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Salary
≈ $46k – $93k per year (Estimated)
Location
Hybrid (Carlow, Ireland)
Seniority
Junior · 2+ years exp
Visa
Sponsorship offered in the posting
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 23, 2026. First seen by Alion on Oct 8, 2026. Merck & Co. scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Merck & Co. is an American pharmaceutical company founded in 1891 as the United States arm of the German firm Merck and made independent after the First World War, trading as MSD outside the United States and Canada. Its portfolio is dominated by the immuno-oncology drug Keytruda, alongside vaccines such as Gardasil and Vaxneuvance, hospital acute care products, and a large animal health business covering livestock and companion animals. The company is headquartered in Rahway, New Jersey, listed on the New York Stock Exchange, and spends a very large share of revenue on research into oncology, infectious disease and cardiometabolic therapies.
Backed by LAV, Aisling Capital

Job Description

Our Carlow site, which broke ground in 2008, is a strategic manufacturing facility supporting the launch and commercial supply of vaccines, biologics, and small molecule drug products.

Since its establishment, the site has benefited from significant investment and is home to state-of-the-art manufacturing facilities, laboratories, and temperature-controlled warehousing. As a major employer in the Southeast region, the Carlow site attracts high-performing talent through strong collaborations with local universities and colleges.

We are currently seeking an Analytical Sciences associate specialist to join the team, you will be responsible for supporting Analytical Procedure Life Cycle through end-to-end method lifecycle management; including introduction of new analytical methods, analytical transfers, SME assessment for all analytical method & equipment performance qualification, investigations, product testing and technical rationale.

This work will support pipeline and commercial products by utilizing expertise in the analytical areas of separations and biochemistry.

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

  • New method introduction (Validation /Tech Transfer).
  • New technology introduction.
  • Assessment and implementation of changes for existing methods and equipment: Change in technical element of method e.g. Parameter change, Change in equipment element of method e.g., column/reagent change.
  • Method troubleshooting where cross-functional investigation is required.
  • Technical SME for regulatory questions, audit support, reagent changes / supply issues to provided justification / rationale for analytical methods and equipment.
  • Technical review of impact on Analytical methods and equipment as part of cross-functional team assessment of new/revised Global Test method / Compendia changes or updates.
  • Analytical equipment troubleshooting.
  • Initial training of end users in QC and Manufacturing and training of site analytical sciences personnel on lab systems, processes and methods where agreed.
  • Investigation support for lab investigations.
  • Authoring technical documentation in support of investigation and regulatory responses.
  • Technical Impact Assessment of proposed and finalized compendial changes.
  • Development and ownership of change control for new analytical methods.
  • Routine Assay Monitoring and lifecycle management of analytical methods.
  • Supporting digital method development.

What Skills You Will Need

  • Bachelor’s degree in science or equivalent experience.
  • 2-3 years relevant experience in the pharma industry.
  • Strong troubleshooting experience
  • Excellent communication skills to build strong cross functional relationships

We keep patients at the heart of everything we do and are committed to addressing some of the world's most challenging healthcare needs through scientific innovation and operational excellence.

As an equal opportunity employer, we value diversity and are committed to fostering an inclusive environment where talented and committed people can thrive and contribute their best work.

Should you require support during the recruitment process, please contact the Talent Acquisition Advisor assigned to this role.

We are committed to flexible working wherever possible and have introduced a hybrid working model for eligible office-based employees. We encourage candidates to discuss any flexibility requirements during the recruitment process.

Required Skills:

Analytical Assays, Analytical Functions, Analytical Method Transfer, Analytical Testing, Assay Development, Laboratory Techniques, Method Development, Method Validation, Technical Transfer

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:

Hybrid

Shift:

Valid Driving License:

Hazardous Material(s):

Job Posting End Date:

10/26/2026

*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.

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