PhD position: Water-Mediated Cooling of European Cities and Citizens

Are you a highly motivated researcher passionate about urban hydrometeorology, climate modelling, heat-health interactions, and water-sensitive urban design? Do you want to work on a high-impact, international project that translates urban hydrometeorological science into real-world solutions protecting human health from extreme heat?

We are seeking a talented PhD candidate to join the Horizon Europe Innovation Action Project EUROASIS (EUROpean Adaptive, Systemic and Inclusive Solutions for heat resilience). This PhD position focuses on assessing whether innovative cooling interventions piloted in EUROASIS pilot cities will also perform in the project's replicator cities and regions across Europe's diverse hydroclimates.

As our PhD candidate, you will model the urban water-energy balance underlying (evapotranspirative) cooling—e.g., how greening and water features impact hydrometeorological conditions and translate into reduced heat-health risk based on temperature- and humidity-based heat indices. You will simulate these effects in the replicator cities against field measurements in a subset of them, and quantify the water demand of sustaining this cooling under extreme heat conditions. Your work will directly culminate in international peer-reviewed journal papers and foundational project deliverables.

You will work here
The Hydrology and Environment Hydraulics (HWM) chair group, led by chairholder Martine van der Ploeg, aims to contribute to the improved understanding of catchment-scale hydrological processes through advanced measurement, modeling and assimilation techniques. You will be co-supervised by Dr. D. (Dragan) Milosevic and Dr. AJ (Ryan) Teuling.

PhD on Modeling the Cool City: Microclimate Solutions for Urban Heat Resilience

Are you a highly motivated researcher passionate about urban climate and hydrometeorological modeling, urban biometeorology, and climate-sensitive urban design? Do you want to pursue a PhD study that translates advanced urban (bio)climate and hydrometeorology knowledge into real-world solutions protecting human health from extreme heat?

We are seeking a talented PhD candidate to join the Horizon Europe Innovation Action Project EUROASIS (EUROpean Adaptive, Systemic and Inclusive Solutions for heat resilience). This PhD position will focus specifically on evaluating and upscaling a portfolio of systemic heat-mitigation innovations across four major European pilot cities: Amsterdam, Athens, Zaragoza, and Reggio Emilia.

You will assess how physical, nature-based, and digital interventions—ranging from Amsterdam's network of shaded routes and heat shelters to Zaragoza's xerophytic "climate oases"—alter the outdoor thermal conditions and directly minimize ambient heat exposure for urban populations. Collaborating with international partners (such as Imperial College of Science Technology and Medicine and Atelier Franck Boutté), you will couple advanced microclimatic and urban morphology simulations with epidemiological data to quantify heat-health benefits. As our PhD candidate, you will bridge the gap between high-resolution microscale climate/hydrometeorological simulation and empirical public health outcomes. Your work will directly culminate in international peer-reviewed journal papers and foundational project deliverables.

You will work here
The Meteorology and Air Quality Group (MAQ) aims to contribute to the further understanding of atmospheric processes and their relevance for weather, air quality and climate. We do research on a variety of topics and horizontal scales. As a university group we are responsible for the education in subjects of Meteorology and Air Quality at the BSc and MSc level and the training of PhD candidates. Students are guided in the basics of Weather and Climate, Forecasting, Turbulence and Dispersion, Boundary-Layer Meteorology and Chemistry, Atmospheric Dynamics, Desertification and Land use, and many other subjects. You will be co-supervised by Dr. D. (Dragan) Milosevic and Dr. G.J. (Gert-Jan) Steeneveld.

PhD Fellow Governance of Cybercrime

Cybercrime is on the rise: there are ever more different types of criminal offences conducted via digital networked technologies, and the volume of criminal activities also rises year by year. Some forms of cybercrime are growing rapidly and therefore require extra research. This is the case, for instance, with online sexual offences such as sextortion, harassment and cyber stalking. One area of interest is trying to find predictors for victimization of these types of cybercrime to get an understanding of which groups or personality types have a higher risk of becoming a (repeat) victim and why. A deeper understanding of such predictors can facilitate research into the use(fulness) of interventions, so that specific groups or personality types may become better protected against these types of cybercrime.

The Research group Governance of Cyber Security at the Institute of Security and Global Affairs (ISGA) is looking for a PhD Fellow (1.0 fte, 60-month position) to conduct research on the governance of cybercrime with a special focus on the governance of victimization in online environments. In this PhD project the candidate will study predictors of victimization of (1) online sexual offences or (2) harassment and cyber stalking, with a focus on improving the effectiveness of interventions against these specific types of cybercrime.

The duties of a PhD Fellow consist of several components, namely: doctoral research, training, and teaching. Over the course of a six-year appointment, on average 50% of the total workload is devoted to doctoral research, 10% to training and professional development, and 40% to teaching, including administrative responsibilities related to the educational programme.

A PhD Fellow is expected to have completed a full draft of the dissertation by the end of the fifth year of the appointment. The sixth year is intended for reviewing and revising the dissertation draft, incorporating feedback received, and preparing for the PhD defence.

What you will do
The successful candidate will conduct research on governance of cybercrime and assist with teaching in the MSc in Crisis and Security Management. The candidate will:

▫ Conduct supervised and collaborative research with the research group Governance of Cyber Security leading up to a dissertation;
▫ Collect and analyse data on the above topics;
▫ Produce a high-quality dissertation under the guidance of two supervisors;
▫ Work within a multidisciplinary team in the Governance of Cyber Security research group and with other research groups within the Institute;
▫ Assist in teaching and grading activities for courses at master level within the institute.

Where you will work
The mission of the Faculty of Governance and Global Affairs (FGGA)? Contributing to society. The faculty does this through high-quality interdisciplinary education and (new) scientific knowledge. Whether it is terrorism, security, artificial intelligence or a governance solution to the housing crisis, contemporary issues are comprehensively addressed at FGGA.

In the heart of The Hague, where important decisions are made, students and professionals come together to gain knowledge and skills. There is much collaboration with academic and societal partners, which ensures that students leave university with a smile and one foot in the future, ready to make a substantial contribution to society.

FGGA is one of the seven faculties of Leiden University. This young, entrepreneurial, innovative organisation has three scientific institutes, two centres, over 3,700 students and 425 staff members. For more information about the faculty, click here.

The Institute of Security and Global Affairs (ISGA) is a scientific institute specialising in security issues. ISGA is part of the Faculty of Governance and Global Affairs of Leiden University.

ISGA analyses and studies security issues with local, national, transnational and global impact. These include crises, intelligence, terrorism, war, violence and cybercrime. The institute is characterised by a multidisciplinary research approach.

ISGA is based in the residential city of The Hague, the international city of peace, justice and security. Inspiring interactions are maintained with other knowledge institutions, regional, national and international governments, the private sector and NGOs.

What you bring
In this team, we are looking for someone who can work independently. Every job is different, so in the beginning we will devote attention to your onboarding. If some of the work activities are new to you, we will look together at what you need, and draw up a development plan. This position is a good fit for you if you recognise yourself in the following:

▫ An MSc or MA degree in governance studies, criminology or cyber security or a related field relevant to researching governance of cybercrime;
▫ Demonstrable experience with supervised research in the form of a bachelor and/or master thesis;
▫ Commitment to multidisciplinary research;
▫ Experience with teaching support is considered an asset;
▫ Commitment to fostering a close-knit, interdisciplinary academic community;
▫ Some experience with various research methods and techniques;
▫ Interest in connecting academic research to policy and societal impact.
▫ Excellent command of both Dutch and English, with strong verbal communication skills and professional written proficiency in both languages.
▫ You live and are officially registered as resident in The Netherlands or are willing to relocate upon starting the position.

If you immediately recognise yourself in this profile, or if do you not quite meet all the requirements, but you believe that this is the right job for you, we look forward to your application!

What we offer
Our goal is to work together to create a transparent and inclusive work environment in which everyone feels welcome and appreciated. Our organisation is always evolving and we need your ideas for improvement and innovation to take us further. We want to devote attention to your personal development.

You can count on an enjoyable job within the socially relevant world of education and research. The University's challenging and international work environment is located in the bustling city centre of The Hague. We also want to work with you to devote attention to your health and vitality, for example with the fun activities we organise through Healthy University.

We also offer:

• An employment contract for the duration of 6 years. This contract falls under the CLA of Dutch Universities;
• A salary of a minimum of € 3.546,- and a maximum of € 5.538,- gross per month, based on a full-time appointment (38 hours) (scale 10);
• A holiday allowance (8%), an end-of-year bonus (8,3%), and an attractive pension scheme at ABP;
• Full reimbursement of public transport commuting costs for home-to-work travel;
• Flexible working hours: as a standard, you are entitled to a minimum of 29 leave days on the basis of a full-time working week of 38 hours; you can also save for extra leave, for example by working 40 hours a week, and in this way accrue an extra 96 leave hours, or exchange 96 leave hours for a 36-hour week.
• Lots of options when it comes to secondary employment conditions; we can, for example, discuss options for a sabbatical or paid parental leave. Within our terms of employment individual choices model, you can exchange leave days and/or salary for benefits such as an advantageous sports subscription or bicycle scheme, and we also offer child-care options;
• If your work allows it, hybrid working is possible within the Netherlands;
• A home-working allowance (day and internet allowance) and attention for good workplaces. The University will also provide you with a laptop.
• All our PhD students are embedded in the Graduate School of Governance and Global Affairs. Our graduate school offers several PhD training courses at three levels: professional courses, skills training and personal effectiveness.

For more information about employment conditions, see https://www.universiteitleiden.nl/en/working-at/job-application-procedure-and-employment-conditions

What we value
Promoting an inclusive community is central to Leiden University’s values and vision. Leiden University aims to be an inclusive community in which all students and staff members feel valued and respected, and are able to develop to their full potential. Diversity in experiences and perspectives enriches our teaching and strengthens our research. High-quality education and research means inclusive education and research.

Want to apply or find out more?
If you want to apply straight away, click the application button and submit the following documents (PDF format), quoting the vacancy number.

If you would like more information about what the job entails, please contact prof.dr. Bibi van den Berg, head of the research group Cybersecurity Governance at b.van.den.berg@fgga.leidenuniv.nl

You can apply up to and including 31 August 2026; applications will be processed immediately.

To help us get to know each other better, we follow a number of steps in the application procedure. For more information, see https://www.universiteitleiden.nl/en/working-at/job-application-procedure-and-employment-conditions

• We believe mobility is very important. That is why we are also publishing this vacancy internally. In case of equal suitability, we will give priority to the internal candidate.
• A pre-employment screening (references, diplomas, certificate of good conduct (VOG)) may be part of the selection procedure.
• Acquisition in response to this vacancy is not appreciated. If you nevertheless choose to send us CVs, no rights can be derived from this.

Engineering and application manager 2

Kom bij ons werken!
Binnen het Administratief Centrum/ICT Services (AC/ICTS) werken we aan één geïntegreerde ServiceNow-omgeving voor de Universiteit van Amsterdam (UvA) en de Hogeschool van Amsterdam (HvA). Met meer dan 100.000 studenten en 10.000 medewerkers zijn we één van de grootste onderwijs- en onderzoeksorganisaties van Nederland. We maken processen slimmer, eenvoudiger en gebruiksvriendelijker - voor iedereen.

Je maakt deel uit van het afdeling Servicemanagement bestaande uit een team dat verzoeken vertaalt in functionele termen en een team dat werkt aan de technische realisatie daarvan. Als ontwikkelaar ben je onderdeel van dat laatste team.

Dit ga je doen
Je zorgt voor de technische realisatie van de functionele requirements die de collega’s voor je klaarzetten. Je vertaalt de verzoeken vanuit zowel de UvA als de HvA naar solide technische oplossingen binnen het platform. Je bouwt, configureert en schrijft scripts en hebt er plezier in om functionele wensen te vertalen naar werkende, robuuste ServiceNow-oplossingen.

Je houdt je onder andere bezig met:

• Technisch bouwen, configureren en (door)ontwikkelen van ServiceNow-modules (ITSM, CSM, CMDB en toekomstige uitbreidingen zoals HRSD, GenAI en platform functionaliteit)
• Vertalen van functionele ontwerpen van de business analist naar technische specificaties en werkende code
• Ontwerpen en implementeren van workflows, playbooks, business rules, script includes, UI-policies, catalog items en formulieren
• Realiseren en onderhouden van integraties met andere systemen, onder andere via REST/SOAP
• Testen (inclusief geautomatiseerd testen via ATF), debuggen en oplossen van technische issues
• Bijdragen aan code reviews, technische documentatie, upgrades, cloning en het beheersen van technical debt
• Een vlekkeloze technische doorvoering van releases en upgrades
• Signaleren van technische risico's en meedenken over nieuwe mogelijkheden binnen het platform

Dit vragen we van jou
Als ServiceNow Certified System Administrator (CSA) (verplicht) werk je nauwkeurig en gestructureerd. Je denkt in oplossingen in plaats van in problemen.

Daarbij communiceer je makkelijk met collega's uit de business én de techniek en spreek je vloeiend Nederlands. Affiniteit of ervaring met het hoger onderwijs is een pre. Daarnaast heb je:

• Minimaal 3 jaar relevante ervaring als ServiceNow ontwikkelaar (verplicht)
• Aantoonbare technische kennis van Glide API, JavaScript, Flow Designer en scripting binnen ServiceNow
• ServiceNow Certified Application Developer (CAD) (of bereidheid dit op korte termijn te behalen)
• Ervaring met integraties (REST/SOAP, Integratie platformen) en gestructureerd testen (bijvoorbeeld ATF)

Dit bieden we jou
Een afwisselende en verantwoordelijke functie binnen een maatschappelijk relevante organisatie. Je krijgt ruimte om je expertise in te zetten én verder te ontwikkelen. We bieden je alle ruimte voor persoonlijke en professionele ontwikkeling.

Naast een goed salaris van minimaal € 4.728,- tot € 6.433,- bruto per maand (op basis van 38 uur exclusief 8% vakantiegeld, een 13e maand met een uitgebreid pakket secundaire arbeidsvoorwaarden waaronder een ruime vakantieregeling, bieden wij jou:

• Een jaarcontract met een proeftijd van twee maanden, met uitzicht op een vast contract na 1 jaar;
• Mooie projecten waarmee je het verschil kunt maken;
• Een enthousiast team met echte vakspecialisten en sparringpartners in de techniek;
• De bijzondere dynamiek van twee grote instellingen (UvA en HvA);
• Leuke teamuitjes en activiteiten;
• Vers fruit op locatie en mogelijkheid tot het boeken van stoelmassages.

Hier kom je te werken
Je komt te werken in een enthousiast, multidisciplinair en gezellig team dat in het midden staat van 2 organisaties waar onderwijs en onderzoek centraal staan. Het product team kent alle leeftijden, telt 11 leden, inclusief scrum master en product owner, en werkt op de dinsdag en donderdag dagen fysiek samen op kantoor.

In 2025 hebben we een spannende migratie van TOPdesk naar ServiceNow onder grote druk succesvol afgerond. We willen nu onze kennis en backlog op niveau brengen, want de organisatie staat te springen om nog meer uit ServiceNow te halen. Daartoe werken jullie nauw samen met de Platformarchitect en een Senior Business Analist. Er is veel ruimte voor groei en vernieuwing.

PhD position "Synthetic Active Matter: Unravelling 3D Real-Space Dynamics"

The project focuses on the experimental realization and study of artificial microswimmers/microrobots that can move and interact autonomously in 3D environments, mimicking the complex dynamics of microorganisms in fluids.

Living systems such as bacteria or algae exhibit remarkable capabilities: they swim, adapt, interact, and self-organize into dynamic patterns. Understanding and replicating these life-like dynamics in synthetic systems remains a major challenge across physics, chemistry, biophysics, and materials science.

In this PhD project, you will:

§ Develop an experimental platform to study 3D self-organization of active particles.

§ Fabricate and characterize light-driven microswimmers.

§ Use advanced optical microscopy and particle tracking to analyze their motion and interactions.
Investigate emergent behaviors such as swarming, clustering, and collective navigation in confined and complex environments.

The project will build on an interdisciplinary approach, combining concepts and methods from physics, chemistry, and mathematical modelling.

The long-term goal is to derive design principles for constructing smart, adaptive microsystems, potentially useful for targeted drug delivery, cargo transport, biosensing, microfluidic mixing, or self-healing materials.

The successful candidate will join the Active Soft Matter Lab within the TNW Faculty, the MESA+ Institute for Nanotechnology, University of Twente, Enschede, The Netherlands. This position offers ample opportunities for collaboration and interaction with various academic and industrial partners. You will work in a dynamic, highly interdisciplinary environment, utilizing state-of-the-art equipment and facilities to further the understanding and applications of microswimmers.

Starting Date: 1st October 2026 (but negotiable).