Scientist Viral & Microbial Safety

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Job Description


The Analytical Development department within Janssen Vaccines Leiden (one of the pharmaceutical companies of Johnson & Johnson) is responsible for developing methods that are required for analysis of vaccines for human use. Analysis includes testing for identity, quantity, potency, purity and contamination; in particular, extraneous agents safety.


Job description

We are looking for a highly motivated Scientist who enjoys working in a multidisciplinary team, has excellent writing skills, and has knowledge of/experience with:

  • Extraneous agents (e.g., prions/TSE, viruses and/or microbes)
  • Development and validation of cell-culture based and molecular methods (e.g., mammalian cell culture, PCR, sequencing)
  • cGXP and/or other quality management systems
  • Biopharmaceutical manufacturing
  • Regulatory filings

This individual will be responsible for the extraneous agents safety of products developed by Janssen Vaccines Leiden. Furthermore, this individual will ensure method development and validation of in-process control and release methods to be conducted at GMP level in-house and at contract laboratories.


Demonstrating flawless documentation, effective communication with varied levels of the organization, a strong sense of responsibility and a passion for quality are key competences for this position.


Minimum Qualifications

  • PhD-degree
  • At least 5 years of experience with method development
  • At least 3 year of experience with cGXP and/or other quality management systems
  • At least 1 year of experience with regulatory fillings
  • Speaks and writes fluent English

Primary Location
Netherlands-South Holland-Leiden-
Janssen Vaccines & Prevention BV (8852)
Job Function
Requisition ID