Postdoctoral Researcher in General Relativity and Data Analysis

0.8 - 1.0 FTE
Gross monthly salary
€ 2,960 - € 4,670
Required background
Organizational unit
Faculty of Science
Application deadline
Do you have a PhD degree in physics and expertise in general relativity and data analysis tools? Would you like to use your experience to work on a better understanding of tidal resonances? And does an interdisciplinary and informal environment that values open science and diversity in academia sound like the right workplace for you? Then you have a part to play as a postdoc.

We are looking for a postdoctoral researcher with expertise in general relativity and data analysis. As a postdoctoral researcher you will join the Strong Gravity group of B. Bonga and work on modelling tidal resonances. These resonances were co-discovered by Bonga and are critical to model accurately in extreme mass ratio inspirals (EMRIs) if we want to maximise the scientific output of LISA. You will complement the theoretical expertise in the group by bringing your expertise in (gravitational wave) data analysis. Ideally, you already have some experience with the data analysis tools relevant for LISA. 

You are expected to closely collaborate with Bonga and students in her group. In addition, you should be open to interact with Radboud University's data analysis experts on gravitational waves (B. Krishnan and G. Nelemans) and particle physics (S. Caron). The goal is to improve current models for tidal resonances, create efficient and accurate waveform models and develop data analysis tools to identify tidal resonances in mock data and extract the relevant parameters.

This project is funded by the NWO grant 'Observing resonating black holes with gravitational waves'.


  • You hold a PhD degree in physics. 
  • You are expected to have a demonstrable interest and experience in at least one of the following topics: gravitational wave theory, waveform modelling, or data analysis methods and tools. 
  • You are excited to work on a better understanding of tidal resonances and improve data analysis tools to analyse them.
  • You value open science, diversity in academia (and beyond), and sustainable academic practices in the face of the climate crisis.
  • You will be happy to closely collaborate with Bonga and members in her group, but will also further develop your own research independence and creativity.

We are

The Strong Gravity group is part of the Gravity section of the High Energy Physics department at Radboud University. The Gravity section currently consists of six staff scientists (J. Ambjorn (part-time), B. Bonga, T. Budd, B. Krishnan, R. Loll, F. Saueressig) and about three times as many PhD candidates and postdocs, with research topics ranging from black holes and gravitational waves to quantum gravity and random geometry. We have close ties to gravitational research in both the Astrophysics (including a large involvement in the Event Horizon Telescope) and Mathematics departments (including mathematical relativity and noncommutative geometry), with which we share the Institute for Mathematics, Astrophysics and Particle Physics (IMAPP). Our diversity and broad expertise in gravity combined with many regular activities provide a stimulating environment for both early-career and experienced researchers. 

Radboud University is situated in Nijmegen (the Netherlands), which is a small but vibrant town surrounded by diverse nature and with great public transport connections to Amsterdam and Utrecht. English is the lingua franca at the University, and you can comfortably get by without knowing any Dutch. Radboud University is an equal opportunity employer, committed to building a diverse intellectual community, and as such encourages applications from women and minorities.

Radboud University

We want to get the best out of science, others and ourselves. Why? Because this is what the world around us desperately needs. Leading research and education make an indispensable contribution to a healthy, free world with equal opportunities for all. This is what unites the more than 24,000 students and 5,600 employees at Radboud University. And this requires even more talent, collaboration and lifelong learning. You have a part to play!

We offer

  • It concerns an employment for 0.8 - 1.0 FTE.
  • The gross monthly salary amounts to a minimum of €2,960 and a maximum of €4,670 based on a 38-hour working week, depending on previous education and number of years of relevant work experience (salary scale 10).
  • You will receive 8% holiday allowance and 8.3% end-of-year bonus.
  •  It concerns a temporary employment for 2 years with the possibility of extension by 1 year.
  • You will also have a generous travel budget of E6000 per year.
  • You will be able to use our Dual Career and Family Care Services. Our Dual Career and Family Care Officer can assist you with family-related support, help your partner or spouse prepare for the local labour market, provide customized support in their search for employment and help your family settle in Nijmegen.
  • Working for us means getting extra days off. In case of full-time employment, you can choose between 29 or 41 days of annual leave instead of the legally allotted 20.

Additional employment conditions

Work and science require good employment practices. This is reflected in Radboud University's primary and secondary employment conditions. You can make arrangements for the best possible work-life balance with flexible working hours, various leave arrangements and working from home. You are also able to compose part of your employment conditions yourself, for example, exchange income for extra leave days and receive a reimbursement for your sports subscription. And of course, we offer a good pension plan. You are given plenty of room and responsibility to develop your talents and realise your ambitions. Therefore, we provide various training and development schemes.

Would you like more information?

For questions about the position, please contact Béatrice Bonga, Assistant Professor at bbonga [at]

Practical information and applying

You can apply until 6 November 2022, exclusively using the button below. Kindly address your application to Béatrice Bonga. Please fill in the application form and attach the following documents:
  • A letter of motivation, including your view on how your background and expertise contribute to the goals of the research programme to improve modelling of tidal resonances.
  • Your CV, including a list of publications and the contact details of two referees (one of which should ideally be from your PhD supervisor).
  • A research statement in which you explain your research background and interests.

The first round of Interviews will take place in the week of 14 November. 
You would preferably begin employment on 1 January 2023.

We can imagine you're curious about our application procedure. It offers a rough outline of what you can expect during the application process, how we handle your personal data and how we deal with internal and external candidates.
Apply now Application deadline

We would like to recruit our new colleague ourselves. Acquisition in response to this vacancy will not be appreciated.

Dr Bonga, B.P. (Béatrice)

Assistant Professor

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