J&J Family of Companies Scientist Analytical Development in Leiden, Netherlands

Janssen Vaccines & Prevention, previously 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.

For our department in Leiden we are looking for an enthusiastic

Scientist (Analytical Assays group)

Location: Leiden

Hours: 40


The Analytical Assays group is part of the Analytical Development (AD) group and is responsible for developing analytical methods that are employed for the analysis and biophysical characterization of virus based vaccines. Product analysis includes tests for quantity, potency, purity, and identity, but also detailed structural characterization of vaccines. The Analytical Development group, which is part of the pharmaceutical and analytical department, has a pivotal role between the regulatory authorities, quality unit, and process development. In addition, the AD department supports other departments (formulation, Upstream and Downstream processing development) by routine sample analysis.

Job description:

We are looking for a motivated scientist who enjoys working in a multidisciplinary team. Your main responsibilities will be to lead the development and validation of analytical methods used for release and physicochemical characterization of clinical trial material, as well as providing extensive theoretical and hands on expertise in developing analytical methods suitable for process development and stability assessment. Connecting with experts and effectively leveraging knowledge of others will be critical to meeting project and budget expectations. In addition, with your expertise you will provide analytical input into vaccine projects, drive continuous improvements, as well as train and supervise junior members of the team.


Minimum Qualifications:

  • PhD degree in a relevant scientific discipline or equivalent experience

  • Experience in late stage clinical and commercial analytical method validation

  • Theoretical and hands on experience (3-5 years) as a specialist in analytical method development

  • Experience in techniques such as LC, CE, FFF-MALS, DLS, and AUC

  • Understanding of analytical quality by design

  • Experience working under GMP


The successful candidate has a flexible work attitude, a can-do mentality, and an innovative approach to problem solving. He/she enjoys working in a team that is eager to extend their knowledge of new technologies. Strong communication skills and ability to work in a team are equally important as independent planning and execution of tasks. Finally, he/she is critical and values accuracy in the execution of hands on work.

What’s in it for you…?

“Caring for the world, one person at a time…”

As an employee we consider you as our most valuable asset. We take your career seriously.

As part of a global team in an innovative environment your development is key and our day-to-day responsibility.

Through e-university, on the job training, various projects and programs, we ensure your personal growth.

Our benefits make sure we care for you and your family now and in the future.

Primary Location

Netherlands-South Holland-Leiden


Janssen Vaccines & Prevention BV (8852)

Job Function


Requisition ID