Senior Propulsion Systems Engineer

Copenhagen, Capital Region, Denmark
Full Time

Orbex are looking for an experienced Propulsion Systems Engineer to play a key role in the development and optimization of propulsion systems for our innovative launch vehicle. You will work with our experienced team of experts to support the design, development, test and qualification of our liquid propulsion systems and supporting subsystems.


Orbex is a leading micro-launch company with our Prime vehicle being prepared to launch from our home spaceport, Space Hub Sutherland. We are well placed to be one of the first operational micro-launch companies in Europe with over €85m of project financing secured, a number of customers signed up, our launch licence application submitted, and backing from organisations including UKSA and ESA.

We are a rapidly growing company with staff located between our production and test facilities in Forres, Scotland and Copenhagen, Denmark. Working on cutting edge advances in rocket fuel technology, Prime’s carbon footprint is up to 96% lower than comparable vehicles, leading to innovations in propulsion and tank structures. A state-of-the-art re-flight system means we can recover and reuse our technology, and innovations in separation mechanisms mean we leave no debris in space.

Having developed in-house production capability, we can 3D print complex engines, produce full-scale carbon composite fuel tanks, and have avionics and software testing labs in both Scotland and Denmark. Based in Forres, you will be right in the heart of this fast-paced cutting-edge company, gaining a unique insight into what it takes to build a new launch vehicle for a buoyant commercial market.

Orbex is an Equal Opportunity Employer and is working towards a more diverse workforce in the aerospace industry.

The Position

We are looking to develop our systems engineering and systems simulation capability within our propulsion systems design team. The role will cover a broad range of activities including ownership of complete work streams to deliver inputs to the system level analysis and licensing activity as well as supporting internal test programs for all propulsion workstreams as well as supporting integration with the broader system


The position includes the following tasks and responsibilities:

  • Work in close collaboration with propulsion and mechanism design teams to ensure products meet mission assurance requirements.
  • Conduct analysis and simulations to optimize engine performance, efficiency, and reliability, ensuring compliance with mission requirements and safety standards.
  • Collaborate with cross-functional teams, including aerodynamics, structures, and avionics, to integrate propulsion systems into the overall vehicle design.
  • Collaborate with internal and external partners, suppliers, and regulatory authorities to ensure compliance with industry standards and regulations.

Key Qualifications and Experience

  • Proven experience in the interdisciplinary design, development, and testing of complex systems, preferably for aerospace or rocketry applications.
  • Knowledge of rocket propulsion principles, thermodynamics, combustion, and fluid dynamics.
  • Knowledge of systems engineering, such as V&V, requirements and interface management, understanding and application of the systems lifecycle
  • Knowledge of systems modelling and proficiency in relevant engineering software tools, especially tools like EcosimPro/ESPSS, MATLAB/Simulink
  • Experience with propulsion system components, such as pumps, valves, combustion chambers, and nozzles.
  • Application of industry standards (e.g. NASA, SMC, RCC, ECSS) to meet project requirements.

We need a flexible and dedicated mindset We are looking for experienced candidates who can demonstrate they get things done with a pragmatic attitude and reliable results. Your track record will be important.

For the right candidate we offer an excellent benefits package that includes the opportunity to earn an equity stake in the company plus relocation assistance where appropriate. You must be a European citizen, from a country that is a signatory to the MTCR convention. This is a compelling and rare career opportunity.


Orbex is a high-paced, startup culture where you will be encouraged to take assume responsibility for tasks and see them through.

It is imperative that you take initiative, communicate openly and can collaborate with technical and non-technical team members.

You must be able to thrive in an international, diverse and multicultural environment.


This role is based in Copenhagen at Orbex’s Danish propulsion engineering and manufacturing site with significant time expected at our test site in Faxe.

You will be spending time both at the factory and our nearby rocket engine testing site, with occasional travel to our main factory, test and launch sites in Scotland.

Copenhagen is one of Europe's most modern and aesthetically interesting cities. It is regarded as being one of the most liveable cities in the world, with a strong reputation for being clean, green and sustainable.

With a huge, active waterfront and a lively social scene, Copenhagen offers a wide range of social activities and leisure opportunities, all with a uniquely Scandinavian flair. Activities include cycling and sailing, and the centre of the city is famed for its cultural highlights.


You must be a UK or European citizen or from a country that is a signatory to the MTCR convention.


For the right candidate, we offer an excellent benefits package that includes:-

  • Competitive salary 
  • A significant equity stake in the company so you will really benefit from your hard work as the company grows and is successful. 
  • Our roles need to be on-site in Copenhagen due to the nature of the position, export controls and security, but we are happy to sponsor visas for you and your family and provide relocation assistance as required.


Apply for this position

Apply with Indeed
We've received your resume. Click here to update it.
Attach resume as .pdf, .doc, .docx, .odt, .txt, or .rtf (limit 5MB) or Paste resume

Paste your resume here or Attach resume file

Human Check*