Electro-Permanent Magnet Systems Engineer

GRAM; El Segundo (CA); On-site; USD 160,000 - 200,000; Full time

Job summary

GRAM in El Segundo is seeking a magnetic systems engineer to own the electro-permanent magnet (EPM) device from architecture to life testing. You will define magnetic requirements, verify performance, and assure manufacturability with energy, thermal, and reliability considerations.

You will work on magnetic circuits, switching coils, sensors, and drivers, then release designs with drawings, specs, and qualification procedures while collaborating with a hands-on, fast-moving team.

Qualifications

• Bachelor’s degree or equivalent practical experience.
• Designed, built, and characterized a permanent-magnet circuit or comparable nonlinear magnetic device.
• Built a nonlinear magnetic model using measured or supplier B‑H data and compared to hardware measurements.
• Hands‑on experience with gaussmeters or Hall probes, oscilloscopes, current probes, programmable power equipment, load cells, and Python or MATLAB.

Responsibilities

• Translate machine load cases into EPM holding-force, shear, air-gap, switching-time, energy, thermal, residual-flux, mass, and lifetime requirements.
• Design magnetic circuits, pole pieces, permanent-magnet arrangements, switching coils, flux returns, sensors, mechanical interfaces, and drive-electronics requirements.
• Use analytical reluctance models and finite-element analysis to predict flux density, saturation, leakage, force, demagnetization risk, eddy-current effects, and temperature sensitivity.
• Build fixtures that measure normal and shear force, flux, current and voltage waveforms, switching repeatability, release behavior, and performance across materials and gaps.
• Run cycling, shock, vibration, thermal, contamination, and off-nominal tests; isolate magnetic, electrical, mechanical, and interface failure modes.
• Release EPM designs through drawings, material specs, magnetization controls, supplier qualification, assembly procedures, and acceptance tests.

Skills

Gaussmeters

Hall probes

Oscilloscopes

Current probes

Programmable power equipment

Load cells

Python

MATLAB

Education

Bachelor’s degree in electrical, mechanical, aerospace, applied physics, or related field

Tools

Ansys Maxwell

COMSOL

JMAG

FEMM

Python

MATLAB

Job description

GRAM in El Segundo is seeking a magnetic systems engineer to own the electro-permanent magnet (EPM) device from architecture to life testing. You will define magnetic requirements, verify performance, and assure manufacturability with energy, thermal, and reliability considerations.

You will work on magnetic circuits, switching coils, sensors, and drivers, then release designs with drawings, specs, and qualification procedures while collaborating with a hands-on, fast-moving team.