The Mathematical Institute (MI) of Leiden University and the Leiden Institute of Advanced Computer Science (LIACS) are looking for a
PhD Candidate in Random Graphs and Complex Networks
to commence at the earliest possible date and no later than September 2025. The project focuses on establishing rigorous mathematical results for random (geometric) graphs, as well as on modeling realistic real-world networks with different structural properties. During the PhD, the successful candidate will work on several subprojects and analyse random graph models and complex networks by probabilistic tools, followed by empirical studies and validation of the models.
Aspects of interest include, but are not limited to, higher-order network structures, random processes on random (geometric) graphs and random graphs embedded in spaces with constant curvature. The position will be co-supervised by dr. Moritz Otto (MI) and by dr. Akrati Saxena (LIACS). Academic excellence is the main selection criterion.
Your tasks
- Conducting research on Random Graphs and Complex Networks
- Engaging in a limited number of teaching and supervision activities
- Our expectations
- A university degree* in mathematics or computer science (with a strong mathematical focus) with above average grades
- Advanced knowledge in probability; expertise in random graphs, complex networks, hyperbolic geometry or topological data analysis is a plus
- Strong programming skills in Python (please mention your level of proficiency and knowledge of other programming languages in your CV and motivation letter)
- Extraordinary motivation for scientific work
- Good English communication skills
- The ability to work independently and in a team
*Candidates not (yet) past the master’s phase are also invited to apply, assuming they will graduate in summer 2025.
Research at our faculty
The Faculty of Science is a world-class faculty where staff and students work together in a dynamic international environment. It is a faculty where personal and academic development are top priorities. Our people are committed to expand fundamental knowledge by curiosity and to look beyond the borders of their own discipline; their aim is to benefit science, and to make a contribution to addressing the major societal challenges of the future.
The Mathematical Institute (MI) and the Institute of Advanced Computer Science (LIACS) are two of the eight institutes within the Faculty of Science and have a strong international orientation. Their mission is to push the frontiers of scientific knowledge by developing and applying high quality science, while offering a wide range of training in a friendly and intellectually stimulating environment. We believe that mathematics and computer science are an essential part of human knowledge, and we take pride in our roles as keepers of this rich field of science. We are dedicated to push the boundaries of mathematical knowledge and to contribute our experience towards solving problems in other sciences, society, and industry.
The Mathematical Institute has four research themes: Algebra, Geometry and Number Theory; Analysis and Dynamical Systems; Probability Theory; and Statistics and Data Science.
LIACS concentrates on the study of theoretical foundations and formal methods, and focuses on applications in the field of artificial intelligence and data science. There are many collaborations between the two institutes. For more information, see MI and LIACS.
Terms and conditions
- We offer a full-time appointment of initially one year. After a positive evaluation of the progress of the research, teaching evaluations, personal capabilities and compatibility, the appointment will be extended for another three years.
- The gross salary ranges from € 2.901 per month in the first year to € 3.707 gross per month in the fourth year based on a full-time position (pay scale P).
- Additional funding is available to support travel to conferences and workshops abroad.
- Leiden University offers an attractive benefits package including pension build-up, paid parental leave and additional holiday (8%) and end-of-year bonuses (8.3%).
- Our individual choices model gives you some freedom to assemble your own set of terms and conditions. Candidates from outside the Netherlands may be eligible for a substantial tax break. For more information, see our website: Working at Leiden University, Application process and working conditions
- All our PhD candidates are embedded in the Leiden University Graduate School of Science.
Application documents
- CV and full academic transcripts (bachelor’s and master’s)
- A short cover letter of at most 2 pages detailing your motivation to apply for the position, stating why you think you are an excellent candidate
- A recent writing example (paper or thesis) that you are proud of and that reflects your academic writing skills
- Names and contact details of at least one person that has agreed to be contacted for academic reference (there is no need to send letters)
Only applications received via the university’s application tool before 6 May 2025 can be considered.
Diversity and inclusion are core values of Leiden University. We are committed to becoming an inclusive community that enables all students and staff to feel valued and respected and to develop their full potential. Diversity in experiences and perspectives enriches our teaching and strengthens our research.
In case of doubt or questions about the suitability of your research interest for this position, feel very welcome to reach out to dr. Moritz Otto ([email protected]) or dr. Akrati Saxena ([email protected]), before formally applying.
If you have any questions about the application procedure, please contact [email protected].
Interviews are expected to take place from 13 May 2025, until a suitable candidate has been found.
