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Principal Propulsion Engineer, Engine Systems & Test

Long Beach (CA)💼 Full-time💰 $185,000–$185,000🗓 2026-07-02 → 2026-07-31

Core

Designing and delivering highly performant, manufacturable liquid-propellant rocket engines for the Terran R vehicle, managing system architecture, CONOPS trades, and interfaces to optimize for vehicle performance.

Role type

Principal Propulsion Engineer (Engine Systems & Test)

Builds

Liquid-propellant rocket engines (e.g., Aeon R) for orbital launch vehicles

Domain

Aerospace propulsion, rocket engine development, fluid mechanics, thermodynamics

Deliverable

production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work

Required skills

fluid mechanics, thermodynamics, liquid-propellant rocket engine design, complex engineering system development, test environment management, system architecture, CONOPS development, interface management, requirement negotiation, simulation and analysis, tool development

Preferred skills

fluid components (valves, instrumentation), engine subsystems (combustion devices, turbomachinery)

Technologies

liquid-propellant rocket engines, simulation tools, test equipment

Responsibilities

Drive engine system architecture and CONOPS trades, manage engine interfaces and negotiate requirements, support engine system development, analysis, simulation, and testing, mentor team members, lead collaborative projects with minimal oversight

Seniority

Principal, hands-on IC with mentorship responsibilities

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