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Associate Principal Scientist, Microbiology AR&D (2nd Shift)

MSD
United StatesRemotefull_timeVerifiedPosted 4 May 2026
💰 $224,100/yr($142,400/yr$224,100/yr)

About the role

Job Description

The role is on-site, based in Rahway, NJ and will support our second shift operations which operate from 3:00 PM EST to 11PM EST.

Join us and experience our culture first-hand one of strong ethics & integrity, diversified experiences, exceptional science, and a resounding passion for improving human health. As part of our global team, you will have the opportunity to collaborate with talented and dedicated colleagues while developing and expanding your career.

In the role of Associate Principal Scientist, you will be a key member of the Analytical Research and Development Microbiology team, supporting a rapidly expanding pipeline through close collaboration with cross‑functional stakeholders. This role is responsible for generating and delivering critical microbiology data within a GMP laboratory setting, including finished product testing, utilities monitoring, and environmental monitoring.

Working within a fast‑paced, integrated, and multidisciplinary environment, the Associate Principal Scientist is expected to demonstrate strong proficiency in GMP microbiology laboratory practices, including microbiological data review, quality procedures, and compliance expectations.

In this role, you will be accountable for building and sustaining a scientifically sound, risk‑based, and inspection‑ready microbiology program by integrating Environmental Monitoring and Product Testing into a comprehensive contamination control strategy.


Primary Responsibilities

  • Lead the execution of microbiology finished product testing, utilities, and environmental monitoring in GMP environment

  • Leverage QC microbiology expertise as a subject matter expert in support of sterile operations within the quality control department including isolator qualifications, sterility testing, biological indicator challenge tests, and method suitability, endotoxin, microbial enumeration, media / reagent quality control testing, mycoplasma.

  • Directly contribute to experimental design of special studies in support of aseptic operations, execution, authoring and trend analysis of environmental monitoring and utilities trend reports.

  • Deep knowledge of risk-based assessment, Environmental Monitoring Performance Qualification (EMPQ), Clean Utilities Monitoring and contamination control strategies is essential. These skills ensure robust identification and mitigation of potential risks, as well as the implementation of comprehensive monitoring and preventive measures to maintain product integrity and regulatory compliance.

  • Experience with testing in clean room environments and Aseptic  process validation preferred

  • Drive experimental design, execution, and data interpretation of microbiology data.

  • Oversee the execution, procedure, results, and conclusions of experiments in a detailed and organized manner following ALCOA and data integrity principle.

  • Execute test method suitability studies and implement microbiology methods to support release and stability testing of small molecule, biologic, and vaccines finished drug products.

  • Troubleshoot and lead any investigations associated with GMP testing through active collaboration with cross-functional project teams and/or Quality stakeholders. Identify appropriate corrective and preventative actions.

  • Partner with internal stakeholders and partners including Quality, Pipeline, and Operations.

  • Supervise microbiology testing, data entry, data review, equipment, lab inventory and author /approve  reports and data summaries.

  • Conduct project management and/or scientific oversight of studies performed at Contract Laboratories

  • Contribute expertise and creativity to the collective knowledge and aid in solving complex problems.

  • Participate in internal and external compliance audit activities.

  • Perform additional duties as assigned.
     

Education Minimum Requirements

  • Minimum 4 years of pharmaceutical industry experience for applicants with a PhD degree; 10 years of experience with a MS degree, or 12 years of experience with a BS in Microbiology or related Biological Sciences, or equivalent with microbiological testing experience.

Required Experience and Skills

  • A proven record of strong technical problem solving and laboratory experience. Excellent written and oral communication skills, as well as interpersonal skills, are necessary to qualify for this role.

  • Extensive knowledge and experience of microbiology testing in context of, environmental monitoring program leadership – own and continuously improve the site EM program in alignment with EU GMP Annex 1a

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Company

MSD

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