Propulsion Engineer

The role

You will lead the propulsion team's development from assembly to a calibrated, instrumented powerplant. This hands-on role involves engine assembly, design, tuning, and qualification via testing on a test stand.

What you will do

• Calibrate the engine across the full aviation operating envelope
• Run the engine test program on an instrumented test stand
• Bring up the integrated engine from assembled hardware through verification
• Operate test instrumentation and DAQ
• Translate and present findings to validate requirements and drive design changes
• Refine and develop break-in, operating, inspection, and maintenance procedures

Required qualifications

• Hands-on experience tuning, calibrating, and bringing up EFI piston engine systems
• Experience qualifying or validating engines on a test cell, dyno, or test stand
• Practical knowledge of aviation and automotive fuels (AvGas, MoGas)
• Comfortable working at the bench and on the aircraft
• Strong collaboration skills

Nice to have

• Aviation, motorsport, engine-swap, or standalone-ECU backgrounds
• Experience through ground and flight testing

Benefits

• Competitive salary and meaningful early-stage equity
• Relocation support if applicable
• Employee Health Benefit Plans
• 6% Retirement matching
• Flexible PTO
• Free lunches, snacks, and a stocked fridge at our offices
• AI tools and subscriptions

About the company

Poseidon Aerospace builds and operates full-size autonomous cargo aircraft. The company is headquartered in the San Francisco Bay Area with locations in Washington DC, Oregon, and Maine.