Firestorm Labs - Democratize the fight with radically-affordable, mission-adaptable power for air, land, and sea. Backed by NEA.
About the role
Firestorm is hiring a Staff Mechanical Engineer, Propulsion who will own the propulsion systems that power our sUAS platforms—from small piston and heavy-fuel engines to the fuel, induction, ignition, and exhaust architectures that surround them. You will be responsible for engine selection, integration, calibration, and qualification across Firestorm’s fuel-based aircraft, translating mission endurance and performance requirements into producible powerplant solutions. Found on 1752vc Careers, the job board for startup and VC roles.
What they're looking for
- Develop and execute engine test plans on test stands and in-flight: power and torque mapping, BSFC characterization, endurance runs, vibration surveys, and altitude/temperature performance testing
- Design and analyze fuel systems—tanks, lines, pumps, filters, regulators, and fuel pressure management—across the full flight envelope, including negative-G and altitude effects
- Investigate and root-cause propulsion anomalies (RPM collapse, lean events, misfires, mechanical failures), develop structured multi-phase test plans and drive corrective action
- Specify and qualify propellers in coordination with aerodynamics, balancing thrust, efficiency, ground clearance, acoustic signature, and vibration
- Develop and maintain propulsion engineering documentation: interface control documents, test plans and reports, propulsion budgets (power, fuel burn, endurance), and configuration baselines
- Partner with thermal engineering on engine cooling, exhaust routing, and heat rejection
More about this role
Firestorm is hiring a Staff Mechanical Engineer, Propulsion who will own the propulsion systems that power our sUAS platforms—from small piston and heavy-fuel engines to the fuel, induction, ignition, and exhaust architectures that surround them. You will be responsible for engine selection, integration, calibration, and qualification across Firestorm’s fuel-based aircraft, translating mission endurance and performance requirements into producible powerplant solutions.
This is a deeply hands-on, full-time role. You will spend time at the test stand, in the engine cell, and on the flight line. You will design and instrument test articles, develop ECU calibrations, investigate failures, and partner with airframe and systems engineering to make sure our propulsion systems deliver power, endurance, and reliability across the full operational envelope.
What You'll Do
- Own development and integration of both small piston engines and micro turbojet propulsion systems, including engine selection, inlet/exhaust configuration, fuel and ignition architecture, thrust and power characterization, and ground/flight test campaigns tailored to each propulsion type.
- Develop and execute engine...
Browse similar: Startup jobs