Regeneron's first international location opened in early 2013 in the heart of Dublin city centre. Today we are growing at a steady pace, with an international team that brings vast knowledge from their European and global experiences. Our mission is to advance the company's presence outside the U.S. and enhance our relationships with global partners and stakeholders.

The Dublin team is a multifunctional group consisting of clinical operations, regulatory affairs, external manufacturing, risk management, procurement and commercialisation, as well as finance and other administrative functions. This diverse group is working together to advance the treatments for patients with serious diseases around the world.


"Regeneron is a company that holds one of the most promising and innovative clinical pipelines in the industry. The opportunity to be part of the growing European team, to establish our profile as a company in the region and to help bring that rich pipeline to patients met all my personal career goals."

- Muriel O’Byrne, PhD, Vice President and Head of EU Regulatory Affairs & European Business Office

We offer opportunities to make an impact in the areas of:

  • Regulatory affairs
  • External manufacturing/contracts management
  • Risk management

Explore current openings


Muriel O’Byrne, PhD

Muriel O’Byrne, PhD

Muriel O’Byrne, PhD, Vice President and Head of EU Regulatory Affairs & European Business Office

Muriel has nearly 20 years of experience in the pharmaceutical industry gained from R&D roles with major players in the sector. She spent over 10 years based in London with GlaxoSmithKline and AstraZeneca before returning to Ireland to take up a senior level position with Elan. Muriel was one of the first employees in the Dublin office on joining in the summer of 2014. Since then she has contributed significantly to the growth of the office and the expansion of clinical development and regulatory affairs capabilities ex-U.S.

Muriel holds an Honours Bachelor of Science degree from University College Cork and a PhD from Trinity College Dublin, 12 months of which was spent at Oxford University as a collaboration with the MRC Anatomical Neuropharmacology Unit.


Europa House
Harcourt Centre
Harcourt Street
Dublin 2, D02 WR20
+353 (0)1 411 2200

Contact us for questions related to risk management, pharmacovigilance, commercialisation and finance.