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Thermal Engineer Intern

The Exploration Company

Planegg, Bavaria, Germany internship

Posted: December 22, 2025

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Quick Summary

As a Thermal Engineer Intern, you will be responsible for supporting the thermal control system definition and justification of our Nyx orbital vehicle, working closely with our Thermal, CAD, Avionics and Propulsion engineers.

Job Description

Here at The Exploration Company, we are developing, producing, and operating Nyx, a modular and reusable space orbital vehicle that can eventually be refuelled in orbit and that can carry cargo - and potentially humans in the longer run.

We want you as a talented Thermal Engineer Intern to help us in our mission by contributing to the development, justification and validation of our vehicle. As Thermal Engineer intern, you will be in charge of supporting the thermal control system definition and justification. You will work closely with our Thermal, CAD, Avionics and Propulsion engineers to optimize the thermal control system and performance. You will be part of the Thermal Unit inside the Vehicle Design Team.

Key responsibilities

In your capacity as a Thermal Engineer Intern, your role will be continuously evolving, but day to day your duties will include:

• To build the thermal models of the vehicle, with the right level of complexity depending on the maturity and the goals of the study

• To perform the thermal analyses during the various mission phases (ground, under fairing, orbital phases, reentry)

• To support the team in the thermal control system architecture maturation and accommodation based on the analyses

• To support the team in the test campaign preparation (sourcing and procurement of components for the test bench, preparation of the test set-up, test predictions, etc...)

• To contribute to the creation and improvement of the thermal analysis tools

• To effectively communicate and provide recommendations through the analysis, preparation, and presentation of technical data

• To write technical documentation and participate to reviews of designed systems

What we would love to see from you

• Bachelor's degree in aerospace engineering or similar

• Good experience in Heat & Mass transfer and fluid dynamics

• Experience with thermal analysis tools (Thermal Desktop, ESATAN, Thermica)

• Experience with CFD (Fluent or equivalent) is a plus

• Experience with programming (Python, Matlab...) is a plus

• Fluent in English. German, French, Italian are an asset

• Ability to work equally well unsupervised or as part of a team

• Strong organizing and prioritization of tasks

• Positive and flexible attitude to get the job done

• Ability to communicate at all levels

• Demonstrates behavior consistent with The Exploration Company’s core values of Commitment, Innovation, Trust, Quality and Teamwork

Why you should join us!

What makes us special here at The Exploration Company and why we think you will enjoy working here is:  

• We’re Agile - we make decisions fast whilst keeping our goals and systems in mind 

• We’re Open and Collaborative - we are transparent about risks and obstacles, so that we can cooperate to overcome them  

• We have a lot of Fun - we refuel our energy knowing we are democratising space. It’s a wonderful and rare opportunity, are YOU up for the challenge?  

We'd love to hear from you if you wish to be a part of our journey. Please submit your CV now for immediate consideration and we will be in touch shortly. 
 
The Exploration Company is an equal opportunity employer and values diversity. We do not discriminate based on race, religion, colour, national origin, gender, sexual orientation, age, marital status or disability status. Relocation assistance is provided for those willing to relocate including visa sponsorship where applicable.

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