J&J Family of Companies Internship - Molecular Bioassay Development in Leiden, Netherlands

‘Caring for the world, one person at a time’… inspires and unites the people of Johnson & Johnson. We embrace research and science – bringing innovative ideas, products and services to advance the health and well-being of people.

Employees of the Johnson & Johnson Family of Companies work with partners in health care to touch the lives of over a billion people every day, throughout the world.

Looking for a career with a real impact? Be vital at Johnson & Johnson! Every day, we make a difference for patients and consumers around the world. With 117,000 employees worldwide, we’re active in no less than 57 countries.

Crucell, one of the Janssen Pharmaceutical Companies of Johnson & Johnson, is dedicated to bringing meaningful innovation to global health. Our teams focus on the discovery, development, manufacture and marketing of vaccines and antibodies to protect people worldwide from infectious diseases.

In our organization entrepreneurial people are working in a dynamic culture in which innovation and a 'can do' state of mind are the central points. In order to strengthen our team we are continuously looking for enthusiastic, talented people who have the ambition to develop themselves and can be of value to Janssen.

Department / project:

The Molecular Bioassay group is part of the Analytical Development (AD) group and is responsible for developing methods that are employed to analyze and characterize virus based vaccines. Product analysis includes tests for quantity, potency, purity, and identity, but also detailed structural characterization of vaccines.

We are looking for a motivated BSc/MSc student who is interested in doing an internship in a multidisciplinary team and is eager to work on development and optimization of molecular bioassays. The project focuses on development of an optimized PCR and cell culture based assay for measuring vaccine characteristics, possibly using liquid handling robot. For this project handling of biologically active substances is necessary. You will be supervised by an associate scientist and will be working in an international team. Furthermore you will be involved in daily activities within the MBA group, giving you the opportunity to learn about not only assay development but also vaccine development process in a multinational pharmaceutical company.


Minimum Qualifications:

We are looking for a Bachelor or Master student in the field of cell or molecular biology or other related area. Knowledge of (Q)PCR and culturing cells is required. Our preference goes out to students who are willing to stay for at least 6 months (40 hours/week).

Please note that you need a residence permit which states you are allowed to work in the Netherlands or a residence permit which states you are enrolled to a Dutch university if you want to apply for an internship at Janssen.


  • Written and oral communication skills in English

  • Accurate in practical work

  • Problem solving oriented and independent

What’s in it for you …?

Being a student is required for this internship.

Are you interested in this internship?

Please visit our jobsite www.careers.jnj.com, look for the requisition number 1700175543W and apply online.

Primaire locatie

Nederland-Zuid Holland-Leiden


Janssen Vaccines & Prevention BV (8852)



Requisition ID