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Merck & Co. · IRL - Meath - Dunboyne

# Sr. Spclst, Quality Assurance (Upstream)

IRL - Meath - Dunboyne Full-time Senior individual contributor Manufacturing & Production 

Listed on Merck & Co.’s official careers site. Posted October 24, 2026. Check that it is still open and apply there.
[Apply on Merck & Co.’s careers site →](https://msd.wd5.myworkdayjobs.com/SearchJobs/job/IRL---Meath---Dunboyne/Sr-Spclst--Quality-Assurance--Upstream-_R423341-1)

[OpenNash Jobs](https://jobs.opennash.com/) / [Merck & Co.](https://jobs.opennash.com/companies/merck-co/) / Sr. Spclst, Quality Assurance (Upstream)

## Job description

### Job Description

We have a wonderful opportunity for a Quality Assurance Senior Specialist (Upstream) our state-of-the-art, single-use, multi-product biotech facility in Dunboyne, County Meath, Ireland. The Senior QA Specialist role (Upstream) will be part of the Quality Assurance Operations Self-Directed Work Team in a state-of-the-art single-use multi-product biotech facility in Dunboyne. The Senior QA Specialist role will provide direct QA oversight of Upstream Drug Substance manufacturing processes and cell banking activities, including Manufacturing of Master Cell Bank (MCB) and Working Cell Bank (WCB) and lifecycle management.

The Senior Specialist will be responsible for maintaining cGMPs for assigned areas in conformance with policies and in compliance with cGMPs and Health Agency regulations and all other applicable governing regulations. Key Accountabilities ·QA Leadership and participation daily with cross-functional teams to collaboratively and actively address compliance issues. ·Participate in investigations related to deviations/complaints, ensuring appropriate actions are implemented timely. ·Provide QA review and approval of

Change Controls, Deviations/CAPAs, SOPs and related documentation to ensure compliance with cGMP and facility requirements. ·Complete QA operational Upstream and Cell banking duties and related release activities to ensure on time disposition. ·Evaluate new and prospective regulatory guidance and industry best practice and determine impact on Quality systems, identifying and implementing appropriate updates where required. ·Participate in and support risk management activities in line with relevant guidance and best industry practice. ·Provide support for QA oversight to the qualification/validation, technical transfers, regulatory approvals and commercial and clinical operations. ·Work collaboratively to foster strong relationships with management and mentor QA Operations

Upstream team to drive a safe and compliant driven Quality & Safety culture. ·Ensures the escalation of compliance risks to management in a timely manner.

Educational & Experience Requirements ·Degree or postgraduate qualification in Biochemistry, Biotechnology, Microbiology, or related discipline. ·7–10 years’ experience, ideally in Quality Assurance, Quality Control or Technical Operations within the Biological and/or pharmaceutical industry with direct oversight of Upstream processing and/or cell banking. ·Demonstrated knowledge and experience of Master Cell Bank / Working

Cell Bank management and Regulatory expectations, Aseptic processing and contamination control and GMP-compliant biologics manufacturing environments. ·Demonstrated experience in QRM, Investigations, Deviations, Problem solving as a Quality SME. ·Strong written and verbal communication skills with an ability to think logically and be proactive under pressure. ·Ability to work as part of a team and on own initiative in a constructive manner. ·Strong attention to detail and precision in preparing and reviewing GMP documentation. ·Demonstrated knowledge and application of industrial regulations related to Biologics and/or Pharmaceuticals. ·Experience in direct interactions with regulatory agencies during site inspections.

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: Audit Readiness, cGMP Regulations, Compliance Activities, Corrective Action Management, Deviation Management, Manufacturing Quality Control, Pharmaceutical Quality Assurance, Product Disposition, Quality Assurance Processes, Quality Management Standards, Regulatory Compliance 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: 11/6/2026 *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.

## At a glance
- Posted by the employer: Oct 24, 2026
- First seen by OpenNash: Oct 25, 2026
- Last checked: Nov 1, 2026
- Listed for: 8 days
- Location: IRL - Meath - Dunboyne
- Employment type: Full-time[Apply on Merck & Co.’s careers site →](https://msd.wd5.myworkdayjobs.com/SearchJobs/job/IRL---Meath---Dunboyne/Sr-Spclst--Quality-Assurance--Upstream-_R423341-1)

## Hiring at Merck & Co.
- Open jobs: 818
- New in the last 7 days: After two weekly collections
- Tracked since: Jul 10, 2026

[All Merck & Co. jobs](https://jobs.opennash.com/companies/merck-co/) · [Weekly hiring report](/reports/hiring/)

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