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Internships, research and fieldwork

Each faculty and some study programmes have their own guidelines and procedures for internships, research and fieldwork abroad. Take a look under your faculty and programme tab for more information.

What is STREAM?

Via the Student Research Mobility Programme (STREAM) you can take part in research projects at other European universities who are, like Leiden, members of LERU (League of European Research Universities).

Research projects

The following universities offer research projects: 

It is anticipated that more LERU universities will offer research projects in the future, for example Lund University, Sweden and Université de Genève, Switzerland. 

Who can apply?

You can apply for a research project via STREAM if you meet the following conditions: 

  • You are a third-year bachelor or a master student at Leiden University
  • Your average grade is at least 7 out of 10, or 3.2 out of 4 (GPA)
  • Your English level is at least B2
  • You meet any additional criteria for the research project in question


  1. Carefully read the information about the research project and check if there are additional criteria and whether it fits into your study schedule.
  2. Prepare the required documents:
    • Motivation letter (max 500 words, in English)
    • Curriculum vitae
    • Recent list of grades
    • Two reference letters 
  3. Complete the application form.
  4. Send the completed application form and required documents to the international exchange coordinator at your faculty.
  5.  You will receive a decision on your application within approximately six weeks.

Financial support

If you are admitted to a STREAM project, you may be able to apply for an Erasmus+ for Traineeships grant in certain circumstances.


Contact Usha Mohunlol, Leiden University's STREAM coordinator. 

Roberta Sellaro

Assistant Professor, Leiden University

Roberta Sellaro

“I had the opportunity to supervise an amazing student, extremely motivated, very skilled, professional, and trustworthy. She designed an entire study on her own and managed to program a complex virtual reality task”.

Linda Ravazzano

University of Milan

Linda Ravazzano

Research at Leiden University: “Taking part to the STREAM programme had been a great opportunity to work in a true research project inside an international research group. This experience not only made me grow up under an academic point of view, but also gave me the opportunity to discover a new country and to meet people from all over the world”.

Marnix van de Sande

Utrecht University

Marnix van de Sande

Research at University of Zurich: “The STREAM programme offered me the opportunity to experience research first-hand, which really helped me in discovering my own passions and qualities. I am really grateful that I got the chance to take part in an ongoing research project as a fresh BSc graduate. The experiences in the lab have given me a solid impression of what work in a biomedical research lab is like, and this helped me a lot in the choice for a master's degree. I have a much more realistic view of what life as a PhD student is like, and I now know better what to expect if I decide to continue in research”.

Faculty and programme information

Take a look under your faculty or programme tab for further information on internship, research of fieldwork opportunities and procedures for students on your study programme. Alternatively, make an appointment with your faculty's international exchange coordinator

Check your destination

You may not do an internship, research or fieldwork in a country for which negative travel advice has been issued. Check here if your destination is safe. This webpage is in Dutch, but by entering the country name (Dutch spelling) you can view the safety status on a map. If your destination is red or orange, you may not go there.

Photo: Harriët Meiborg

More information

Read more about internships, research and fieldwork abroad.

How to find a research project or internship abroad?

If you want to go abroad to follow a research project, you are not limited to the list of exchange partner universities. You can take your research project at an university, but also at another organization or company.

Application for a research project or internship

Step 1

Find a research project or internship abroad.

There are no strict application deadlines for research projects or internships. However, there are application deadlines for scholarships and it will definitely take time to arrange all the practical and administrative matters. Therefore we advise to start for a research project within Europe at least 6 months and outside Europe at least 9 months before departure.

Your academic staff can recommend which organisations will fit with your specialisation or interest. Besides, the Science International office, your study advisor and the Science Career Services can give support. You can also check different websites for worldwide vacancies, for example Graduateland and Going Global. On our Blackboard course you can read reports of Science students who have followed an internship or research project abroad before.


Find all information on Blackboard

You can find all the information about studying abroad in the Blackboard course ‘Study & Internship Abroad - Faculty of Science’ (course ID 4ABROAD-0000FWN).

Go to the Blackboard course
Step 2

Complete the Study Abroad orientation form. Send this form to the Science International Office, Gloria Schildwacht:
outgoing@science.leidenuniv.nl. If you need further guidance, you can request an appointment to discuss your plans.

Step 3
Apply for a research project or internship by sending your host organization:

• Your motivation letter
• Your CV 
• A recommendation letter of a professor in Leiden who knows you well 
• Your latest transcript of records with a conversion table of your grades (in English). The Science International Office can make this transcript for you.

The Science Career Services offers a free CV and cover letter check during their walk-in hours. You might also want to use the Europass CV template, which you can easily upload on your LinkedIn profile.

Step 4
Are you welcome to join your host organisation? Ask the host organisation for an official letter of invitation, including the starting and ending date of your research project, a short project proposal (summary), the name & address of your supervisor and a signature. Please note: All research projects need to be supervised by a member of the academic staff + a representative of the host organisation providing the internship.

Step 5

Send the letter of invitation and project proposal to a Leiden staff member and ask if he/she is willing to act as home supervisor.

Ask permission of the Board of Examiners, via your study advisor. To use the credits abroad for your curriculum here, you will need to ask permission of the Board of Examiners after receiving your invitation. You can send them the official letter of invitation together with your motivation. Mentioned the amount of ECTS you expect to earn. 

Note: Biology students need to complete and send the 'Research Project Agreement’ which you can find on the Biology Brightspace course.

Step 6
Please remember to send a copy of the official invitation letter, project information + the permission of the Board of Examiners to the Science International Office. Visit the Science International Office for information on scholarships and further advice.

An internship abroad after graduation

You can also apply for an Erasmus+ grant for an internship within Europe after your graduation. Please note that if you want to apply for this grant, you need to find the internship and you need to be selected before your graduation. For more information, you can contact the Science International Office.

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