Propulsion, Transmission Engineer

• Los Angeles
• On-site
• Yearly salary: $124,000 - $155,000

Job Description

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

As 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:

• Design and develop gearbox and mechanical power transmission systems for electric and hybrid-electric propulsion.
• Perform sizing, strength, thermal, and NVH (noise, vibration, harshness) analyses of transmission components.
• Work closely with suppliers and manufacturing partners to guide component development, material selection, and manufacturing processes.
• Define requirements, specifications, and interface documents for transmission subsystems.
• Lead and support testing and validation efforts including test rig development, instrumentation, and data analysis.
• Collaborate with propulsion integration teams to ensure seamless integration into the aircraft.
• Support certification and compliance activities in alignment with aviation regulatory bodies (e.g., EASA, FAA).

Skills & Requirements

You'll Bring These Qualifications:

• 3+ years of experience in mechanical transmission design, preferably in aerospace or automotive sectors.
• Hands-on experience in testing and validation of rotating machinery.
• Proficiency in CAD tools (e.g., CATIA, Siemens NX) and CAE tools for structural and thermal analysis.
• Experience with gear design, bearings, lubrication systems, and housing structures.

These Qualifications Would Be Nice to Have:

• Understanding of certification requirements (EASA CS-23/25 or FAA FAR Part 23/25).
• Experience with electric or hybrid propulsion systems.

Education

• Bachelor’s or Master’s degree in Mechanical Engineering, Aerospace Engineering, or a related field.