Scientist Air Quality & Optical signal modelling | Utrecht

The Expertise Group utilizes atmospheric transport models (LOTOS-EUROS and DALES), which make it possible to model and monitor the composition, origin and concentrations of a wide range of substances in the air – such as particulate matter, reactive nitrogen species, ozone, etc. – anywhere in the world. In addition, we use satellite- and ground-based observations for evaluation and assimilation to improve our models. 

The interplay of atmospheric composition to transmitted and received signals is a crucial element, which will be the focus of your work. AER also has the expertise to assist governments, policymakers and decision-makers in the private sector when it comes to transitioning to a more sustainable, cleaner and socioeconomically more desirable economy. Our expertise is also applied in other parts of TNO where atmospheric propagation is important e.g. free-space optical communication and infrared remote sensing. Our areas of focus and hence our staff are at the heart of debate in society.

We are looking for a (post-doctoral) researcher with expertise in radiative transfer modelling, remote-sensing, chemical transport modelling and/or atmospheric science to join our team at TNO AER. We have experienced growing interest for predicting the atmospheric conditions for optical applications in the defense domain due to geopolitical and technological developments. The successful candidate will also work on the application and interpretation of satellite data (e.g. SPEXone, EarthCARE, 3MI), which may be used either directly or in combination with our atmospheric chemistry transport model LOTOS-EUROS.

More information about the research-group can be found here.

You are passionate about working with models and information systems. You have a good understanding of physical processes, methodologies behind both AQ models and remote-sensing observations, the limitations of both, and have a proven affinity with modelling optical characteristics. Moreover, you are eager to contribute to solving societal relevant environmental problems, just like the rest of team. You are not afraid to ask critical questions and are eager to tackle new challenges together with your colleagues.

You also have the following to offer:

• PhD in Physics, Mathematics, Earth sciences, or a similar field.
• Affinity with atmospheric chemistry and/or optical models.
• Strong programming skills (e.g. Python, Fortran) and/or able to handle large datasets.
• Contributed to European and/or national research programs.
• Excellent proficiency in Dutch (minimum C2 level) and English, both spoken and written.

Challenging and varied work with a real impact. And plenty of opportunities as, at TNO, you are in charge of shaping your career. We offer a gross monthly salary between € 3,420 and € 4,000 (based on your knowledge and experience), 8% holiday pay, a 13th month bonus of 8.33% and a flex budget (5.58% + € 180). In addition, you will be given every opportunity to develop yourself.

TNO offers optional employee benefits, enabling you to tailor your benefits package to match your personal situation. You may also expect:

• An extremely professional, innovative working environment where colleagues are leading experts in their field.
• The opportunity to attend courses, workshops and conferences, and to receive training and coaching based on your needs.
• 33 days annual leave on a full-time basis.
• An employer that values and encourages diverse talent, with initiatives like the Female Leadership Program, our Rainbow Community and round tables on inclusion topics.
• We offer a comprehensive and flexible mobility plan that also includes full compensation for public transportation for commuting and business travel.
• Great social events with your team and other TNO colleagues. That’s how you will get to know a lot of people really quickly.
• Flexible working hours, the possibility to work parttime (32 of 36 hours) and the possibility of working from home.
• Access to our Talent Development Programme.
• Networking opportunities and great activities organized by Jong TNO.
• MANAGERS] Access to TNO’s project managers guild: a network of some three hundred equals. The guild organizes workshops, conferences, intervision sessions and other activities for project managers.
• Extensive relocation package for international candidates.
• A good pension scheme.

Read more about tailoring your benefits package.

At TNO, we innovate for a healthier, safer and more sustainable life. And for a strong economy. Since 1932, we have been making knowledge and technology available for the common good. We find each other in wonder and ingenuity. We are driven to push boundaries. There is all the space and support for your talent and ambition. You work with people who will challenge you: who inspire you and want to learn from you. Our state-of-the-art facilities are there to realize your vision. What you do at TNO matters: impact makes the difference. Because with every innovation you contribute to tomorrow’s world. Read more about TNO as an employer.

At TNO we encourage an inclusive work environment, where you can be yourself. Whatever your story and whatever unique qualities you bring to the table. It is by combining our unique strengths and perspectives that we are able to develop innovations that make a real difference in society. Want to know more? Read what steps we are taking in the area of diversity, equity and inclusion.

Please apply before the 16th of November, 2025. The selection process comprises two interview rounds. The preliminary interview takes place on the 24th or 25th of November. In a final meeting we will discuss the terms of employment and your tailored benefits package. We aim to finalize the entire process within four weeks.

The selection process may include an online assessment and a reference check.

A certificate of Conduct (VOG) is required before starting a new job at TNO.

As you will be working for clients in the domain of defence and security, a Certificate of No Objection issued by AIVD (the Dutch General Intelligence and Security Service) is mandatory. This means you will have to undergo a security screening. Read more about security screening.