At Orbital Paradigm, we design, develop, manufacture, and operate reusable orbital logistics systems. Our spacecraft perform multiple orbital mission profiles and return safely to Earth through hypersonic atmospheric reentry and landing with pinpoint accuracy for rapid refurbishment and reuse.

Role Description

We are looking for a Lead Propulsion Engineer to establish and lead the propulsion function at Orbital Paradigm, with responsibility for the architecture, design, development, integration, and testing of chemical propulsion systems for reusable orbital logistics vehicles.

The role focuses on HTP-based propulsion systems, including propulsion architecture, thrusters, tanks, feed systems, valves, regulators, pressurization systems, fluidic components, additive manufacturing, test hardware, and propulsion test campaigns. The engineer will work closely with systems, GNC, avionics, software, mechanical, thermal, manufacturing, AIT, quality, and program teams to develop reliable propulsion systems from early design through testing.





This is a technical and team leadership role requiring strong propulsion engineering judgment, direct experience with HTP systems, hands-on test experience, and the ability to build the processes, team, suppliers, and infrastructure required to deliver spacecraft propulsion capability.

Key Responsibilities
- Establish the company’s propulsion function, including technical processes, design practices, supplier interfaces, test logic, team structure, and development workflows.
- Define propulsion system architecture for reusable spacecraft, including thrusters, tanks, feed systems, pressurization systems, valves, regulators, lines, and interfaces.
- Lead design and development of HTP-based chemical propulsion systems from early concept through detailed design, manufacturing, integration, and testing.
- Perform propulsion system sizing, trade studies, performance analysis, pressure drop analysis, thermal assessments, and operational sce

📌 Propulsion - Lead Propulsion Engineer (Madrid)
🏢 Orbital Paradigm
📍 Madrid