Job Openings

ISA Pharmaceuticals is always looking for highly qualified, enthusiastic and entrepreneurial people to join its R&D team in particular. ISA values people who are excited about what they do, have high standards of integrity and can motivate themselves and those around them to achieve results.

If you want to play a role in improving clinical outcomes for patients and to help build a rapidly growing and successful company, then we would like to hear from you.

For further information, please contact Gerben Moolhuizen at


Founded in 2004, ISA Pharmaceuticals is a privately held company based in Leiden, the Netherlands. With a dedicated team of 25 professionals, ISA focuses on the development of immunotherapies for the treatment of cancer and persistent viral infections. ISA’s immunotherapy platform is based on its proprietary SLP® (synthetic long peptide) and AMPLIVANT® technologies. Various clinical trials up to completion of Phase II have demonstrated the safety, tolerability and clinical efficacy of SLP® immunotherapies. ISA’s lead product is entering pivotal clinical trials. Because of our ongoing expansion we have the following job opening:

Scientist Immunology

Your challenges are to participate in projects in the exciting field of cancer immunotherapy, to optimize in-house therapeutic vaccine  technologies and to develop and investigate new (bio)assays and techniques to assess the biological activity of our products. In addition, you will coordinate projects running in the biology lab and in external collaborations, guiding timelines as well as discussing and interpreting data.

You have a MSc-degree or hold a PhD in Biology or in a Life Sciences-related area, you have significant hands-on experience with development of immunological cell-based bio-assays and in vivo tumor models. You are a flexible person with good communication skills who acts as a team player and is able to work accurately. Experience in working with adjuvant systems and vaccine design, flow cytometry, multiplex cytokine analyses and familiarity with quality systems are strong advantages.

We offer you a challenging position in a rapidly developing organization. You will be part of a team of top professionals, work with state of the art equipment and technologies in an inspiring environment with opportunities for personal and professional growth.

For further information on this job opening and related career opportunities, please contact Willem-Jan Krebber at or +31 71 3322310. Acquisition based on this advertisement is not appreciated.