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Merck in Rahway, NJ is seeking a Principal Scientist for Upstream Development to shape next-generation cell culture processes for early- and late-stage programs. The role demands leadership, data-driven strategy, and strong cross-functional collaboration to deliver robust, scalable solutions.
Responsibilities include directing process development for FIH and commercial scales, mentoring junior scientists, and driving innovations with external partners. A Ph.D.
USA - New Jersey - Rahway
The Biologics Process Research & Development organization within our Company Research Labs is responsible for developing the drug substance manufacturing processes for our Company's biologics pipeline. We work closely with colleagues in Discovery, Pre-clinical and Early Development to rapidly develop manufacturing processes for biotherapeutics and efficiently manufacture material to supply clinical trials. We are also responsible for commercial process development and development and implementation of new manufacturing technologies. We work with our partners in our Company Manufacturing Division to commercialize and launch new products.
We are seeking a highly motivated and experienced individual to join our Upstream Development Department as a Principal Scientist. In this role, the successful candidate will work closely with scientists in the Upstream Development Department to develop and refine technical strategy related to next generation processing for assets in early- and late-stage clinical development. Applicants must have effective organizational and multi-tasking skills, demonstrated excellent scientific leadership, and superior written and oral communications abilities. A track record of leveraging data science and digital tools for delivering impactful solutions to complex problems are distinguishing. Evidence of strong cross-functional collaboration, experience successfully mentoring junior scientist, leading projects, and strong external presence through scientific excellence are expected.
The successful candidate will contribute to CMC development of our Company's pipeline, playing an active role in development of cell culture processes and transfer to clinical and commercial manufacturing sites. She/He will also develop strategies for process and pipeline-facing innovation.
Ph.D. with 8+ years of industry experience, Master with 10+ years industry experience, bachelor's with 14+ years industry in Chemical Engineering, Bioengineering, Biochemistry or a related field
Adaptability, Adaptability, Biodesign, Cell Culture Process Development, Cell Cultures, Cell Line Development, Chemical Engineering, Clinical Supplies Management, Clinical Trials, Combination Products, Computational Fluid Dynamics (CFD), Data Analysis, Finite Element Analysis (FEA), Flux Analysis, Immunochemistry, Innovative Thinking, Leadership Mentoring, Mammalian Cell Culture, Manufacturing Processes, Media Development, Pharmaceutical Process Development, Professional Collaboration, Professional Networking, Quality by Design, Regulatory Filings {+ 1 more}
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.
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 another’s thinking and approach problems collectively.
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$173,200.00 - $272,600.00
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.
We will consider qualified applicants with arrest and conviction records for employment in compliance with the San Francisco Fair Chance Ordinance
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
Regular
Domestic
Yes
10%
Not Applicable
Not Indicated
No
n/a
10/1/2026
Requisition ID: R399009