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Salary
$45k – $98k per year (Estimated)
Location
Remote/Hybrid (Tipperary, Ireland)
Seniority
Junior · 1+ year exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 23, 2026. First seen by Alion on Sep 23, 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.

Job Description

A fantastic opportunity has arisen for a Process Engineer to support manufacturing operations, continuous improvement and innovation across internal and external manufacturing activities. This role will play an important part in supporting new product introductions, technical transfers and process development activities within an API manufacturing environment.

What you will do

Bring energy, technical knowledge and innovation to the role by supporting the following activities:

  • Act as a key contributor to new product introduction and technical transfer activities to and from the site, including the introduction of new technologies.
  • Work as part of a multifunctional and diverse team to deliver project objectives within agreed schedules and product launch milestones.
  • Support day-to-day development plans across projects, working closely with global Research and Development partners.
  • Contribute to the evaluation of raw materials, process fit assessments, optimisation and development of chemical API processes.
  • Participate in campaign preparation, safety and environmental reviews, batch sheet reviews, regulatory and validation compliance activities, process monitoring, cycle-time studies, deviation investigations and filing strategy development.
  • Apply technical problem-solving skills to investigate issues, identify root causes and deliver effective, compliant solutions.
  • Provide subject matter expertise in API processing unit operations and scale-up opportunities.
  • Identify and address technical constraints to support successful process demonstration through piloting and validation.
  • Communicate effectively across functions and organisational boundaries, providing clear technical guidance to colleagues at all levels.
  • Demonstrate a professional, reliable and collaborative approach, with a strong commitment to quality, compliance and continuous improvement.

What skills you will need

To be successful in this role, you will most likely have:

  • A degree in Science, Engineering or a related discipline.
  • A minimum of one year’s post-graduation experience or knowledge in pharmaceutical API manufacturing, process development or a related technical environment.
  • Experience in process modelling, process simulation and/or data analytics would be an advantage.
  • A self-motivated approach with the ability to influence and support others in implementing improvement initiatives.
  • Strong personal integrity, credibility and energy.
  • Excellent communication and interpersonal skills, with the ability to work effectively as part of diverse, cross-functional teams.
  • A practical and solutions-focused mindset, with a commitment to safe, compliant and reliable delivery.

Required Skills:

Chemical Engineering, Data Analysis, Engineering Design, Engineering Standards, Estimation and Planning, Industrial Engineering, Manufacturing Equipment, Manufacturing Scale-Up, Problem Solving, Process Improvements, Professional Engineering, Project Management, Self Motivation, Teamwork, Technical Writing

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:

10/5/2026

*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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