Motor Drive and Power Electronics Engineer

Dexmate; Fremont (CA); On-site; USD 110,000 - 170,000; Full time

Job summary

Dexmate in Fremont, CA is seeking a Motor Drive and Power Electronics Engineer to own the inverter hardware powering our actuators. You will develop motor-drive circuits and PCBs from architecture through bench bring-up to production release, collaborating with motor and embedded-controls engineers to meet performance targets.

Responsibilities include defining inverter architecture, designing power stages, sensing, and protection circuits; bringing up hardware with firmware; and preparing

Qualifications

• Designed and brought up a BLDC, PMSM or servo inverter or motor-drive product on real hardware.
• Strong power-electronics fundamentals, including switching devices, gate drive, current measurement, PCB layout and protection.
• Hands-on schematic and PCB experience with an industry-standard EDA tool, plus oscilloscope, current-probe and power-analysis skills.
• Working knowledge of field-oriented control and motor characteristics to co-design hardware with firmware.

Responsibilities

• Define inverter architecture and electrical operating limits with the actuator lead and robot power-system team.
• Design power stages, gate drivers, DC-link components, current and voltage sensing, encoder interfaces and hardware protection circuits.
• Own schematics, PCB layout or layout oversight, component selection and design reviews, including switching loops, grounding, isolation where needed and thermal constraints.
• Bring up hardware with embedded controls engineers; verify switching behavior, sensing accuracy, losses and safe responses to electrical faults.
• Develop bench characterization for efficiency, current capability and thermal performance; apply EMI/EMC principles and support pre-compliance testing.
• Prepare production documentation and test requirements; work with manufacturers and electrical test engineers to resolve failures and improve manufacturability.

Skills

Power electronics fundamentals

Motor-drive design

BLDC/PMSM inverter experience

PCB layout

Control theory basics

Education

Bachelor's degree in Electrical Engineering

Tools

Oscilloscope

Current probe

Power-analysis software

Job description

About Dexmate

Dexmate is building the foundation for physical AI — combining a new generation of robots with a universal Physical AI OS, making robots as easy to build and deploy as software. Today, robotics is fragmented, slow, and closed: most builders are forced to reinvent the same stack again and again, and most ideas never make it past the prototype stage. We exist to change that. Our mission is to democratize robotics by lowering the barrier to entry, delivering a plug-and-play platform for developers, researchers, and enterprises, and cultivating an open ecosystem that accelerates the evolution of physical AI.

If you want to help shape the next layer of human capability — and believe the future of robotics should be built together, not in isolation — we’d love to build it with you.

The Role

We are looking for a Motor Drive and Power Electronics Engineer to own the inverter hardware that powers Dexmate actuators. You will develop motor-drive circuits and PCBs from architecture through bench bring-up and production release. You will work closely with motor and embedded controls engineers so electrical limits, sensing and protection support the actuator’s required performance.

Responsibilities

• Define inverter architecture and electrical operating limits with the actuator lead, motor designer and robot power-system team.

• Design power stages, gate drivers, DC-link components, current and voltage sensing, encoder interfaces and hardware protection circuits.

• Own schematics, PCB layout or layout oversight, component selection and design reviews, including switching loops, grounding, isolation where needed and thermal constraints.

• Bring up hardware with embedded controls engineers; verify switching behavior, sensing accuracy, losses and safe responses to electrical faults.

• Develop bench characterization for efficiency, current capability and thermal performance; apply EMI/EMC principles and support pre-compliance testing.

• Prepare production documentation and test requirements; work with manufacturers and electrical test engineers to resolve failures and improve manufacturability.

Minimum Qualifications

• Designed and brought up a BLDC, PMSM or servo inverter or motor-drive product on real hardware.

• Strong power-electronics fundamentals, including switching devices, gate drive, current measurement, PCB layout and protection.

• Hands-on schematic and PCB experience with an industry-standard EDA tool, and strong oscilloscope, current-probe and power-analysis skills.

• Working knowledge of field-oriented control and motor characteristics sufficient to co-design hardware and debug with firmware engineers.

Preferred Qualifications

• Experience with high-density robot or servo drives, thermally constrained layouts and production release.

• EMI/EMC pre-compliance, fault-injection testing or functional-safety-related hardware development.

• Python-based test automation or familiarity with motor-control firmware at the hardware interface.