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142 simulation engineer jobs at 73 companies in Napa, CA

2mo
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Simulation Engineer
San Francisco, California, United States
OnsiteFull Time
Humble Robotics
Humble Robotics: Developing autonomous, electric, cabless heavy-duty freight haulers.
BS/MS/PhD in CS/EE/Robotics or equivalent; strong Python; experience with simulation systems; eligible to work in the US.
Python, Simulation Systems, NeRFs, Gaussian splatting, World models, Sensor simulation
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1mo
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Simulation Researcher/Engineer
Los Angeles or New York or San Francisco or Remote or United States or Singapore
$250k-$450k/yr HybridFull Time
Luma AI
Luma AI: Generative AI for high-quality video and 3D modeling.
Strong robotics simulation/graphics/physics modeling background; Python and C++ proficiency; production physics engine experience; track record building usable simulation systems.
Python, C++, Isaac Sim, MuJoCo, Bullet, PhysX, Drake
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1w
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Staff Simulation Engineer - Foundry
San Francisco, California, United States
$199k-$292k/yr OnsiteFull Time
DoorDash
DoorDashNASDAQ: DASH: On-demand delivery platform connecting consumers with local merchants.
10+ YOEMaster's or PhD in CS/EE/ME/Robotics/Aerospace, 10+ years in robotics or physics-based simulation, deep simulator internals expertise, simulation-autonomy integration, technical leadership experience.
MuJoCo, Gazebo, Isaac, Newton, Genesis, Covey
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1w
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Lead Thermal Simulation Engineer
San Francisco, California, United States
$342k-$445k/yr OnsiteFull Time
OpenAI
OpenAI: Develops artificial intelligence models and generative AI software services.
Experience in thermal simulation and analysis of electromechanical systems, correlating models with test data, and developing simulation workflows; familiarity with robotics and multidisciplinary collaboration.
Simcenter 3D, Abaqus, Ansys, Nastran, LS-DYNA, COMSOL
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1mo
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Modeling & Simulation Engineer
El Segundo or Los Angeles or Washington or San Francisco or San Diego or Seattle or London
$140k-$190k/yr OnsiteFull Time
CHAOS Industries
CHAOS Industries: Develops advanced radar and sensing systems for modern defense.
5+ YOEBachelor's degree in a quantitative field, 5+ years supporting defense or advanced tech programs, proficiency in Python and MATLAB, experience with mission-level simulations (AFSIM, ESAMS, Brawler, Ansys STK), statistical analysis, Linux, and eligibility for Top Secret/SCI clearance.
AFSIM, ESAMS, Brawler, Ansys STK, Python, MATLAB, Pandas, Polars, NumPy, SciPy, Scikit-Learn, Matplotlib, Seaborn, CuPy, PyTorch, Linux, MAK VR-Forces, SIMDIS, PX4, X-Plane, Gazebo, NVIDIA Omniverse
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2d
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Staff Thermal Simulation Engineer
Berkeley, California, United States
$166k-$194k/yr OnsiteFull Time
Form Energy
Form Energy: Developing multi-day batteries for grid-scale energy storage.
8+ YOEPhD/MS/Bachelor in relevant field with industry experience (Bachelor+8+ years), deep CFD and thermal-fluid expertise, experience with Ansys Fluent/Star-CCM+/Comsol, Python or MATLAB scripting, and translating simulation to design.
Ansys Fluent, Star-CCM+, Comsol Multiphysics, Python, MATLAB
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4d
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Simulation Software Engineer
South San Francisco, California, United States
OnsiteFull Time
Zipline
Zipline: Operates an autonomous drone delivery system for medical supplies.
4+ YOE4+ years software engineering with C++ or Rust, experience building high-fidelity robotics/aerospace simulations or digital twins, expertise in determinism, time synchronization, IPC, and CI/HIL environments; eligible to work in the US.
C++, Rust, CI, HIL
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2mo
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IC Packaging Simulation Engineer
Austin or San Francisco
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
10+ YOEBS with 10+ years in IC packaging FEM simulation; proficient in ANSYS/ABAQUS; MATLAB and Scientific Python; CAD/FEM scripting; Gen-AI/ML; knowledge of packaging materials and reliability.
ANSYS, ABAQUS, HyperMesh, MATLAB, Scientific Python, Gen-AI
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3d
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Member of Technical Staff – Senior Engineer, Robot Simulation
San Francisco, California, United States
$180k-$240k/yr OnsiteFull Time
Walden Robotics
Walden Robotics: A robotics building simulation platforms and technology to advance general-purpose robot capabilities.
Expertise in robotics/physics simulation, Python or C++, experience with Isaac Sim/MuJoCo/Drake, profiling and performance optimization, and technical leadership/mentorship.
Isaac Sim, MuJoCo, Drake, Python, C++
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2mo
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Modeling and Simulation Engineer, Thermofluid mechanics
Emeryville, California, United States
$190k-$215k/yr OnsiteFull Time
Atomic Machines
Atomic Machines: Develops AI-powered robotic platforms for autonomous micro-scale manufacturing.
4+ YOE4+ years in multiphysics modeling and simulation; strong structural mechanics, heat transfer, and fluid dynamics; Python programming; experience with COMSOL and/or Ansys; familiarity with Abaqus/Siemens tools a plus.
COMSOL, Ansys, Abaqus, Siemens tools, Python, Onshape, Fusion 360, SolidWorks, NX
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1w
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Simulation Platform Lead
San Francisco, California, United States
$200k-$240k/yr OnsiteFull Time
Stand
Stand: Provides homeowners insurance using physics-driven AI risk assessment.
5+ YOE5+ years building production data, simulation, or modeling pipelines; experience leading engineers; cloud infrastructure, CI/CD, infrastructure-as-code, cluster compute and workflow orchestration (Slurm/Kubernetes, Prefect/Airflow); strong communication and stakeholder coordination.
Slurm, Kubernetes, Prefect, Apache Airflow
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3mo
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Senior Vehicle Dynamics Simulation Engineer
Mountain View or San Francisco
$196k-$242k/yr HybridFull Time
Waymo
Waymo: Autonomous driving technology for ride-hailing and logistics.
5+ YOEMaster’s degree in engineering or related field or equivalent practical experience; 5+ years vehicle dynamics modeling; tire and chassis dynamics knowledge; experience with Simscape/Maplesim/Carsim/CarMaker/Adams; 2+ years C++ and Python; hybrid work.
C++, Python, Simscape, Maplesim, Carsim, CarMaker, Adams, Modelica, FMI
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1mo
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Forward Deployed Engineer, Physics & Simulation
Menlo Park or San Francisco or Taiwan
$180k-$250k/yr FieldFull Time
Periodic Labs
Periodic Labs: Builds autonomous laboratories for AI-driven scientific discovery.
Expertise in numerical simulation and physics, proficiency in Python and scientific libraries, experience with PDE solvers and mesh/solver tuning, willingness to embed on-site with customers including extended stays in Taiwan, bachelor's degree or equivalent.
Python, NumPy, SciPy, OpenFOAM, ANSYS Fluent, Star-CCM+, Onnes
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2mo
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Simulation Engineer I - Digital Media Services
Sacramento, California, United States
$27-$35/hr OnsiteFull Time
University of the Pacific
University of the Pacific: Providing higher education and degree programs.
1+ YOEHigh school diploma; 1 year in media resources support and helpdesk hardware/software.
ServiceNow, Ticketing System
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2mo
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Software Engineer, Mission Simulation
Alameda, California, United States
OnsiteFull Time
Rain
Rain: Autonomous aircraft software for early wildfire containment.
Design, implement, and maintain large-scale simulation and integration infrastructure for multi-aircraft autonomy in a safety-critical environment.
C++, Python, Linux, Docker, CMake, Conan, gdb, Valgrind, Memcheck
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1mo
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Engineer, Ride Comfort Objectivation & Simulation
Novi or Charlotte or San Francisco or Los Angeles or New York City
$130k-$160k/yr OnsiteFull Time
Scout Motors
Scout Motors: Designs and manufactures all-electric rugged SUVs and trucks.
8+ YOEBachelor's degree in engineering, 8+ years in ride comfort/vehicle dynamics, hands-on instrumentation and proving-ground testing, experience with MBS and correlation, proficiency with CANape, INCA, Diadem, MATLAB, Python, Adams/CarSim/Simpack.
CANape, INCA, Diadem, MATLAB, Python, Adams, CarSim, Simpack
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2mo
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Software Engineer — Distributed Simulation Systems
Emeryville, California, United States
$100k-$400k/yr HybridFull Time
Astera Institute
Astera Institute: Conducts fundamental research in artificial intelligence and longevity science.
Strong C++ systems programming, distributed systems, networking, MuJoCo/3D physics, Linux, concurrency, and performance optimization.
C++, MuJoCo, Python, PyTorch, Linux, Networking, CUDA, GPU, ECS
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4d
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Modeling and Simulation Module Developer - Data & AI Acceleration (Hybrid)
South San Francisco, California, United States
$97k-$184k/yr HybridFull Time
AbbVie
AbbVieNYSE: ABBV: Develops and sells innovative pharmaceutical and biopharmaceutical medicines.
3+ YOEMaster's (3–5 years) or PhD in quantitative field, strong R development, dashboard and agentic AI experience, statistical rigor, and software engineering practices.
R, LLM, CI/CD, retrieval-augmented generation
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13h
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Software Engineer, Simulation Systems
Houston or San Francisco
OnsiteFull Time
Bot Auto
Bot Auto: Operates a fleet of autonomous trucks for freight transportation.
Bachelor's or Master's in CS/Robotics/Electrical Engineering, strong C++ (C++17) skills, OOP and data structures knowledge, Linux familiarity, basic multithreading and debugging skills, strong problem-solving and communication.
C++, C++17, Python, Linux, ROS, ROS2, Docker, Git, CARLA, Isaac Sim, Unreal Engine, Gazebo
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3w
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Lead Backend Engineer (Modeling & Simulation)
Boston or San Francisco or United States
HybridFull Time
Code Metal
Code Metal: Verifiable AI-powered code translation for mission-critical industries.
Strong backend engineering experience building production enterprise software in Python, designing services/APIs, relational databases (PostgreSQL), ORMs/migrations, cloud deployments, and providing technical leadership for small teams.
Python, PostgreSQL, SQLAlchemy, Alembic, Django ORM, FastAPI, Flask, Django, Pydantic, OpenAPI, JSON Schema, protobuf, Docker, Kubernetes, AWS, Azure, GCP
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