Merck & Co, Inc

Sr. Scientist, Analytical R&D- Microbiologist (Onsite)

Merck & Co, Inc$117K — $184K *
Pharmaceuticals & Biotech
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Degree in Microbiology or related Biological Sciences, or equivalent with microbiological testing experience.
  • BS Degree with 7+ years of pharmaceutical industry experience, MS Degree with 4+ years, or Ph.D. with 1+ year.
  • Proven record of strong technical problem solving and laboratory experience.
  • Extensive knowledge of microbiology testing in GMP environments.
  • Experience in leading quality investigations in microbiology.

Responsibilities

  • Schedule and lead environmental monitoring and microbiological testing activities in a GMP lab.
  • Provide QC microbiology expertise for sterile/nonsterile operations.
  • Manage the environmental monitoring program, including risk assessment and sampling.
  • Oversee environmental monitoring of utilities, ensuring verified performance.
  • Lead investigations of EM excursions and CAPA management.
  • Design special studies and author trend reports for environmental monitoring.
  • Collaborate with internal stakeholders across departments.

Benefits

  • Comprehensive medical, dental, and vision healthcare benefits for employees and their families.
  • Retirement benefits including 401(k).
  • Paid holidays, vacation, and compassionate and sick days.
  • Opportunities for annual bonuses and long-term incentives.
Full Job Description

Job Description

Job Description:

As Senior Scientist, you will be a critical part of the Analytical Research and Development Microbiology team with responsibilities including supporting the rapidly growing pipeline via collaboration with stakeholders to deliver on critical data in a good manufacturing practices (GMP) microbiology laboratory including finished products testing, utilities, and environmental monitoring. While working within a fast-paced, integrated, multidisciplinary team environment, the candidate is expected to have a strong working knowledge of microbiology laboratory practices and procedures in a GMP environment including microbiology data review and quality procedures. This position is based at the Rahway, New Jersey site.

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, Utilities monitoring and Product Testing into a comprehensive contamination control strategy (CCS). This position is based at the Rahway, NJ site.

Primary Responsibilities:
This role is responsible for building and sustaining a scientifically robust, risk based, and inspection ready EM/Utilities program, integrating Environmental Monitoring and Product Testing into a comprehensive contamination control strategy.

  • Schedule, plan and lead the execution of environmental monitoring (EM), utilities monitoring, and microbiological testing activities in GMP Microbiology laboratory.

  • Provide QC microbiology expertise as a subject matter expert in support of sterile/nonsterile operations within the Micro department including testing in clean room environments, Aseptic process validation, isolator qualifications, biological indicator challenge tests, Bioburden, endotoxin, microbial enumeration, media / reagent growth promotion testing.

  • Manage the environmental monitoring program for the site including risk assessment, sampling locations, frequencies, alert and action limits through to routine viable and non-viable sampling, testing, and EM trend reports.

  • Establishes/oversee environmental monitoring of utilities and compressed gases, including the sampling strategies, equipment, and procedure, and verified performance before routine use.

  • Led EM excursions investigation, deviations, and out-of-trend results. Identify root cause, document findings in the investigation record, drive CAPA and change control to closure.

  • Design and execute special studies in support of aseptic operations and author environmental monitoring and utilities trend reports.

  • Support/Lead aseptic process simulation and aseptic process validation activities including the EM sampling strategy

  • Document the executions, procedure, results, and conclusions of microbiological testing in a detailed and organized manner following ALCOA+ and data integrity principles

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

  • Collaborate with internal stakeholders and partners including Quality, Engineering, validation, automations, and Operations.

  • Perform second scientist review (SSR) and provide training to the staff.

  • Apply lean and six Sigma to laboratory process improvement and site expansion initiatives.

  • Contribute scientific expertise, technical leadership and creativity problem solving to strengthen the collective capability of Microbiology organization.

  • Support internal and external compliance audit activities.

  • Perform additional duties as assigned.

Education Minimum Requirements:

  • Degree in Microbiology or related Biological Sciences, or equivalent with microbiological testing experience.

  • BS Degree with 7+ years of pharmaceutical industry experience OR

  • MS Degree with 4+ years of pharmaceutical industry experience OR

  • Ph.D. Degree with 1+ years of pharmaceutical industry 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, utilities monitoring, microbiological testing and finished product testing in a GMP environment.

  • Oversee EM lifecycle activities, including EMPQ, requalification and periodic review.

  • Knowledge and experience with nonsterile and sterile manufacturing and associated GMP product testing.

  • Experience in leading and supporting quality investigations in the microbiology discipline.

  • Experience with internal / external audit process and authoring responses to observations.

  • Knowledge of current microbiology industry guidelines, regulatory guidances and USP compendia.

  • Experience with MODA, SAP, Veeva is a plus.

#AR&D

Required Skills:

Environmental Monitoring, GMP Compliance, Good Manufacturing Practices (GMP), Interpersonal Relationships, Laboratory Experiments, Microbiology, Problem Solving, Process Ownership

Preferred Skills:

Aseptic Operations, GMP Documentation, Microbiology Laboratory

Current Employees apply HERE

Current Contingent Workers apply HERE

The salary range for this role is

$117,000.00 - $184,200.00

This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. An employee’s position within the salary range will be based on several factors including, but not limited to relevant education, qualifications, certifications, experience, skills, geographic location, government requirements, and business or organizational needs.

The successful candidate will be eligible for annual bonus and long-term incentive, if applicable.

We offer a comprehensive package of benefits.  Available benefits include medical, dental, vision healthcare and other insurance benefits (for employee and family), retirement benefits, including 401(k), paid holidays, vacation, and compassionate and sick days. More information about benefits is available at https://jobs.merck.com/us/en/compensation-and-benefits.

You can apply for this role through https://jobs.merck.com/us/en (or via the Workday Jobs Hub if you are a current employee). The application deadline for this position is stated on this posting.

San Francisco Residents Only: We will consider qualified applicants with arrest and conviction records for employment in compliance with the San Francisco Fair Chance Ordinance

Los Angeles Residents Only: We will consider for employment all qualified applicants, including those with criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance

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:

No relocation

VISA Sponsorship:

No

Travel Requirements:

10%

Flexible Work Arrangements:

Not Applicable

Shift:

Not Indicated

Valid Driving License:

No

Hazardous Material(s):

N/A

Job Posting End Date:

09/21/2026

*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.

About Merck & Co, Inc

Schering-Plough Corporation is a major U.S.-based manufacturer of pharmaceuticals. It operates in three segments: Prescription Pharmaceuticals, Animal Health, and Consumer Health Care. Schering-Plough develops products targeting on allergy, cancer, hepatitis, cardiovascular, central nervous system, respiratory system, and more.  It was founded in 1851 by Ernst Christian Friedrich Schering as Schering AG in Germany. Schering-Plough manufactured several pharmaceutical drugs, the most well-known of which were the allergy drugs Claritin and Clarinex, an anti-cholesterol drug Vytorin, and a brain tumor drug Temodar. It also developed drugs targeting on central nervous system and the respiratory system. Schering Plough also owned and operated the major foot care brand name Dr. Scholl's and the skin care line Coppertone. These also became a part of the new company. Schering-Plough was a full member of the European Federation of Pharmaceutical Industries and Associations (EFPIA), a membership which is also maintained by the new Merck.

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Join the visionary team at Merck & Co, Inc, a global leader in healthcare dedicated to advancing the world of medicine. As part of our professional community, you'll find dynamic job opportunities that foster innovation and leadership across various fields. Merck & Co, Inc is not just a company; it's a place where you can make a difference.

Work You’ll Do

At Merck & Co, Inc, we are committed to improving global health through groundbreaking research and innovative healthcare solutions. Our team is at the forefront of developing new therapies and vaccines that significantly impact public health worldwide. By joining us, you will collaborate with some of the brightest minds in the industry, using your skills to contribute to projects that save and improve lives around the globe.

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Whether you're seeking an internship, a graduate opportunity, or a professional position, Merck & Co, Inc offers a range of career paths in environments that promote rapid professional growth and development. Explore job opportunities in research, digital transformation, manufacturing, and more, all while benefiting from a culture that supports diversity and inclusion.

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Merck & Co, Inc is an ideal environment for those who lead with curiosity and the drive to innovate. Our leadership is committed to fostering a culture where inventive thinking and collaboration are encouraged, making it a perfect place for professionals who seek to make an impact through their work.

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With Merck & Co, Inc, you are not just getting a job; you're gaining access to unparalleled career development opportunities. Enhance your skills through diverse training programs, workshops, and continuous learning courses designed to help you grow at every stage of your career.

Benefits and Culture

We understand that our employees are our greatest asset, which is why we offer competitive benefits designed to support the health and well-being of you and your family. From comprehensive health care coverage and retirement plans to flexible working conditions and wellness programs, our benefits package is designed to meet the diverse needs of our team members.

Join Our Team

Ready to advance your career at Merck & Co, Inc? Search open positions that match your skills and interests. We are continuously hiring and looking for passionate, creative, and solution-driven team players. Prepare your resume, sharpen your interview skills, and become part of a company that's dedicated to making a difference.

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Learn more about Merck & Co, Inc
Size
68,000 employees
Market Cap
$282.6 billion
Industry
Net Income
$7 billion
Founded
1668
5 Year Trend
+4.1%
Revenue
$47.9 billion
NASDAQ

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