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Johnson & Johnson

NL - Assistant Scientist Clinical Immunology

Posted Oct 4, 2021
Job ID: JJJP00007907
1 year
(Oct 4, 2021 - Oct 3, 2022)
40 hrs/week
Payrate range

Johnson & Johnson Worksense (via Randstad Sourceright) is responsible for finding, engaging and contracting talent for the Johnson & Johnson contingent workforce.

The Clinical Immunology department is responsible for the immunological evaluation of vaccine candidates in clinical trials. Hereto, the department delivers data, which defines the immunological strategy supporting the clinical development. This includes next to clinical sample analysis, development and validation of the required immunological assays. Typical assays to determine the immunogenicity of vaccines are the antibody ELISA, Virus Neutralization Assays, T cell ELISpot, and Intracellular Cytokine Staining.

Job Description:

  • As assistant scientist you will report to the Operations team lead for training and job performance. 
  • You will perform the serological immuno-assays (ELISA, Virus Neutralization Assay) or cellular assays (Elispot) needed to deliver the immunological data for clinical studies and support the development of assays needed for clinical sample analysis. 
  • The activities will be performed in a GCLP accredited lab, meaning that all activities must follow prescribed procedures, and must be documented accurately in (digital) lab note books. 
  • For every finished experiment you will report the data to the scientist, who does the scientific review of the experiments. 
  • In case of development, you will discuss the outcome and plan for follow up experiments.



  • MLO/HLO,  BSc or Msc in a relevant field. (PhD candidates are overqualified and will not be considered.)
  • Relevant experience in serological immuno-assays (ELISA / Virus Neutralization assays) and/or cellular assays (ICS/Elispot).
  • Must have experience working (internship acceptable) in GLP, GCLP, GMP, CCKL (or other lab related quality system, focusing on traceability) regulated environment.
  • Affinity with operational excellence.
  • Affinity with automated systems such as LIMS.
  • Experience with pipetting robots such as TECAN is a plus.
  • Should be a pro-active team worker who can work independently when needed.



  • You will work on-site in Leiden.
  • This is a contracting position, with the possibility of an extension after the end date. You will receive a contract via our partner YACHT. They can offer you a contract for the duration of the assignment at J&J, a one year contract or a freelance contract (ZZP).

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