Senior Power Electronics Engineer

About the role

Harmattan AI is seeking a senior individual contributor to own the analog power chain end-to-end for autonomous defense systems. You will lead power electronics design from MOSFET commutation simulation through PCB layout to lab validation, serving as the technical reference for the Lausanne engineering hub. This is a hands-on role focused on shipping hardware for propulsion, airframe, and embedded systems.

Responsibilities

• Lead motor-controller and DC-DC topology across fixed-wing, multicopter, and hybrid UXV platforms.
• Own the analog switching design including dead-time tuning, gate shaping, and thermal trade-offs.
• Deploy full-stack simulation using analytical loss budgeting, transient SPICE, and system-level modelling.
• Design three-phase inverters with integrated current sensing and protection.
• Lead schematic and layout for high-power-density PCBA with a focus on thermal, parasitics, and EMC.
• Drive pre-compliance, filter design, and root-cause debug under flight-representative loads.
• Take motor-controller PCBAs through revision discipline, DFM, and qualification.
• Execute bench characterization and reconcile results against simulation.

Required skills

• Power electronics
• Motor drives
• BLDC/PMSM controllers
• MOSFET commutation
• Gate-driver selection
• LTspice
• PLECS
• Simulink
• Altium
• EMI/EMC design
• PCB design

Nice to have

• GaN
• SiC
• Safety-critical design
• Applied control theory
• Defense
• Aerospace
• UAS programmes
• French

Qualifications

• 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

About the Company

Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. The company is backed by $200M in Series B funding and is focused on delivering mission-critical systems to allied forces.