist – Life Cycle Modeling and Management AnalysisSeattle, WashingtonFull timeOverview: Lynker is seeking a PhD-level Quantitative Fisheries Scientist – Life Cycle Modeling and Management Analysis to support NOAA Fisheries’ Northwest Fisheries Science Center (NWFSC), Fish Ecology Division, by quantitatively analyzing compiled datasets to inform management decisions. Our continually expanding team combines scientific expertise with mature, results-driven processes and tools to achieve technically sound, cost effective solutions in hydrology/water sciences, geospatial analysis, information technology, resource management, conservation, and management and business process improvement.
Senior Systems Modeling Engineer, Beam Planning & Network Optimization Blue Origin Enterprises LPSenior Systems Modeling Engineer, Beam Planning & Network OptimizationSeattle, WA$145,188–$203,263.20 / yearAs a large-scale low Earth orbit constellation operating thousands of satellites across multiple orbital shells, TeraWave must solve resource assignment problems of extraordinary combinatorial complexity - from deciding which beams illuminate which ground cells at each moment in time, through routing data across a dynamic optical inter-satellite link mesh with thousands of nodes and time-varying topology, to assigning satellites to gateways and managing handovers as the constellation moves overhead. As part of this team, you will also contribute to the broader modelling of TeraWave's constellation performance - including its ability to maintain consistent customer service through progressive deployment phases, satellite failures, and orbital manoeuvres - bringing the network optimization perspective into system-level figures of merit and ensuring that resource assignment trades are evaluated in the context of their impact on end-to-end service delivery.
Senior Computational Plasma Scientist - Kinetic / PIC Modeling Helion Energy IncSenior Computational Plasma Scientist - Kinetic / PIC ModelingEverett, WAYou will focus on turning kinetic simulations into actionable physics insight for topics such as plasma startup, RF/plasma interactions, particle transport, sheath behavior, and other effects that may not be fully captured by fluid or MHD models. In this role, you will use tools such as WarpX or similar PIC codes to design simulation campaigns, analyze large-scale field and particle outputs, and compare results against experimental data from Helion's operating machines.
Senior Computational Plasma Scientist - Kinetic / PIC Modeling HelionSenior Computational Plasma Scientist - Kinetic / PIC ModelingEverett, WashingtonSince Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. You will focus on turning kinetic simulations into actionable physics insight for topics such as plasma startup, RF/plasma interactions, particle transport, sheath behavior, and other effects that may not be fully captured by fluid or MHD models.
Applied Scientist, Operations Research, Modeling and Optimization (MOP) Amazon.com IncApplied Scientist, Operations Research, Modeling and Optimization (MOP)Bellevue, WAAmazons Modeling and Optimization (MOP) team seeks motivated individual with strong analytical and algorithmic skills to optimize the global logistics network and its operations. A Day in the Life: Lead development of production-ready algorithms and scientific tools for under-the-roof (UTR) and network process analysis and optimization.
US International Tax / Modeling Sr. Manager, Strategic Tax Planning Amazon.com IncUS International Tax / Modeling Sr. Manager, Strategic Tax PlanningSeattle, WAIn this role, you will drive significant initiatives with other tax team members on a wide variety of projects spanning international planning topics, including 951A/GILTI, foreign tax credits (FTC), Subpart F, BEAT, FDII, DCL/anti-hybrid and Pillar Two. The role requires in-depth U.S. international tax technical knowledge, the ability to evaluate and advise on international business initiatives, and the quantitative skills to translate technical conclusions into modeling analysis.