Power Electronics Engineer

Heart Aerospace is an electric aviation company focused on electrifying regional air travel through the development of battery-electric aircraft. The company is designing the ES-30, a 30-seat electric regional aircraft intended to serve short-haul routes with zero CO2 emissions, offering airlines a fundamentally lower-cost operating model compared to conventional turboprop or jet aircraft. Heart Aerospace also operates the X1 experimental aircraft as part of its development program to validate core technologies ahead of the ES-30's entry into service. The company's mission is centered on decarbonizing aviation, starting with regional routes where electric propulsion is most technically and economically viable. By targeting short-distance air travel, Heart Aerospace aims to eliminate direct carbon emissions on these segments while making regional connectivity more affordable for both operators and passengers. The company has secured investment from leading venture capital firms aligned with electrification and decarbonization goals, as well as strategic investments from major airlines that have also signed on as early customers. Heart Aerospace was founded in Sweden and has established a presence in the United States, with its listed address in Torrance, California. The company represents a new generation of aerospace manufacturers betting that advances in battery technology and electric drivetrains can transform commercial aviation, beginning with the regional segment where routes are short enough to make today's battery energy density practical.

At Heart Aerospace we develop the ES-30, a regional hybrid-electric airplane with a capacity of 30 passengers, an electric zero-emission range of 200 km and an extended hybrid range of 400 km. Heart is targeting type certification of the ES-30 by the end of the decade.

Your mission

We are seeking a highly motivated Power Electronics Engineer to join our Propulsion team. You will lead the design and integration of the hybrid propulsion, including but not limited to the inverters, motors, HV cables, with batteries, and in parallel with Turbomachinery. You will interface across mechanical, thermal, electrical, and flight control systems to deliver a fully integrated and certifiable hybrid Electric Propulsion Unit (EPU).

Key responsibilities include but are not limited to:

• This role is a Responsible Engineer (RE) who focuses on the integration of power electronics and high voltage electrical systems into our hybrid aircraft.
• Full ownership over design, fabrication, commissioning, and certification of the hybrid propulsion system.
• Lead and execute system-level tests, such as motor and propeller test stands.
• Collaborate with suppliers to ensure delivery of integrated, certifiable subsystems.
• Model the electrical and power electronics systems in to our high fidelity Digital Twin for optimization of our hybrid mission profile.
• Perform topology selection trade studies.

You'll Bring These Qualifications:

• 2+ years of professional experience working with power electronics components.
• Strong experience in high voltage power electronics design (+800V) including AC/DC inverters, and DC/DC converters.
• Strong understanding of HV filter design, grounding analysis, coordination of protective devices.
• Hands-on experience with integration of propulsion and/or powertrain test stands, including instrumentation, controls, and mechanical assembly.
• Extensive experience with Altium/cadence/similar), circuit analysis (spice), gate driver design, and lab work (common tools like oscilloscopes, network analyzers)
• Experience with C/C++, Python, Matlab/Simulink, or PLECS.
• Strong knowledge of Avionics communication, ARINC, CAN, and Ethernet.
• Strong understanding of Microcontrollers, Multicore processors, Firmware Development, and digital power conversion.

These Qualifications Would Be Nice to Have:

• Understanding of certification requirements (EASA CS-23/25 or FAA FAR Part 23/25).
• Knowledge of hardware design and airworthiness DO-178C, DO-254, DO-160.
• Demonstrated leadership qualities through cross-functional teamwork on challenging problems.
• Working knowledge of EMI/EMC, underlying physics and specifications, along with best practices for design, and strategies.
• Hands on experience with Matlab/Simulink Auto Code Generation.

Education

• Master’s or PhD degree in Electrical Engineering with focus on Power Electronics, or Power Systems.