Principal Facilities Engineer

regeneron· Regeneron Ireland
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📍 LimerickFull time💰 EUR 63K–103K

About this role

Build our future together:

At Regeneron, we use science and innovation to develop life-changing medicines for people with serious diseases. Regeneron is currently seeking a Principal Facilities Engineer to join our Facilities Operations, Utilities & HVAC team.

This position offers the opportunity to contribute to a fast-growing, science-driven organization making a meaningful difference to patients worldwide.

When & where:

  • Location: Raheen, Limerick

What you’ll do:

  • Designing and specifying cGMP clean/grey utilities, & HVAC equipment, piping, ducting and/or controls
  • Managing small-to-mid sized projects related to utilities & HVAC equipment & services
  • Conducting troubleshooting for complex issues with plant equipment issues and associated systems, identifying and recommending corrective actions
  • Assisting in the design review, site acceptance and installation of equipment
  • Supporting the QA Validation department by preparation of design documents and assists in protocol execution
  • Assisting in investigations of utility systems, and control system anomalies as well as safety incidents
  • Implementing corrective/preventative actions for existing equipment and maintenance processes
  • Preparing engineering evaluations and test plans for and executes modification change control documentation
  • Interpreting P&IDs, equipment/system layouts, wiring diagrams and specifications in planning and performing maintenance and repairs
  • Maintaining company reputation by enforcing compliance with all relevant laws, policies and regulations

The environment and physical rhythms of this role:

  • You have strong analytical and interpersonal skills
  • You are able to prioritise and re-prioritise as needed and adapt to change
  • You are comfortable working in a fast-paced setting

Let’s find out if we’re a fit:

  • Principal - Requires BS/BA in Mechanical engineering with 8+ years of relevant experience or equivalent combination of education and experience.

Thrive today. Grow tomorrow.

#IRELIM #JOBSIEST #LI-Onsite

Does this sound like you? Apply now to take your first step towards living the Regeneron Way! We are committed to building a workplace with an inclusive culture. Regeneron is an equal opportunity employer and all  qualified applicants will receive consideration for employment without regard to race, color, religion or belief (or lack thereof), sex, sexual orientation, gender identity or expression, gender reassignment, marital or civil partnership status, civil status, pregnancy or parental status, age, disability, nationality, citizenship status, ethnic or national origin, membership of the Traveler community, familial status, genetic information, military or veteran status, or any other characteristic protected under applicable law. Where required, we will provide reasonable accommodation to applicants with known disabilities or chronic illnesses during the recruitment process, unless such accommodation would impose undue hardship.

 

Where necessary, we disclose salary ranges for roles in all countries in which we operate.  The final offer will be determined within the relevant range based on the country of employment, specific role level, and your skills and experience. In some countries, collective bargaining agreements (CBAs) may apply and influence certain elements of pay or benefits.  Regeneron offers a competitive and comprehensive total rewards package which may include, depending on country and role: annual bonuses or other incentive plans, equity awards, pension or retirement benefits, 401(k) company match, health and wellness programs, fitness centers, insurance benefits (e.g. medical, dental, vision, life and disability), paid time off, and family support benefits. For additional information about Regeneron benefits in the U.S., please visit https://careers.regeneron.com/en/working-at-regeneron/total-rewards/. For other locations, additional information will be provided during the recruitment process.  If you have any questions, please speak with your recruiter. 


Please be advised that at Regeneron, we believe we do our best work when we are together. For that reason, many roles are required to be performed on‑site. Please speak with your recruiter and hiring manager for more information about on‑site expectations for your role and location.


As part of the recruitment process, certain background checks may be conducted in accordance with the laws of the country where the position is based. The purpose of such checks is to verify certain information prior to the commencement of employment such as identity, right to work and educational qualifications.


For jobs in Canada: this posting is for an existing position.


Salary Range (annually)

€63,200.00 - €103,200.00

Frequently Asked Questions

What is the salary for the Principal Facilities Engineer role at regeneron?
The listed salary for this Principal Facilities Engineer position at regeneron is EUR 63K–103K. This is an Full time role.
Where is the Principal Facilities Engineer position at regeneron located?
This Principal Facilities Engineer role at regeneron is based in Limerick. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Principal Facilities Engineer role at regeneron full-time or part-time?
This is listed as a Full time position. It is posted as a Principal Facilities Engineer role in the Regeneron Ireland department at regeneron.
Which team or department does the Principal Facilities Engineer at regeneron belong to?
This Principal Facilities Engineer position is part of the Regeneron Ireland department at regeneron. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Principal Facilities Engineer position at regeneron?
Click the "Apply Now" button on this page. You will be redirected to regeneron's official application portal hosted on workday where you can submit your application directly.
When was the Principal Facilities Engineer job at regeneron posted?
This Principal Facilities Engineer position at regeneron was posted on Sep 8, 2026. Apply as soon as possible — early applications are often reviewed first.
Principal Facilities Engineer
regeneron · 💰 EUR 63K–103K
Apply for this role ↗

You'll be redirected to regeneron's official application page on Workday.