Battery Specialist, 100%

Dufour Aerospace is developing an eVTOL platform based on tilt-wing technology combined with a hybrid-electric propulsion approach. Dufour has refined its prototypes over hundreds of flights – both manned and unmanned. The combination of expertise in VTOL operation, aircraft design, and software development puts Dufour Aerospace at the forefront of Advanced Air Mobility.

About the role

Dufour is looking for experienced and enthusiastic domain experts to join us and contribute to our technology and product development journey. An exciting opportunity has arisen for a Battery Specialist to join our growing team in Switzerland. In this multidisciplinary role, you will be part of the propulsion team and work on our next-generation aircraft's onboard Energy Storage System (ESS).


  • Define requirements and verification/validation plans for critical components of the ESS
  • Coordinate with cell manufacturers, suppliers, and external test partners
  • Be the subject matter expert on Battery design and integration questions
  • Conduct trade-off studies on packaging efficiency, thermal, vibration, cycle life and impact on operations, and advance our design towards an optimal solution
  • Design and certify the Battery Management System (BMS) and refine SoC/SoH models
  • Work closely with the ESS mechanical engineering team
  • Ensure compliance with DO-311, DO-160, DO-178, DO-254, ARP4754, etc. (as applicable)


  • BSc or MSc Degree in a related field (e.g., Mechanical/Electrical Engineering, Power or Embedded Systems, Electro-Chemistry, Physics, etc.)
  • Prior experience in developing battery systems for high voltage electric powertrains
  • Good understanding of engineering fundamentals (fluid dynamics, heat transfer, thermodynamics)
  • Excellent organizational and communication skills


  • Prior experience with cell testing, modelling and failure analysis of lithium-based cells
  • Working with live circuits
  • Aviation background
  • Python

Work Location: Zurich or Visp, Switzerland.

Dufour Aerospace is an equal opportunity employer and welcomes applications from all qualified individuals regardless of race, sex, gender identity, disability, religion/belief, sexual orientation or age.

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With over 30 years of experience in Swiss commercial helicopter operations, we understand the real world requirements of VTOL aircraft. Our engineering team with years of aircraft construction experience is building aircrafts for rugged operations in harsh environments. Our patented combination of proven aerodynamic concepts with the latest technology makes our aircraft rock solid with unparalleled performance.