Scientist Engineer - Remote sensing

Location: Sassenheim

Your (space) mission  As the Scientist-Engineer at cosine you develop advanced remote sensing solutions that translate physical phenomena into meaningful data about Earth and space. You work on cutting‑edge optical instruments, data processing, and calibration concepts that enable Earth observation, environmental monitoring, defence‑related remote sensing and planetary science missions. Your work directly contributes to understanding our planet and environment, while delivering tangible results for customers in the space and remote sensing domain.
Tasks & responsibilities  In this role you will:
Execute key parts of R&D projects, including analytical and numerical modelling, experimental setup development, and measurement campaigns
Analyse results, perform literature research, and translate findings into documented outputs that are traceable and reusable
Contribute to project coordination by keeping documentation, project pages, and internal stakeholders up to date
Support proposal development by writing technical sections and contributing to customer‑facing deliverables and presentations
Collaborate with project teams, customers, and external experts to ensure high‑quality execution and continuous progress

Your profile  We are looking for candidates with the following qualifications:
Academic degree in physics, astronomy, mathematics, computer science, or an engineering discipline such as mechanical, electrical, aerospace, or space engineering
Several years of experience in a relevant technical or R&D environment
Strong analytical skills, with the ability to solve complex problems and combine theoretical and practical approaches
Proven ability to deliver tangible technical outputs such as hardware, software, or scientific documentation
Effective communication skills, with the ability to document work clearly and engage professionally with colleagues and customers
A proactive, solution‑oriented mindset, with a strong focus on results, collaboration, and continuous learning
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
27 days of annual leave (based on full‑time employment)
Annual bonus based on personal and company performance
Hybrid working options, including the possibility to work partially from home
Company bicycle‑and fitness plan
A personal development budget
Initial one‑year contract, with the aim of long‑term collaboration
About cosine  Founded in 1998, cosine is a world‑leading developer of space instrumentation and measurement systems, making the invisible measurable and the complex actionable.
Its expertise spans High‑Energy Optics, including optics developed for ESA's future New Athena X‑ray observatory, as well as remote sensing solutions for Earth Observation and planetary science.
With over 25 years of experience and advanced cleanroom and assembly facilities across the Netherlands, Germany, and Italy, cosine brings deep scientific and engineering expertise to some of the most demanding missions in space and on Earth.
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.
cosine is committed to providing an inclusive and equal opportunities work environment where everyone can thrive. As a proud member of the Women in Aerospace community, we recognise the importance of diversity, inclusion, and equal opportunity in the workplace.

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