2mo
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Cryogenics Engineer (f/m/d)
Darmstadt or San Francisco
OnsiteFull Time
3+ YOEMSc or PhD in engineering or physics, 3+ years thermal & fluids cryogenics analysis (or equivalent PhD research), experience with cryogenic systems (hydrogen preferred), thermal modeling (Thermal Desktop, COMSOL), and mentoring/leading projects.
Thermal Desktop, COMSOL
2w
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Staff Thermal Simulation Engineer
Berkeley, California, United States
$166k-$194k/yr OnsiteFull Time
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
1mo
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RF Engineer 5 (Fremont, CA, US, 94538)
Fremont, California, United States
$141k-$307k/yr HybridFull Time
5+ YOESenior-level RF engineering with multi-decade experience options; expertise in RF generator design, RF measurement equipment, high-voltage design, and simulation/analysis tools (SPICE, LabVIEW, Mathcad/MATLAB, HFSS, COMSOL).
SPICE, LabVIEW, Mathcad, MATLAB, HFSS, COMSOL, Microwave Studio, Power Meters, Network Analyzer, Impedance Analyzer, Spectrum Analyzer
2mo
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Mechanical Engineer 2
Fremont, California, United States
$73k-$159k/yr OnsiteFull Time
3+ YOEBachelor's in Mechanical or Mechatronics Engineering (Master's or 3 years experience for level 2). 3D CAD (CREO, NX), FEA (Creo Simulation, COMSOL), prototyping, test design, machining and sheetmetal familiarity; strong communication and problem solving.
CREO, NX, Creo Simulation, COMSOL
1mo
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RF and YIG Design Engineer
Santa Rosa, California, United States
$124k-$207k/yr OnsiteFull Time
6+ YOEBS/MS/PhD in Electrical Engineering or Physics, 6+ years relevant experience; strong RF/microwave theory, magnetics, and hands-on RF measurement experience; proficiency with RF simulation tools (ADS, EMPro, CST, HFSS, COMSOL); ability to lead technical investigations.
ADS, EMPro, CST, HFSS, COMSOL, network analyzers, spectrum analyzers, signal analyzers, Mentor, KiCad, C#, Python
2mo
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MTS Laser Physics Design & Development Engineer
Goleta or Fremont or Santa Barbara
$157k-$185k/yr OnsiteFull Time
7+ YOEMS or PhD in Electrical Engineering, Applied Physics, or Materials Science; 7+ years in laser diode design; strong modeling and simulation; DOE experience; proficient in Python/MATLAB; device characterization
Photon Design, COMSOL, Lumerical, MATLAB, Python, JMP
1mo
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Acoustic Data Intern (Fall 2026)
San Francisco, California, United States
$62/hr OnsiteFull Time, Internship
Pursuing a Master's or PhD in EE/CS/Math/Physics or related; experience with Python and C/C++; machine learning and acoustic simulation experience; familiarity with data pipelines, SQL/Spark, and visualization; strong communication.
Python, C/C++, SQL, Spark, Databricks, COMSOL, Treble, pyroomacoustics, SMAART
1mo
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Mechanical Architect - Rack, System and Enclosure Design
Oregon or Fremont or Clearwater
$130k-$160k/yr OnsiteFull Time
10+ YOEBachelor's degree in mechanical engineering, 10+ years designing racks/servers/enclosures, expertise in 3D CAD (SolidWorks, Creo, Inventor), FEA/CFD, thermal/structural analysis, and manufacturing processes.
CAE, SolidWorks, ANSYS, COMSOL, Creo, Inventor, PLM
2mo
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AI/ML Engineer
San Francisco, California, United States
$150k-$250k/yr OnsiteFull Time
4+ YOE4+ years building and deploying AI/ML models, 2+ years technical leadership, proficiency in Python and PyTorch/JAX/TensorFlow, experience with physics-informed/sequence/mesh data, familiarity with MLOps, and a bachelor's degree in CS/ME/EE or related.
Python, PyTorch, JAX, TensorFlow, CAE, CAD, PLM, Ansys, Abaqus, COMSOL, SolidWorks, NX
2w
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Lead Photonics Integrated Circuit Engineer
San Francisco or United States
HybridFull Time
PhD in physics/EE with deep expertise in quantum photonics, semiconductor process integration, PIC design/tape-out, modelling and characterization; experience with Cadence Virtuoso, verification flows and photonic simulation tools.
C++, Python, SKILL, TCL, HDL, MATLAB, Lumerical, COMSOL, MEEP, Cadence Virtuoso, Calibre, Hercules, ICV, Dracula, Primeyield, Verilog-A
1mo
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Staff Scientist PIC Laser
Pleasanton, California, United States
$163k-$214k/yr OnsiteFull Time
3+ YOEPhD in physics/EE or related, 3+ years experience with ultra-stable cavities, frequency combs, or atomic clocks; U.S. person status required; expertise in metrology, nonlinear optics, fiber/bulk optics; proficiency with phase noise measurement and simulation tools.
Lumerical, COMSOL, Python, MATLAB, Phase Noise Analyzer
3d
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Mechanical Engineer III
Hayward, California, United States
$95k-$140k/yr OnsiteFull Time
Hands-on mechanical design and 3D modeling for thermal assemblies, prototype build/test, manufacturing drawings with GD&T, supplier management, and mentoring junior engineers.
SolidWorks, Autodesk Inventor, Solid Edge, COMSOL, ANSYS, AutoCAD Electrical, SPC
1w
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Senior Pulsed Power Engineer
Fremont, California, United States
$170k-$210k/yr OnsiteFull Time
5+ YOE5+ years designing and operating pulsed power systems; expertise in high-voltage/current architectures, controls, diagnostics, PLC development, vacuum systems, circuit simulation, and data analysis.
SPICE, PSCAD, COMSOL Multiphysics, Python, MATLAB, SolidWorks, ANSYS, PLC
1w
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Senior Cell Modeling & Analytics Engineer
Broomfield or Burlingame
$140k-$175k/yr OnsiteFull Time
5+ YOE5+ years battery modeling and data analysis experience; deep knowledge of lithium/sodium-ion technologies; proficiency in Python; experience with thermal, ECM, and physics-based cell models; strong analytical and problem-solving skills.
Python, COMSOL, GT-AutoLion, PyBaMM, Simulink
2w
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Simulation Engineer - Avionics
South San Francisco, California, United States
OnsiteFull Time
Experience in structural and thermal simulation of electronic/electromechanical systems, FEA (linear/nonlinear), vibration/shock/fatigue analyses, thermal modeling, electronics packaging knowledge, and scripting with Python or MATLAB.
Abaqus, ANSYS Mechanical, Siemens Simcenter 3D/Nastran, Altair OptiStruct, COMSOL, Python, MATLAB, Zemax, FRED, LightTools, TracePro, CETOL, 3DCS, VisVSA
3mo
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Electrochemical Engineering Postdoctoral Scholar
Berkeley, California, United States
$7k-$8k/mo OnsiteFull Time
0+ YOEPhD in chemical engineering, mechanical engineering, applied physics, or closely related field; experience with mathematical modeling of electrochemical systems; HPC/AI/ML experience; strong communication; ability to collaborate and work independently.
Mathematical modeling, Multiphysics simulation, AI/ML, High Performance Computing, Comsol Multiphysics
5d
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ESSP Electrical Engineer - Experienced Professional
Phoenix or San Diego or Los Angeles or Sacramento
$89k-$151k/yr OnsiteFull Time
3+ YOEABET-accredited bachelor's in electrical/computer engineering required, 3–5 years power systems experience, knowledge of protective relaying, SCADA, and power system studies; EIT preferred.
AcSELerator Quickset (SEL-5030), AcSELerator Architect, GE EnerVista, ASPEN OneLiner, Gridscale X (CAPE), SKM-PTW, ETAP, RSCAD/RTDS, PSS/E, PSLF, PowerWorld, DSA Tools, Python Scripting, CDEGS, ATP-EMTP, PSCAD, POLARIS-EMF, COMSOL Multiphysics, TFlash, SEL RTAC, Orion, Cooper SMP, GE-D20, DNP, Modbus, Goose Messaging, IEC 61850
2mo
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Laser Postdoctoral Researcher - Advanced Photon Technologies
Livermore, California, United States
$123k/yr OnsiteFull Time
0+ YOEPhD in laser physics or related field; experience with high-energy solid-state lasers, ultrafast lasers, and experimental laser systems; ability to work in multi-disciplinary team; US citizenship for security clearance.
Zemax, Code V, OSLO, FRED, LightTools, ASAP, COMSOL, ANSYS, LabVIEW, Python, MATLAB
3w
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Lead Thermal Simulation Engineer
San Francisco, California, United States
$342k-$445k/yr OnsiteFull Time
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
1mo
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Lead Silicon Photonics Engineer
San Jose or Austin or San Mateo
$270k-$325k/yr OnsiteFull Time
3+ YOEPhD in photonics/physics/EE, 3+ years industry silicon photonics experience, 5+ years EM simulation experience, hands-on PDK/tape-out and lab validation experience, strong communication and problem-solving skills.
Lumerical, Ansys, COMSOL, PDKs, Python, MATLAB
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