QC Potency Analyst

Job Description

An amazing opportunity has arisen for a QC Potency Analyst, at our newest state-of-the-art, fully integrated vaccine facility in Dundalk Ireland.

In this position you will perform cell culture/banking, cell-based potency assay, qPCR assay and lab maintenance duties in accordance with relevant SOPs, analytical method protocols (AMPs), and cGMP regulations, in our QC Potency lab.

What you will do:

Bring energy, knowledge, innovation to carry out the following:

• Perform cell culture, cell banking, sample testing, and equipment maintenance according to relevant SOP, AMP, and cGMP requirements
• Manage reagents and consumables inventory.
• Maintain a clean, safe and organized laboratory environment adhering to Environmental Health and Safety guidelines.
• Perform method development, optimization, and validation of potency assay
• Perform/Document/Review lab work and results promptly, clearly, and accurately
• Participate in drafting of analytical methods, testing protocols, reports and other technical documents.
• Perform appropriate GMP training and maintain compliance and high-quality standards.
• Ability to work both independently and within a team to achieve objectives.

What skills you will need:

In order to excel in this role, you will more than likely have:

• BSc., MSc or PhD in Immunology, Virology, Chemistry, Biochemistry, Microbiology, Molecular Biology, Biological Engineering, Analytical Science, or a related field.
• Critical thinking, scientific reasoning, and problem-solving skills.
• Excellent communication and collaboration skills.
• Ability to adapt to changing priorities and manage multiple tasks.
• Detail-oriented and organized, with the capacity to work under pressure.

Preferred:

• Previous experience in GMP QC environment would be an advantage.
• Experience with vaccines/viral testing and biosafety containment levels, preferably BSL-2 or 3 would be an advantage.

As a cutting-edge, state-of-the-art vaccines facility spanning over 15,500 square metres across three stories, our Dundalk site will focus on qualification, continued product development and expanding its capabilities within our network. Featuring drug substance manufacturing, drug product manufacturing and quality control labs that will support the global supply of vaccine products - strengthening our ability to make an impact on people and patients worldwide by adding new capabilities to our already industry-leading network.

Required Skills:

Biochemistry, Biological Engineering, Cell Cultures, Equipment Maintenance, GMP Compliance, Microbiology, Molecular Biology, Virology

Preferred Skills:

Current Employees apply HERE

Current Contingent Workers apply HERE

Search Firm Representatives Please Read Carefully 
Merck & Co., Inc., Rahway, NJ, USA, also known as Merck Sharp & Dohme LLC, Rahway, NJ, USA, does not accept unsolicited assistance from search firms for employment opportunities. All CVs / resumes submitted by search firms to any employee at our company without a valid written search agreement in place for this position will be deemed the sole property of our company.  No fee will be paid in the event a candidate is hired by our company as a result of an agency referral where no pre-existing agreement is in place. Where agency agreements are in place, introductions are position specific. Please, no phone calls or emails. 

Employee Status:

Regular

Relocation:

VISA Sponsorship:

Travel Requirements:

Flexible Work Arrangements:

Not Applicable

Shift:

Valid Driving License:

Hazardous Material(s):

Job Posting End Date:

06/1/2026

*A job posting is effective until 11:59:59PM on the day BEFORE the listed job posting end date. Please ensure you apply to a job posting no later than the day BEFORE the job posting end date.