Stealthrocketrystartup

Propellant Lab Technician

Germany full-time Mid Salary not listed
full-time Mid level Technology & IT Curated
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About the role

We are looking for a Propellant Lab Technician to support the development, characterisation, and improvement of the solid propellants used in our propulsion systems. Working closely with the Lead Propellant Manager and wider propulsion team, you will prepare materials, operate laboratory equipment, conduct experiments, and maintain accurate technical records.
This is a hands-on role suited to someone who is methodical, safety-conscious, and comfortable working with chemicals, laboratory equipment, and practical processes. You will contribute directly to the development of repeatable propellant formulations and the scale-up of laboratory work toward propulsion hardware.
About us
We’re a Germany-based rocketry startup currently in stealth mode, scaling up rapidly to meet the demand for high-performance, reliable, and scalable solid propulsion technologies for space and defense applications.
We are already launching suborbital and ballistic rockets on a regular basis, generating significant revenue and applying our knowledge toward the development of an orbital rocket.
We are working hard to build something truly spectacular.
To thrive here you will need to be comfortable working at pace, with the autonomy to make decisions and execute on them quickly. If you’re excited by hard technical challenges and want a role where you will make a real difference each day to the future of the company, we may be the place for you.
At our company, job titles and career progression are earned, not determined by years of experience alone. They reflect the responsibility you take on and the dedication you bring to each project. If you’re ready to rise to the challenge, we’d love to hear from you.
Key responsibilities
Prepare chemicals, raw materials, samples, equipment, and test setups for propellant experiments.

Support formulation, mixing, casting, curing, sample preparation, and laboratory-scale processing activities.

Operate and maintain laboratory equipment used for propellant preparation and characterisation.

Conduct measurements and record results accurately, maintaining clear and traceable laboratory records.

Support investigations into unexpected results, process variation, material issues, and non-conformances.

Maintain laboratory organisation, stock levels, equipment readiness, waste handling, and safety standards.

What we are looking for
Experience working in a laboratory, chemical-processing, manufacturing, or other practical technical environment.

A technical qualification or practical training in chemistry, chemical engineering, materials science, laboratory science, or a related field.

A careful and methodical approach to weighing, measurement, sample handling, documentation, and process control.

Practical understanding of laboratory safety, chemical handling, personal protective equipment, and safe working procedures.

Strong attention to detail and the ability to follow written procedures consistently.

A collaborative, reliable, and proactive approach to working with engineers, scientists, technicians, and production teams.

Desirable experience
Solid rocket propellants, energetic materials, polymers, binders, oxidisers, metallic fuels, or catalysts.

Laboratory-scale mixing, casting, curing, grinding, sample preparation, or chemical processing.

Propellant characterisation, burn-rate measurement, thermal analysis, rheology, mechanical testing, or compatibility testing.

Experience with laboratory equipment, calibration, maintenance, or troubleshooting.

Chemical inventory management, incoming-material inspection, supplier samples, or non-conformance investigations.

Experience working with hazardous chemicals, explosives, regulated materials, or formal laboratory quality systems.

Benefits and important information:
We offer top-decile compensation packages, bonuses and meaningful equity, to attract exceptional aerospace talent.

Every employee is awarded stock options in the company, you will directly benefit from your own hard work and success.

Comprehensive relocation support including flights, shipping and visas.

Lunch, dinner and drinks provided everyday

Free access to shared company housing

Please note, we are a fast paced, hyper-scaling startup. You will need to be comfortable working extended hours with high levels of autonomy, ownership, and flexibility, with contracts structured around a 48-hour working week.
We are committed to building an equitable and inclusive workplace where everyone feels valued, has equal access to opportunity, and can thrive. We welcome different perspectives, backgrounds, and experiences—and believe our differences make us stronger.

Please submit applications in English
 
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Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Mid
Technology & IT Writing Propellant Lab Technician Technology Mid level

Likely questions

  1. Tell us about work you have done that is close to the Propellant Lab Technician role.
  2. How would you approach your first 30 days at Stealthrocketrystartup?
  3. Which of Writing, Propellant and Lab have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with Writing, Propellant and Lab.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Propellant Lab Technician role because I can bring practical experience in Writing, Propellant and Lab, learn the team quickly, and contribute to the outcomes Stealthrocketrystartup needs from this hire.

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