Working Here

The largest biotech
facility in Ireland

What’s it like working at one of the world’s most innovative biotech companies?

In 2013, we established the European Business office, built the biggest bulk biologics facility in Ireland, hired over 1,400 people in Dublin and Limerick and received EU and US regulatory approvals to manufacture our medicines for commercial sale. Fueled by our robust pipeline and inspired by a relentless focus on science, we are united in our quest to deliver life-transforming medicines for patients with serious diseases.

Regeneron is a company where employees get the opportunities of a start-up mentality, with the perks of working for one of the most established and best employers in healthcare. Find out what it means to be on a mission to turn science into medicine.

Working at the largest biotech facility in Ireland
Sheelagh Considine - Manufacturing.
Sheelagh Considine


“What I love most about working at Regeneron is our commitment to cutting-edge science. It is so rewarding knowing that we impact the lives of millions of patients. I enjoy the flexibility and work/life balance I experience due to my shift pattern. We have two gyms, an onsite beautician, fantastic food and our very own Roche Castle and Woodlands Walkway, where you can have a walking meeting. There are so many benefits to working at this company!”

Hear from employees

Anna Kennedy

Driven by culture

“Regeneron has a strong safety culture. Everyday activities are done with the intention of keeping everyone as safe as possible while on site. People approach tasks with a real ‘can-do’ attitude and teamwork is critical to our success.”

Eamon Heaney

Driven by ambition

“After returning to college and making a pivotal career change, joining Regeneron at our state-of-the-art facility in Limerick was the best career decision I have ever made. I enjoy the flexibility that comes with working my current shift pattern. I feel energised and excited coming to work, knowing the difference we make to the lives of so many patients around the globe.”

Chinnie Nwandu-Ryan
Clinical Category Management

Driven by purpose

“Regeneron has a patient-centric culture. This matches my ‘why’ for doing what I do for a living; to make a difference where it truly matters ... in the lives of our patients.”

Erica Gunnigle
Talent Acquisition

Driven by purpose

“I love working for Regeneron! We are creating something extraordinary together. Driven by our mission of getting medicines to patients, there is a real sense of 'we’re all in this together.'”

Meet our employees

Video thumbnail featuring Oisin Hickey.

DITL | Oisin Hickey

Video thumbnail featuring Mary McKenna.

HIBS | Mary McKenna

Why Mid-West?

We chose Limerick as the location for our first-ever overseas manufacturing site to accommodate rapid growth and an expanding pipeline of medicines. Its central location allows our employees to choose to live nearby or enjoy an easy commute.

We asked our colleagues why they like living in the Mid-West. This is what they told us:

“A vibrant and thriving city full of culture and with a strong sporting heritage. The shopping, nightlife, and proximity to the Wild Atlantic corridor are all attractions that make Limerick a great place to live and work.”

Why Mid-West?
Why Mid-West?

“Limerick is a fantastic city in which to raise a family. There are several great schools and the third level institutions are ranked as best in class.”

“Limerick is so accessible, with a fantastic road network and it is centrally located in the Mid-West region. Shannon airport is on our doorstep.”

Why Mid-West?
Why Mid-West?
Four separate images of Regeneron employees participating at different events.
Regeneron colleagues like Limerick for its vibrance
An easy commute

Regeneron employee Ian O’Callaghan, Executive Director Sourcing, talks about the benefits of our location in Raheen Business Park and his stress-free commute to work from the Midlands.

Along Dublin’s Historic Grand Canal

Located in Dublin's City Centre, along the Grand Canal and surrounded by Ireland's famous historical architecture, unmistakable culture and cosmopolitan feel, Regeneron's Dublin office is a diverse and vibrant workplace.

Established in 2013, the office has grown to more than 100 employees with expertise in regulatory, commercial, HR, corporate affairs, manufacturing (IOPS), financial services, global development and IT. Our teams work globally to help bring life-saving medicines to our patients.