By joining Alpha Impulsion as a hybrid propulsion intern in the Naples office, you will participate in the development of GARNET, Alpha Impulsion's large scale autophage rocket engine. This internship is scheduled to start in late 2026 or early 2027.

Reporting to the Propulsion Lead, you will contribute to the mechanical, thermal & fluidic design of GARNET hybrid propulsion system.

You will embark on a young project, with the opportunity to build it from start to qualification and exploitation.

Your first project here

Alpha Impulsion is developing a medium-scale research engine and propulsion test bench as part of a major contract in Italy. This activity will support the development of a game-changing rocket engine able to disrupt the way launchers are built, reaching performance up to twice that of current propulsion technologies. You will embark on a new project, with the opportunity to build it from start to qualification and exploitation.

Your responsibilities

As part of your missions, you will be entrusted with the following responsibilities:

- Contributing to the combustion chamber mechanical design.

- Contributing to the fluid line and injection plates design, following inputs from CFD analyses from laboratory partners.





- Contributes to the thermal design of the combustion chamber, including the use of thermal protection, & methods of regenerative cooling.

- Defining the combustion chamber test plan, from elementary testing to ignition testing of the full configuration.

- Gaining hands-on experience by participating in system’s preliminary tests and integration towards firing tests.

What we would appreciate most

Required education, experience and skills

- You are in the final year of a Master’s degree or engineering school, with a strong academic background and knowledge of hybrid rocket engines and fluid dynamics, and you are eager to apply your skills to real-world engineering challenges.

- Creative, curious, and autonomous, you take pride in seeing the tangible results of your work.

- You have practical experience in the design of rocket propulsion system components, with a particular focus on fluid dynamics and thermal design.

- Comfortable with a startup environment and Agile frameworks.

- Professional English required.

Would be a plus

- Italian and/or French speaking.

If you thrive on challenge, take on a new one and join the crew.

📌 Hybrid Propulsion intern (Napoli)
🏢 Alpha Impulsion
📍 Napoli