Senior Power Electronics Engineer (Defense)

TL;DR

Senior Power Electronics Engineer (Defense): Designing and owning the analog power chain for autonomous defense systems (UXV platforms) with an accent on motor controllers, gate drivers, and DC-DC stages. Focus on MOSFET commutation simulation, high-power-density PCB layout, and lab validation to optimize flight time and reliability.

Location: On-site in Lausanne, Switzerland

Company

hirify.global is a next-generation defense prime building autonomous and scalable defense systems for allied forces.

What you will do

• Lead motor-controller and DC-DC topology architecture across fixed-wing, multicopter, and hybrid UXV platforms.
• Own analog switching design, including dead-time tuning, gate shaping, and switching-loss vs EMI vs thermal trade-offs.
• Design three-phase inverters with integrated current sensing and FOC-aware hardware interfaces for BLDC drives.
• Lead high-power-density PCBA schematic and layout in Altium or KiCad, ensuring EMC and thermal efficiency.
• Execute bench characterization and lab validation using power analyzers, oscilloscopes, and thermal imaging.
• Partner with embedded and propulsion teams on FOC tuning and hardware/firmware compensation boundaries.

Requirements

• MSc or PhD in Electrical Engineering, Power Electronics, or equivalent.
• 5+ years of hands-on R&D experience on motor drives, BLDC/PMSM controllers, or high-power-density power electronics.
• Proven ownership of at least one motor-controller PCBA shipped from prototype through production.
• Fluency in simulation tools (LTspice, PLECS, or Simulink) and PCB design (Altium).
• Strong intuition and experience in EMI / EMC design and debug.
• English: Fluent (C1) required as the working language.

Nice to have

• Experience with GaN / SiC technologies.
• Exposure to safety-critical design.
• Applied control theory implemented in hardware.
• Experience in defense, aerospace, or UAS programmes.