Sr. Scientist, Pharmaceutical Analytical Sciences

GMP Senior Scientist, Pharmaceutical Analytical Sciences

Pursuing an opportunity to work in a GMP analytical team focused on small molecule, peptide, and oligonucleotide drug development? Our Pharmaceutical Analytical Sciences group in Rahway, NJ seeks a dedicated Scientist to engage in laboratory-based analytical characterization and statistical data analysis across cross‑functional scientific teams.

• Support execution of Good Manufacturing Practices activities such as release and stability testing for active pharmaceutical ingredients (APIs), formulations, and manufacturing processes using traditional and advanced analytical tools.
• Document procedures, results, and conclusions of experiments in a detailed, organized manner following SOPs and ALCOA principles.
• Troubleshoot and investigate GMP testing challenges collaboratively with cross‑functional project teams and Quality stakeholders.
• Validate and implement analytical methods for release and stability testing of clinical materials.
• Perform data entry, review, and author analytical reports or data summaries.
• Contribute to experimental design, execution, and data interpretation for GMP project support.
• Lead laboratory investigations and deviations, including root cause analysis and identification of corrective and preventative actions.
• Collaborate with Pharmaceutical Analytical Sciences colleagues and partners such as Global Development Quality, Process Chemistry, and Pharmaceutical Operations.
• Assist with compliance audit and inspection activities.

• Bachelor of Science with at least 3 years of relevant industry experience; or
• Master of Science with at least 1 year of relevant industry experience.
• Degree in Chemistry, Pharmaceutical Sciences, or related Life Sciences.

• Experience in a fast‑paced analytical laboratory employing chromatography instrumentation.
• Excellent written and oral communication skills.
• Interpersonal skills necessary for team collaboration.
• Ability to work in a cross‑functional team environment.

• Hands‑on GMP environment experience.
• Advanced chromatographic separation science, spectroscopy, dissolution testing, and other analytical techniques.
• Experience with Empower, electronic notebooks, and leading laboratory investigations.

• Adaptability
• Analytical Development
• GMP Compliance
• Good Manufacturing Practices (GMP)
• Laboratory Information Management System (LIMS)
• Pharmaceutical Sciences
• Strategic Thinking
• Troubleshooting

Merck & Co., Inc. is committed to inclusive hiring. Please let us know if you need an accommodation during the application or hiring process.

As an Equal Employment Opportunity Employer, we provide equal opportunities to all employees and applicants for employment and prohibit discrimination on the basis of race, color, age, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability status, or other legally protected characteristics.

Salary range: $ – $ (annual). The successful candidate will be eligible for annual bonus and long‑term incentive, if applicable.

We offer a comprehensive package of benefits including medical, dental, vision, and other insurance; retirement benefits (401(k)); paid holidays, vacation, and compassionate and sick days.

Additional benefits details are available at