Climate & Air Quality Software Engineer

Climate change, air quality, and the energy transition play a huge role in defining, implementing, and monitoring policy. To properly design and implement policies, it is crucial to understand emissions and concentrations of gases and substances, at both regional and national level and ideally in real-time. At the Environmental Modelling, Sensing & Analysis (EMSA) department, we use measurement equipment and sensor networks to monitor the concentrations of various gases and particles in the air. As a software engineer, you will support EMSA’s researchers. You will process and visualise measurement data and help share the data with third parties.

Researchers at EMSA measure and monitor concentrations of different gases and particles in the air in various locations and regions across the Netherlands. They also use mobile measurement systems and perform local emission measurements to monitor gases and substances such as nitrogen, greenhouse gases, and particulate matter. The data are validated and stored in databases, and conclusions are drawn from the results of model calculations. The results are then provided to third parties via web applications.

Your job is to maintain the IT systems and add new features. Your duties will include:

• Implementing data pipelines to the cloud.
• Making data from the cloud available to analysts.
• Developing web applications (to present the data in a specific way).
• Maintaining and extending data acquisition software to read and control measurement instruments.
• Designing and implementing secure APIs.

You have a broad background in software engineering, stay up to date with new developments, and are not afraid to dive deep to master a technology. You will be working at the office in Petten 2 to 3 days a week.

• You are proficient in C#, Git, Python and ASP.NET.
• You have experience with Azure SQL.
• Experience with one or more of the following is a plus: Azure IoT Hub or other Azure products.
• You experiment with generative AI and engage with it in a balanced and responsible way.
• An affinity for climate, air quality, and/or the environment would also be an plus.
• You have at least a higher professional education degree or equivalent ability in the field of software engineering or ICT.
• You have good oral and written skills in English. Knowledge of the Dutch language would be a plus.

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 € 3.500,- and € 6.150,- (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 plus a flexible holiday (prorated) that can be used on a cultural, religious, or otherwise important day of your choosing.
• An employer working towards a respectful, inclusive, and equitable work environment where every employee can flourish, with various employee networks that foster connection and give advice.
• 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 or 36 hours) and the possibility of working from home.
• 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 11th of May, 2026. The preliminary interview takes place on the 27th of May, 2026. The second interview round has been scheduled for the 1st of June, 2026. The selection process comprises two interview rounds. 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.