Working at NIOO

With more than 200 staff and students, the Netherlands Institute of Ecology (NIOO-KNAW) is one of the largest research institutes of the Royal Netherlands Academy of Arts and Sciences (KNAW). Most are from the world of (international) science: professors, researchers and PhD students. They are joined by indispensable support staff in HR, Science Communication, Finances, ICT and Facilities. Everyone makes their own passionate contribution towards a more liveable world. Does that sound like you?
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© Perro de Jong / NIOO-KNAW

Diversity & inclusion

We set great store by a working environment in which everyone can feel welcome and appreciated. Together, we strive for an inclusive culture that embraces difference.

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Werken bij (Diversiteit)
© Perro de Jong / NIOO-KNAW

Facts and figures

  • Staff & students
    >200
  • Nationalities
    >30
  • Women/men
    52% / 48%
  • Research projects
    >120

Vacancies

  1. IT administrator (vacancy in Dutch)

    Category
    Position
    Ben jij een servicegerichte systeembeheerder met een passie voor innovatie die ook een gebruiker kan ondersteunen? Wil jij werken in een inspirerende wetenschappelijke omgeving waar je bijdraagt aan baanbrekend ecologisch onderzoek? Dan zijn wij op zoek naar jou!
  2. Postdoctoral researcher: Long-term ecological research on Lake IJsselmeer

    Closing date:
    Category
    Position
    Lake IJsselmeer is the largest reservoir of the Netherlands, providing important ecosystem services such as drinking water, fishing habitat, and flood risk protection. You will support a long-term ecological research programme on Lake IJsselmeer which is currently focused on water chemistry and phytoplankton. You will provide additional expertise to “add value” to the project. You will join a one-day pilot research cruise on the lake on 2 July 2026 and analyse the findings. Conduct and interpret analyses within your area of expertise that increase understanding of the functioning of Lake IJsselmeer and / or improve the methodologies and data pipelines for long-term sampling and analysis on Lake IJsselmeer. You prepare scientific publications and give conference presentations. This initiative is important to the strategic development of the Aquatic Ecology Department and you will be tasked with raising the profile of the Lake IJsselmeer project through a variety of commmuication channels.
  3. AI engineer in ecology

    Closing date:
    Category
    Position
    The Animal Ecology Department has several ongoing data and software-related projects that already integrate AI, LLM, and machine learning approaches into our work. Many of these projects will benefit from the hands-on assistance of a specialist in an area where opportunities are rapidly outpacing in-house expertise. We are also generating large, diverse datasets (including image libraries, video collections, sensor streams, and experimental data), and modern AI-based pipelines for extracting ecological information from them have to be developed.
  4. HR adviseur (vacancy in Dutch)

    Closing date:
    Category
    Position
    Wil jij jouw HR-expertise graag inzetten om bij te dragen aan ecologisch onderzoek met maatschappelijk impact? Werk je graag hands-on maar ook projectmatig in een dynamische, diverse en inclusieve organisatie? Dan zijn we op zoek naar jou!
  5. Postdoc: Above-belowground interactions in grasslands under global change

    Closing date:
    Category
    Position
    Grasslands are under increased pressure of global changes, with nutrient enrichment and changes in vertebrate grazer communities being among the most prominent. Although impacts of global changes on plant communities have been well documented, it is much less well understood how they affect soil community composition and functioning. We now have the unique opportunity to utilise a long-term experiment at the Veluwe (the Netherlands), which is part of the global Nutrient Network (www.nutnet.org), to study impacts of nutrient addition and grazing on plant and soil communities.
  6. Medewerker Facilitair (vacancy in Dutch)

    Closing date:
    Category
    Position
    Ben jij iemand die graag dingen regelt, overzicht houdt en energie krijgt van een afwisselende werkdag? Heb je al een paar jaar werkervaring en wil je jezelf verder ontwikkelen binnen het facilitaire vak? Dan zijn wij op zoek naar jou! Bij NIOO-KNAW maak je onderdeel uit van een internationale onderzoeksomgeving die werkt aan kennis over natuur, biodiversiteit en een leefbare wereld.
  7. PhD position: modelling the impact of light at night on urban food webs

    Closing date:
    Category
    Position
    We are looking for a PhD candidate to join a project on aquatic–terrestrial coupling of trophic interactions in urban ecosystems. The project focuses on understanding how environmental changes, particularly artificial light at night (ALAN) and temperature, reshapes ecological interactions across ecosystem boundaries. The research will combine ecological theory, mechanistic modelling, empirical data integration, and communication across disciplines.
  8. PhD position: Genetic basis of yield stability in barley under drought

    Closing date:
    Category
    Position
    Interested in how crops maintain stable yields under both optimal and drought conditions? A PhD position within the Allrounder project - dissecting the genetic basis of natural variation in root and shoot architecture as basis for breeding climate-resilient barley - might be suited for you!
  9. Medewerker Technische Dienst (vacancy in Dutch)

    Closing date:
    Category
    Position
    Bij de Technische Dienst heb je een afwisselende en uitdagende functie waar je ervoor zorgt dat onze duurzame gebouwen en installaties goed functioneren. Door jouw inzet blijft de techniek betrouwbaar – een onmisbare schakel in ons werk voor natuur en klimaat.
  10. PhD position: aboveground-belowground linkages in beech masting dynamics

    Closing date:
    Category
    Position
    Every day, hidden ecological processes unfold right below our feet. Are you excited about belowground ecology and interested in combining long-term ecological data, soil ecology, fieldwork, and predictive modelling to understand how forests respond to global change? We are looking for a PhD candidate to investigate how belowground processes contribute and respond to mast seeding dynamics in European beech (Fagus sylvatica).
  11. PhD: Biogeography of plant-associated fungi on the Galapagos islands

    Closing date:
    Category
    Position
    In this project, you will investigate the biogeography of above- and belowground fungi associated with several Scalesia species. We aim to develop an integrated view of diversity and distribution of three components of the fungal microbiome: arbuscular mycorrhizal fungi (AMF), yeasts, and fungal pathogens colonizing roots and leaves.

Internships

  1. Hbo/MSc student project: microbial N2O emission and CH4 oxidation in agricultural soil

    Category
    Internship
    Upland soils play an important role in climate regulation by acting as both sinks and sources of greenhouse gases (GHGs), such as nitrous oxide (N₂O) and methane (CH₄). Compared with natural upland ecosystems, agricultural soils often exhibit higher “leakiness” owing to intensive management practices such as high nitrogen inputs and frequent soil disturbances. These practices can reduce the CH₄ sink capacity while enhancing N₂O emissions. In a previous chapter of our work, we use extensive observational data to identify pathways through which agricultural practices may affect methane oxidation and nitrification. This student project will take an experimental approach to validate and extend those findings, linking management to soil GHG “leakiness” and the responsible microbial communities.
  2. Harnessing the seed microbiome for seed and plant performance under stress - MiSeed internship

    Category
    Internship
    The seed microbiome has gained increasing interest since it influences key aspects of plant life, including germination, seedling vigour, nutrient uptake, and tolerance to biotic and abiotic stresses. However, the microbial functions and molecular mechanisms that link seed-associated microbes to seed and plant performance remain largely unknown.
  3. Micro-evolutionary adaptation to one stressor modifies the ability of organisms to cope with other stressors: working towards a literature synthesis

    Category
    Internship
    The aim of the proposed internship is to provide an as complete as possible literature overview of what is known about this topic for metazoans. You will also engage in trying to explore the possibilities for a meta-analysis.
  4. Marine harmful algae and environmental change in the Anthropocene

    Category
    Internship
    We are offering an internship for a master's student to investigate the responses of marine microalgae exhibiting harmful traits to various global environmental change factors.
  5. Discover Natural Solutions for Crop Protection: Research Internship in Fungal Metabolomics

    Category
    Internship
    Are you curious about the power of metabolomics in sustainable agriculture? We are seeking a
    motivated student to join a project exploring the chemistry behind fungal potential to combat
    Striga, a parasitic plant devastating sorghum and rice crops.
  6. Climate proof soils by steering soil and residue microbiomes to improve the physical, chemical and microbial properties of compost with clay

    Category
    Internship
    This research is part of the ClipsMicro (Climate proof soils by steering soil and residue microbiomes) project and aims to make Maize cultivation on sandy Dutch soils more sustainable and resilient by designing and testing a climate proof soils management strategy. We integrate cover crops with biological nitrification inhibition (WP 3) and clay-amended compost (WP 2). Here you can contribute to WP 2, focusing on the clay-amended compost research.
  7. MBO or HBO internship: Analyzing freshwater zooplankton samples with the use of a deep learning based image analysis method

    Category
    Internship
    In this internship project, we will explore how newly developed software for image analysis based on state-of-the-art deeplearning methods may contribute to the analysis of zooplankton samples.
  8. Investigate the role of microbiome functions on recycled organic residues to improve plant growth

    Category
    Internship
    Are you excited about sustainable agriculture and soil and plant microbes? We are offering an internship focused on how recycled organic residues shape microbiome functions that promote plant growth. This project investigates the impact of microbial communities in nutrient cycling and plant development, aiming to enhance resource efficiency and sustainability in agriculture.
  9. Linkages between soil fauna and soil carbon cycling

    Category
    Internship
    A wide range of organisms live in soils, where they support carbon and nutrient cycling. Although a higher diversity of soil organisms is generally associated with better soil functioning, the direct role of soil fauna in regulating soil carbon cycling is still unclear. This is especially important considering that global changes are disproportionately affecting larger fauna and predators, which could destabilize soil food webs.
  10. MBO or HBO internship: “Good food supports good science”

    Category
    Internship
    We hypothesize that the difficulties of long-term culturing of B. calyciflorus populations stems from the fact that food sources typically consist of just one single algal food source and we suspect that the biochemical content (e.g. sterols, amino acids, fatty acids, vitamins) of such food is too incomplete to ensure robust rotifer population growth. For this reason, we have selected a number of promising algal species that, when combined with each other, may provide a better food source. The idea is to test which algal combination is best in sustaining rotifer growth.
  11. Climate-proof soils by steering soil and residue microbiomes - ClipsMicro

    Category
    Internship
    Are you ready to dive into the world of microbial ecology applied to agricultural research? Join us in the "ClipsMicro" project at the Netherlands Institute of Ecology (NIOO) and play a crucial role in developing nature-based agricultural management strategies.
  12. Modeling yeast metabolism in plant phyllosphere

    Category
    Internship
    In this project, our primary focus will be on delving into the physiology of these less-researched yeast strains residing in the phyllosphere using computational tools, reconstruct a genome-scale metabolic model and predict carbon utilization.
  13. Microbial competition and cooperation in the phyllosphere

    Category
    Internship
    Suitable for Master students for at least six months
  14. Exploiting foliar yeasts for fungal pathogen inhibition and mycotoxin degradation

    Category
    Internship
    Suitable for Master students for at least six months
  15. Master student in ecological genomics

    Category
    Internship
    Evidence is accumulating that epigenetic mechanisms can affect heritable phenotypic traits and thus, may play a role in plant adaptation. However, little is known about the magnitude and relevance of functional epi-allelic variation in natural plant populations.
  16. Manipulating your victim: the adaptive significance of host usurpation by the endoparasitoids Cotesia glomerata and Cotesia congregata

    Category
    Internship
    Parasitoid wasps are known to exhibit two strategies for exploiting host resources during development. The first is for the parasitoid larvae to consume the entire host (such as a caterpillar) before pupation. However, some parasitoids consume only a small fraction of the host during development. In this case, the mature parasitoid larvae emerge through the sides of the still-living host and pupate on, or next to it. In some instances, the caterpillar may remain alive for up to two weeks after parasitoid pupation and remain very close to the parasitoid cocoons.
  17. Coping with a changing world: the consequences of rapid evolutionary adaptation to combinations of multiple stressors

    Category
    Internship
    Rapid evolutionary adaptation is increasingly considered as an important mechanism allowing animals to adapt to a rapidly changing world. Our research has shown that rotifers, a type of very common freshwater zooplankton, are able to adapt to poor food quality or enhanced salt concentrations in not more than a few months. At this moment, we investigate how rotifers cope with combinations of stressors. More specifically, we run evolution experiments in the laboratory exposing populations to the metal Cu and high temperatures, with the aim to study how adaptation to one stressor impedes or enhances the response to the other stressor.

HR team

This is our Human Resources team