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Johnson & Johnson

Senior Gene and Cell Scientist

Posted Oct 30, 2025
Job ID: JJJP00023997
Location
Leiden
Hours/week
40 hrs/week
Timeline
1 year
Payrate range
Unknown

Senior Scientist Cell & Gene Therapy Method Development


Location: Leiden

Duration: 12 months

Hours: 32 - 40


Imagine your next project as a Senior Cell & Gene Scientist, working at the forefront of cutting edge work and technology with one of the leading Pharmaceutical companies in the world!

The Cell and Gene Therapy Analytics (CGTA) team is a dynamic group which is part of the Cell and Gene Therapy Analytical Development (CGT AD) in Leiden, responsible for developing methods to release our (viral) vector products (e.g. based on Adenovirus, AAV, lentivirus and RNA). Together, we use molecular, biochemical, separations and cell-based technologies to assess quantity, potency, purity, and identity characteristics of our products. We have a pivotal role between the process development, quality unit and regulatory authorities


roles and responsibilities

  • Actively shares technical expertise in biophysical technologies, such as liquid chromatography (LC), light scattering and capillary electrophoresis (CE), and biochemical technologies, such as ELISA, in order to drive selection and implementation of the most suitable technology. 

  • Enjoys working in a multidisciplinary team and driving method development using AQbD principles up to and including validation activities of the team as a whole.

  • Aims to shape the life cycle management from development up to and including validation of methods for release and stability of our products with accurate and precise hands-on experimental involvement. 

  • Acts as a technical lead to strengthen our product development strategy.

  • Has strong capabilities to collaborate with scientists across multiple disciplines.

  • Takes ownership as author in the preparation of presentations, reports and documents for regulatory filing and patents.

  • Supports the continuous improvement of an efficient and safe lab organization and contributing to data digitalization.


how to succeed

  • PhD degree (or equivalent) in analytical chemistry or life sciences or an MSc with at least 5 years of experience with analytical method development in the pharmaceutical industry. 

  • Deep understanding of separation-based and biochemical technologies and broad comprehension of method development principles for (viral) vector product development/commercialization process and GMP is required. In particular, the following:

    • Deep knowledge of separation-based and biochemical technologies, such as capillary or gel electrophoresis, liquid chromatography and ELISA, octet or MSD

  • Broad interest and scientific understanding of (viral) vectors

  • Proven strategic experimental design and practical lab skills

  • Preferably also, pharmaceutical experience in method development (according ICH Q2) and quality systems such as GMP for cell and gene therapy and/or vaccine products 

  • The candidate should have the following skills:

    • Assertive with a can do mentality

    • Great teammate

    • Organizational sensitivity and conflict resolution skills

    • Critical attitude valuing accuracy in the execution of your work and that of others

    • Excellent written and verbal communication skills in English

    • We value an ethical working environment, as described in our Credo, where trust, diversity and inclusion is the fundament for success



details

This role offers a very competitive hourly rate. This contract will run for a 12 month duration. This is an on-site position.


you are welcome here

Johnson & Johnson Innovative Medicine is working to create an inclusive environment where diverse backgrounds, perspectives, and experiences are valued and each and every one of our people feels that they belong and can reach their potential. No matter who they are.


about Johnson & Johnson Innovative Medicine

Patients inform and inspire our science-based innovations, which continue to change and save lives. Applying rigorous science and compassion, we confidently address some of the most complex diseases of our time and unlock the potential medicines of tomorrow.


Our diverse portfolio spans multiple therapeutic areas — Oncology, Immunology, Neuroscience, Cardiovascular, Pulmonary Hypertension, and Retina.

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.



application process

We are looking to process the first round of applications within the next 2 working days.

We do not accept applications via email. 


questions

If you would like some additional information about the role please contact: simone.strong@randstadsourceright.co.uk

Diversity, Equity & Inclusion

For more than 130 years, diversity, equity & inclusion (DEI) have been part of our cultural fabric at Johnson & Johnson and woven into how we do business every day. Our commitment to respect the dignity and diversity of all is embedded in our Credo.

We know that the success of our business depends on having the best talent in a workforce that reflects the diverse markets we serve around the world and an inclusive culture that values different perspectives and life experiences. That is why we are working to create an inclusive environment where diverse backgrounds, perspectives and experiences are valued and each one of our people feels that they belong and can reach their potential. No matter who they are. Diversity, Equity & Inclusion at Johnson & Johnson means “You Belong”.


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