- Employment
- Full-time
About the role
About Poseidon Aerospace:
Poseidon Aerospace is reimagining how the world moves goods. We build and operate full-size autonomous cargo aircraft; Heron, a seaplane, and Egret, a STOL aircraft; each capable of carrying two tons of payload over a thousand nautical miles. From remote communities to contested logistics operations, our platforms unlock a new cost curve for air freight, making it faster, cheaper, and accessible anywhere it's needed. Headquartered in San Francisco with offices in Washington, DC and Maine, we're a small team building something consequential.
As a Propulsion Engineer at Poseidon Aerospace, you will lead the selection, integration, and validation of powerplants across our fleet, including MoGas, AvGas, and turboprop systems. Your focus will be delivering propulsion solutions that are reliable, efficient, and fully integrated into our aircraft.
Responsibilities:
Select, evaluate, and integrate piston and turboprop powerplants into aircraft platforms.
Define propulsion system architecture, including engine installation, mounts, cooling, exhaust, and fuel delivery.
Perform analysis and testing to validate performance, efficiency, and reliability under flight conditions.
Integrate propulsion with avionics, structures, and fuel systems, ensuring safety and certification compliance.
Work with cross-functional teams to take propulsion systems from concept to flight test.
Document propulsion design decisions, test results, and integration strategies.
Qualifications:
Strong background in aircraft propulsion with hands-on piston or turboprop integration experience.
Knowledge of MoGas, AvGas, and turboprop engines, including installation and maintenance.
Proficiency in CAD for powerplant installation and integration.
Experience validating engine systems through ground and flight testing.
Strong collaboration skills to align propulsion design across disciplines.
Even if you don’t meet every qualification listed, we encourage you to apply. At Poseidon Aerospace, we value diverse perspectives and are always looking for talented individuals with unconventional backgrounds.
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