• 30 oktober 2026
  • vacaturenummer: 757996

Are you a Master’s or university (WO) student fascinated by cutting-edge molecular biology, bioinformatics, and virus detection? Do you want to gain hands-on experience inside the lab of a global healthcare leader and contribute to the safety of life-saving medicines? Read on to know more!

€750 gross per month based on 40 hours

Develop your scientific and professional skills

Experience at a world-leading healthcare company

Daily mentorship from experienced QC specialists

Available for at least 6 months

Science Park in Leiden

For the internship Next Generation Sequencing you must meet the following requirements:

  • WO Bachelor's or Master’s in Molecular Biology, Bioinformatics, Biotechnology, Virology, or a related field
  • Practical lab experience in molecular biology (DNA/RNA techniques)
  • Fluent in English, both written and verbal
  • Willing to work in Leiden
  • Availabe for 40 hours per week

You will join the Quality Control (QC) department, specifically the Centre of Excellence for Adventitious Virus Assay (AVA) and Mycoplasma testing. This team plays a pivotal role in safeguarding the quality, safety, and efficacy of biological medicines before they reach patients around the world. The department fosters a culture of ongoing learning, innovation, and scientific rigor.

As an intern, you will contribute directly to a high-impact project: optimizing a method to detect viral contaminants in the production of biological medicines using Next-Generation Sequencing (NGS). You will bridge wet-lab experimentation with data analysis.

Your daily activities include:

  • Planning and conducting molecular biology experiments in the laboratory
  • Analyzing sequencing datasets and designing follow-up experiments based on your findings
  • Reviewing relevant scientific literature to identify novel methods, approaches, and insights
  • Maintaining accurate, compliant documentation of all experimental procedures, results, and deviations
  • Developing internal training materials to share your knowledge with the team
  • Writing your thesis (if applicable, in alignment with your university program)

At Johnson & Johnson, we turn cutting-edge science into life-saving treatments. You will join the Quality Control (QC) Centre of Excellence at our state-of-the-art site in Leiden. Here, you'll work within an open, international team dedicated to safeguarding medicine quality and driving lab innovation.

  • Contribute to life-saving medicines at a world-leading healthcare pioneer
  • Grow fast with hands-on mentorship and training
  • Work with cutting-edge lab technologies every day

Does this sound like your ideal Internship? Apply with your CV and we will contact you!