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Scientist, Downstream – Biologics Drug Substance Commercialization

MSD


Job Location:

Rahway, NJ - USA

Yearly Salary: USD 87300 - 137400
Posted: 12 September 2026 (4 days ago)
Application Deadline: 10 December 2026
Vacancies: 1 Vacancy

Job Summary

Job Description

We aspire to be the premier research-intensive biopharmaceutical company. Our manufacturing division is at the forefront of research to deliver innovative health solutions that advance the prevention and treatment of diseases. We are seeking a motivated scientist/engineer to join our Bioprocess Drug Substance Commercialization (BDSC) group. This role offers an exciting opportunity to work on late-stage process development technology transfer and in-line support of biologics.

Responsibilities

  • Lead the execution of hands-on experiments in biologics downstream processing including lab-scale process characterization pilot-scale process development and process scale-up/scale-down model development.

  • Collaborate with commercial manufacturing teams as a process sciences representative to support facility start-up and in-line support activities including on-the-floor support for drug substance manufacturing as needed.

  • Author and/or review technical documents to support Process Performance Qualification (PPQ) and licensure.

Qualifications

Required

  • Bachelors Degree or higher in Chemical Engineering Chemistry Biology or comparable discipline.

  • 2 years of experience with downstream processing of monoclonal antibody (mAb) products or similar products in a laboratory or manufacturing setting including unit operations such as membrane filtration preparative chromatography ultrafiltration or tangential flow filtration and viral clearance.

  • Mechanistic understanding of downstream processing separation sciences.

  • Ability to execute experiments independently in a manner that meets quality and timeline expectations.

  • Well-developed communication organizational and problem-solving skills with an attention to detail.

Preferred

  • Large molecule drug substance technology transfer experience.

  • Collaboration with analytical teams pilot-scale and/or manufacturing environments.

  • Experience authoring technical documentation in support of the following: process description process characterization process performance qualification risk assessment control strategy process comparability reports and/or regulatory submissions.

  • Current Good Manufacturing Practice (cGMP) awareness or experience. #VetJobs #EBRGs

Required Skills:

Preferred Skills:

Current Employees apply HERE

Current Contingent Workers apply HERE

US and Puerto Rico Residents Only:

Our company is committed to inclusion ensuring that candidates can engage in a hiring process that exhibits their true capabilities. Please click here 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 applicable legally protected a federal contractor we comply with all affirmative action requirements for protected veterans and individuals with disabilities. For more information about personal rights under the U.S. Equal Opportunity Employment laws visit:

EEOC Know Your Rights

EEOC GINA Supplement

We are proud to be a company that embraces the value of bringing together talented and committed people with diverse experiences perspectives skills and backgrounds. The fastest way to breakthrough innovation is when people with diverse ideas broad experiences backgrounds and skills come together in an inclusive environment. We encourage our colleagues to respectfully challenge one anothers thinking and approach problems collectively.

Learn more about your rights including under California Colorado and other US State Acts

The salary range for this role is

$87300.00 - $137400.00

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 employees 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 can apply for this role through (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:

Domestic

VISA Sponsorship:

No

Travel Requirements:

10%

Flexible Work Arrangements:

Hybrid

Shift:

1st - Day

Valid Driving License:

No

Hazardous Material(s):

N/A

Job Posting End Date:

09/19/2026

*A job posting is effective until 11:59:59PM on the day BEFOREthe listed job posting end date. Please ensure you apply to a job posting no later than the day BEFORE the job posting end date.


Required Experience:

IC


About Company

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Merck & Co., Inc., Kenilworth, New Jersey, USA is known as “Merck” in the United States, Canada & Puerto Rico. We are known as “MSD” in Europe, Middle East, Africa, Latin America & Asia Pacific. We are a global biopharmaceutical leader with a diverse portfolio of prescription medicine ... View more

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