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Scientist Engineer – silicon pore optics

cosine GmbH
Berlin

Jetzt bewerben

Details zur Stelle

Vollzeit
4.700 € – 5.500 € pro Monat
vor 10 Tagen

Qualifikationen

Doktorat
Datenanalyse
Master
Systems Engineering
Physik
Python

Vollständige Stellenbeschreibung

You play a key role in supporting the development of ESA’s NewAthena space telescope, contributing directly to technologies that will enable the next generation of space exploration.

Firmenname

cosine GmbH
Albert-Einstein-Str. 14
12489 Berlin
Corporate Website

Arbeitsort

Berlin

Ansprechpartner

HR
Tel. +31 71 528 4962
E-Mail: [email protected]

Veröffentlicht

28. Mai 2026

Your (space) mission

As a Scientist Engineer at cosine, you will join a small, highly skilled team in Berlin, working at the forefront of space instrumentation and high-tech sensing solutions.

You operate in a unique environment: part startup, part established space-tech company. Backed by cosine’s strong foundation, you work with the agility and ownership of a young and growing team, where your ideas directly influence what gets built, tested and delivered.

The team develops and manufactures innovative X-ray optics based on silicon pore optics technology, with applications ranging from space science to medicine, materials research and the semiconductor industry.
Your work takes place both in the office and at the BESSY II synchrotron facility in Berlin Adlershof, where you design and execute experiments that are critical to the development and validation of advanced optical systems using soft X-rays. In addition, you contribute to mechanical work, process optimisation, equipment maintenance and technical documentation.

You play a key role in supporting the development of ESA’s NewAthena space telescope, contributing directly to technologies that will enable the next generation of space exploration.

As synchrotrons operate during evenings and weekends, some flexibility in working hours is expected. Occasional travel to our headquarters in the Netherlands or to Spain to visit the ALBA synchrotron, where we also operate a beamline, may also be required.

Tasks & responsibilities

In this role you will:
Design, build and execute synchrotron experiments to support the development of advanced optical systems
Analyse and interpret experimental data to optimise performance and validate results
Perform hands-on mechanical work related to measurement and production processes
Regular assembly of X-ray optics using synchrotron radiation, supported by in-vacuum mechanical setups and various software tools
Work with and maintain complex experimental setups, instrumentation and measurement systems, particularly beamlines and sub-assemblies
Drive continuous improvement initiatives, solve technical challenges and collaborate closely with project managers, scientists and engineers in our international team

Your profile

We are looking for candidates with the following qualifications:
MSc or PhD in Physics, Engineering or a related field (e.g. mechanical engineering, engineering physics, accelerator physics, photonics)
Hands-on experience with experimental physics (e.g. optics, X-ray, synchrotron or similar systems)
Comfortable working at the intersection of science and engineering
Experience with data analysis and programming (e.g. Python or similar)
Experience in a complex, tech-driven environment is considered a plus
Proactive and pragmatic mindset with a hands-on attitude
Fluent in English; German is a plus
Willingness to work flexible hours, including evenings and occasional weekends
Candidates already based in the Berlin area are strongly preferred

What we offer
At cosine, we highly value our employees, and we will support your professional and personal development. We also provide our employees with:

A unique, international working environment at the intersection of physics and engineering
The opportunity to deliver end-to-end solutions in autonomous project teams, in close collaboration with customers
A competitive salary in the range of €4,700 and €5,500
Annual bonus based on personal and company performance
27 days of annual leave (based on full-time employment)
Lunch vouchers and Sachbezug20 gift card
Berlin public transport compensation of €39/month
Hybrid working options, including the possibility to work partly from home
A personal development budge

About cosine

cosine transforms high-stake measurement challenges into scalable, real-world solutions.

What sets cosine apart is its integrated approach, linking insight, science, and engineering to deliver solutions that work in the real world, enable science and make an impact for humanity. Backed by over 25 years of heritage, expertise and deep systems thinking, cosine guides partners from defining the real need to deploying reliable, precision-built technologies that enable progress across space and planet.

What makes cosine a unique place to work is that your work goes end-to-end—from concept and design to building, testing, and delivering hardware that actually flies in space. You work in small, highly skilled teams where you have real ownership and impact, alongside experts in optics, physics, nanofabrication, and systems engineering.

Join out innovative and highly skilled team. We are looking forward to hear from you.

Jetzt bewerben

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