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Salary
≈ $88k – $207k per year (Estimated)
Location
In office (Dunboyne)
Seniority
Staff · 6+ years exp
Visa
Sponsorship offered in the posting
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 2, 2026. First seen by Alion on Oct 29, 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 Aisling Capital, LAV

Job Description

An exciting new opportunity has arisen for a Downstream Process Science Lab Technical Lead in Dunboyne, Co. Meath.

This role is part of the Manufacturing Science and Technology (MS&T) group at our state-of-the-art, single-use, multi-product facility in Dunboyne. The Lab Technical Lead (Downstream) is responsible for contributing to the overall running of the Process Sciences Laboratory and working across site as part of a diverse and interdisciplinary team to build capability and knowledge in the manufacture of biologics at the site.

Key Responsibilities

·Management of a team of Downstream scientists involving the design, planning and execution of scale-down model establishment, satellite, and improvement studies in the Process Sciences Lab.

·Oversee the design and execution of small-scale studies which support Dunboyne site and CMO technology transfer, facility fit, process characterisation, and lifecycle change.

·Provide technical leadership for downstream studies supporting purification, filtration, viral clearance-related activities, UF/DF, formulation, and associated process optimisation work.

·Provision of technical expertise and leadership to support successful new product introduction across all Drug Substance programs at the site.

·Lead and coach others to solve problems and take new perspectives on existing solutions with a desire to continuously learn, improve and develop.

·Excellent troubleshooting and problem-solving skills as well as influencing, collaboration skills and teamworking ability to represent MS&T on global and interdisciplinary teams.

·Champion a proactive safety, quality, and compliance culture within all laboratory activities within an open and inclusive team culture.

Qualification & Experience Requirements

·A degree qualification in a relevant field (Science/Technical). An Advanced Degree (MSc or PhD) qualification is desirable.

·A minimum of 6 years’ experience working in biopharmaceutical development, manufacturing support, MS&T, process sciences, or technical operations, with experience in Downstream biologics operations.

·Strong understanding of GMP, regulatory expectations, data integrity, and quality systems relevant to laboratory and manufacturing support activities.

·Proven ability to interpret complex datasets, solve technical problems, and convert scientific findings into practical manufacturing actions.

·Effective communicator with the ability to think logically and be proactive under pressure and work as part of a cross-functional team.

Our facility in Dunboyne is a premier, state-of-the-art facility that enables and advances our best work. By integrating leading-edge technology with a dynamic, activity-based workspace, the facility supports seamless connection and collaboration within and across teams and functions. Our Dunboyne facility provides Biologics Drug Substance manufacturing for Clinical Supply, Registration, and Commercial Launch.

We keep the patient at the very heart of all that we do and strive to find solutions and treatments for some of the world’s most challenging healthcare needs. So, if you are ready to: Invent solutions to meet unmet healthcare needs, Impact the future by driving one of the world’s leading healthcare companies, and inspire your team to reach their full potential and push the boundaries of science and technology, please apply today.

Additional location(s) Compensation Information:

Required Skills:

Biologics, Biopharmaceuticals, Cell Cultures, Downstream Operations, Good Manufacturing Practices (GMP), Lab Processing, Manufacturing, Technology 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:

Not Applicable

Shift:

Valid Driving License:

Hazardous Material(s):

Job Posting End Date:

11/13/2026

*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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