• 10 april 2026
  • vacaturenummer: 733802

Do you want to contribute to the development of alternative chromatography processes? Ready to join the Advanced Therapies API Process Development department at Johnson & Johnson Innovative Medicine? Then you are the intern we’re looking for!

€750 internship (40 hours) allowance per month

Work onsite at BioScience park, Leiden

Build your network across J&J

Develop your personal and business skills

Improve your knowledge with theory and practice

Work in pharmacy with international colleagues

You are a WO master student who can start as soon as possible. You are available for a minimum of 6 months and 32 to 40 hours per week. You can work full-time onsite (4 lab days and 1 desk day).

  • WO master student in biotechnology, bioprocess development, biochemistry;
  • Problem-solving skills;
  • Able to work independently as well as part of a team;
  • Flexibility to adapt to business needs;
  • Fluent in English, both verbally and in writing;
  • Good communication and ensure you escalate the issue in a timely manner;
  • Affinity for purification.

The Advanced Therapies API (Active Pharmaceutical Ingredient) Process Development department designs and develops scalable manufacturing processes for a diverse panel of pharmaceutical products. Our work spans the full workflow from cell culture through downstream purification. We partner closely with our local pilot plant, to enable production of innovative therapies for clinical evaluation.

  • Utilize displacement chromatography to achieve high-resolution separation of biomolecules with small differences in affinity;
  • Develop a proof-of-concept application for potential implementation within large-scale production processes;
  • Design and execute experiments to effectively separate pharmaceutical biomolecules from impurities;
  • Evaluate alternative chromatography configurations, specifically focusing on Displacement Chromatography, to expand our technical toolbox.

Johnson & Johnson is a global healthcare company dedicated to bringing meaningful innovation to health. Our business focuses on the discovery, development, manufacture, and marketing of medical technologies and pharmaceuticals. In our organization, entrepreneurial people thrive in a dynamic culture where innovation and J&J mindset are central.

  • Guided by the famous J&J Credo, we prioritize our patients, customers, and employees. Join a company built on a strong ethical foundation;
  • We invest in your professional development, offering ample training and opportunities to grow both your technical skills and leadership abilities;
  • A pleasant, modern environment that's professional yet informal. Easily connect and exchange ideas with colleagues;
  • Join an inclusive environment where your unique perspective is welcomed. We believe diverse voices drive better innovation.

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