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 missionAs a Propulsion Engineer focused on Transmission, you will be essential in designing, developing, and integrating the mechanical power transmission system within our hybrid-electric propulsion framework. You will collaborate closely with teams from various disciplines, including electric propulsion, turbomachinery, software, and structural engineering, to create robust, lightweight, and high-efficiency transmission solutions. This role demands a high level of technical expertise in mechanical design and a strong understanding of propulsion systems. Key responsibilities include but are not limited to:<ul><li>Design and develop gearbox and mechanical power transmission systems for electric and hybrid-electric propulsion.</li><li>Perform sizing, strength, thermal, and NVH (noise, vibration, harshness) analyses of transmission components.</li><li>Work closely with suppliers and manufacturing partners to guide component development, material selection, and manufacturing processes.</li><li>Define requirements, specifications, and interface documents for transmission subsystems.</li><li>Lead and support testing and validation efforts including test rig development, instrumentation, and data analysis.</li><li>Collaborate with propulsion integration teams to ensure seamless integration into the aircraft.</li><li>Support certification and compliance activities in alignment with aviation regulatory bodies (e.g., EASA, FAA).</li></ul> You'll Bring These Qualifications:<ul><li>3+ years of experience in mechanical transmission design, preferably in aerospace or automotive sectors.</li><li>Hands-on experience in testing and validation of rotating machinery.</li><li>Proficiency in CAD tools (e.g., CATIA, Siemens NX) and CAE tools for structural and thermal analysis.</li><li>Experience with gear design, bearings, lubrication systems, and housing structures. </li></ul>These Qualifications Would Be Nice to Have:<ul><li>Understanding of certification requirements (EASA CS-23/25 or FAA FAR Part 23/25). </li><li>Experience with electric or hybrid propulsion systems.</li></ul>Education<ul><li>Bachelor’s or Master’s degree in Mechanical Engineering, Aerospace Engineering, or a related field. </li></ul>

Heart’s mission is to create the fastest, most affordable and sustainable transportation for regional travel to every corner of the world. Their first aircraft is the ES-19, a nineteen-passenger airliner with an operating range of 400 km. Heart's goal is to have the aircraft certified for commercial operation by 2025.

Propulsion, Transmission Engineer

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Heart Aerospace

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