Current openings

Lead Electric Motor Design Engineer 2017-07-10T16:59:39+00:00

Lead Electric Motor Design Engineer

Zunum Aero has an immediate opening for a highly experienced electric motor design engineer for development of hybrid-electric powertrain for regional aircraft. Candidate must have at least 15 years of experience with different types of high efficiency motors, preferably in aviation, or with high-power mobile applications.

Zunum is an emerging leader in hybrid-electric propulsion for aircraft; this position is a unique opportunity to work with a small, dynamic team of dedicated engineers on the next generation of aircraft propulsion. Position is full time, and located in Kirkland, Washington or northern Illinois; compensation DOE.

Roles and Responsibilities:

Tasks include, but are not limited to:

  • Lead the development activities of an Electric Motor integrated with a power converter and a propulsor for an electrically driven quiet ducted fan from initial motor design through qualification and certification
  • Lead trade studies for optimum motor topology for torque production and fan speed requirements
  • Architect and oversee the sizing, design, development and integration of components and subsystem comprising the electrical power train
  • Maintain a mechanically sound design including the rotor dynamics stability, power conversion effects on the bearing system and on the stator windings and insulation system
  • Develop the motor cooling approach and oversee the implementation and testing
  • Oversee the development of specifications of component and subsystems
  • Evaluate and select components and subsystems suppliers
  • Develop the engineering plan and work with Project Engineering for flawless execution
  • Be the main presenter and advocate for the design and development in all program reviews (PDR, CDR, Qual Review, etc).


  • Candidate is required to have detailed hands on experience in the design and development high efficiency 300-500 kW motors.
  • Detailed knowledge of the electromagnetic design rules and limitations of Axial Flux, Radial Flux and Hallbach Permanent Magnet Motor technologies. Experience with high-speed machines.
  • Trade motor architectures and topologies with particular emphasis on high-efficiency low-torque ripple motor applications
  • Detained electromagnetic design capability with emphasis on high efficiency low loss materials and topologies.
  • Detailed knowledge of power dissipation calculations and device temperature rise.
  • Knowledge of motor torque and speed control algorithms utilizing Field Oriented Control techniques
  • Fluency with simulation tools (Matlab Simulink, Pspice, Simplorer or equivalent), power analyzers, and advanced testing and development tools such as dSpace and National Instruments LabView
  • Strong technical writing, presenting, and team leadership skills


  • M.S. or higher in electrical engineering with 10 years of relevant experience
  • B.S. in electrical engineering with 15 years of relevant experience
  • Technical contributions to the field including patents and publications

To be considered for this position, please send a resume or CV to with the position name in the subject line.