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Principal Scientist, Upstream Process Development

Job in Rahway, Union County, New Jersey, 07065, USA
Listing for: Merck
Full Time position
Listed on 2026-06-12
Job specializations:
  • Engineering
    Research Scientist, Process Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below

The Biologics Process Research & Development organization within our Research & Development Division 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 diverse biotherapeutics, and efficiently manufacture material to supply clinical trials. We are also responsible for late-stage process development and process characterization to prepare for commercial manufacturing.

We work with our partners in our Company Manufacturing Division to commercialize and launch new products.

Job Responsibilities
  • 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.
  • Develop strategies for process and pipeline-facing innovation.
  • Leading biologic upstream process development for first-in-human and commercial processes by efficiently developing high yield, robust and scalable cell culture processes.
  • Provide technical direction for process development, characterization, commercialization, and regulatory filing activities to ensure a smooth and clear path to successful PPQs and BLAs for our company pipeline.
  • Advance upstream platform process technical strategy and champion creative process improvement initiatives.
  • Initiate new collaborations to assess new technologies and industry strategies with relevance to our Company.
  • Collaborate with academia, industry partners, and vendors to drive development, innovation and adoption of new process technologies with broad impact to projects or platform.
  • Keep current with the external patent and literature environment; actively present and publish externally and pursue patenting strategies.
  • Mentor and educate junior scientists.
Minimum Education Required

Ph.D. with 6+ years of industry experience or Master with 8+ years industry experience in Chemical Engineering, Bioengineering, Biochemistry or a related field.

Required Experience And Skills
  • Proven record of accomplishments in upstream process and technology development with a strong scientific publication and presentation track record.
  • Experience in CHO fed-batch cell culture and a working understanding of downstream & analytics.
  • Understanding and hands-on experience on cell culture bioreactors including microbioreactors, bench-scale and pilot-scale bioreactors, and scale-up/tech transfer activities.
  • Working knowledge of cell culture media, CHO cell biology and metabolism, DOE statistics and computational fluid dynamics.
  • Ability to direct the planning, execution, analysis, and documentation of all stages of cell culture process development.
  • Ability to work in a matrixed team environment and collaborate with both internal and external partners including vendors.
  • Knowledge of biologics CMC development cycle.
  • Experience with late-stage commercial process development, technology transfer, scale-down model qualification and process characterization.
  • Demonstrated ability for taking initiative, creativity, and innovation in problem solving.
  • Demonstrated ability to develop staff to maximize utilization of talent and actively guides career development; builds strong and collaborative teams.
Preferred Experience And Skills
  • Experience with state-of-the-art cell culture processes including intensified inoculum and perfusion process development.
  • Experience with high throughput microbioreactor systems, and advanced in situ analytics for process monitoring and control.
  • Expertise in media development, media/solution chemistry.
  • Background in data science approaches related to cell culture and predictive modeling e.g., metabolic flux analysis (MFA), omics, machine learning; experience integrating PAT efforts and computational fluid dynamics (CFD).
  • Experience leading cross functional, program development teams.
Required Skills

Adaptability, Cell Culture Process Development, Cell Line Development, Combination Products, Data Analysis, Finite Element Analysis (FEA), Innovative Thinking, Leadership Mentoring, Pharmaceutical Process Development, Professional Collaboration, Professional Networking, Quality by Design, Regulatory Filings, Strategic Thinking, Technology Transfer

Preferred Skills

Current Employees apply HERE;
Current Contingent Workers apply HERE

Geographic and Compliance

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  if you need an accommodation during the application or hiring process.

Equal Employment Opportunity

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…

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