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About the vacancy
Drug Development
About Your Next Job
We are looking for a highly motivated and enthusiastic student who loves bridging the gap between computer simulations and hands-on lab work. You are an analytical, critical thinker who enjoys solving complex technical puzzles. Being proactive and driven is in your DNA, and you have the great communication skills needed to thrive both independently and within a global, collaborative team.
About Your Next Colleagues
At Johnson & Johnson Innovative Medicine in Leiden are offering a unique internship opportunity for a motivated student eager to work at the interface of experimentation and modeling. Ready to shape the future of gene and cell therapies?
About Your Tasks and Responsibilities
During this 6-9 month internship, you will step into our Drug Product Development department to work on pioneering lentiviral vector manufacturing. Your main goal is to test and develop a predictive filtration model (TFF) to guide formulation and process development. You won't just sit behind a screen; you will actively jump into the laboratory to run validation experiments, blending data science with real-world research alongside expert scientists.
- Test and develop predictive models for normal and tangential flow filtration (TFF) applied to manufacturing.
- Perform specific experiments in the laboratory for model parameter regression and validation.
- Collaborate with global cross-functional teams to interpret simulation results and align them with business objectives.
- Learn how state-of-the-art gene and cell therapies are manufactured on an industrial scale.
- Gain deep, practical insights into advanced engineering applications within healthcare innovations.
About Your Skills and Experience
- You are enrolled in a Master’s university program pursuing Physics, Mechanical Engineering, Chemical Engineering, or a related science/engineering discipline.
- You have good communications skills in English.
- You have experience in data processing and computational tools like Python or MATLAB.
- You have critical thinking and analytical problem solving skills.
- You are available to work 40 hours per week for a duration of 6 to 9 months, starting around September 2026.
About Your Benefits
You are eligible to work in EU
We only accept applicants who are eligible to work in the EU
Contact person
Marjolein van Bommel
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At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured. A world where treatments are smarter, more innovative, less invasive, and solutions are personal.
Johnson & Johnson Innovative Medicine, leading where medicine is going
Patients will always inform and inspire our science-based innovations, which continue to change and save lives. Applying rigorous science with compassion, we will continue to confidently address the most complex diseases of our time and unlock the potential medicines of tomorrow. From our sites in Leiden, Sassenheim and Breda we are continuously working to develop treatments, aspiring to find cures, pioneering the path from lab to life, and championing patients every step of the way. Our diverse portfolio spans multiple therapeutic areas in Oncology, Immunology, Neuroscience, Cardiovascular, Pulmonary Hypertension, and Retina.
Johnson & Johnson MedTech, innovates at the intersection of biology and technology
Fueled by innovation at the intersection of biology and technology, we’re developing the next generation of smarter, less invasive, more personalized treatments. From advanced mapping and navigation to robotic assisted solutions, we are delivering care in the hardest to reach parts within the human body with a focus on Interventional Solutions, Orthopaedics, Surgery and Vision.
We are located in Leiden with a production facility for breast implants. In Groningen and Eindhoven we develop and produce intraocular lenses and ophthalmic surgical systems. From our organization based in Amersfoort we serve Dutch hospitals with our medical-technological products and services.