Principal Scientist, Upstream Process Development Group Lead
Merck
- Location
- Rahway, New Jersey, United States of America
- Employment
- Full Time
- Work model
- On-Site
- Level
- Principal
- Salary
- $173.2k – $272.6k/yr
- Posted
- Sep 14, 2026
Skills
About this role
Job Description
Job Description: Our Scientists are our Inventors. Through innovative thinking, state-of-the-art facilities, cutting-edge science, and technology, we collaborate to deliver the next medical breakthroughs. We are looking for a collaborative, self-motivated scientific leader with expertise in downstream bioprocessing to join Biologics Process Research & Development (BPR&D) as a Senior Principal Scientist. As a Senior Principal Scientist/Principal Scientist, you will drive various strategic initiatives and translate strategies into implementation for our Company biologics platform. You will collaborate with an immensely creative and collaborative team of scientists and engineers to design upstream, cell-culture processes while developing technical strategies related to upstream processing and recombinant expression of drug candidates in early- and late-stage development. Responsibilities include, but are not limited to: Serve as a scientific leader to shape and drive innovation across the Biologics pipeline, strategy, and science. Anticipate and solve scientific and technical challenges across projects and functional teams, in a fast-paced, multidisciplinary environment. Lead the development of robust and scalable upstream processes for biologics in various stages of clinical development, as well as process characterization and regulatory filings for successful commercialization. Improve upstream processes by increasing efficiency and cost-effectiveness through research and innovation, while evaluating technologies and industry best practices. Collaborate with academia, industry, and vendors to facilitate the development and early adoption of novel process technologies. Contribute to strategic initiatives; work with senior leaders to establish overall project strategy and guide teams in its execution. Conceptualize, plan, and execute projects using effective organizational, prioritization, and problem-solving skills. Stay updated on the scientific and regulatory landscape; contribute scientifically and build your reputation through conference participation. Represent BPR&D as a upstream bioprocess expert/co-leader in internal and cross-functional project teams. Direct supervision of 3-5 scientists, accountable for development and growth of a cohesive group and direct reports Mentor and actively share expertise across teams; guide career development within and outside the group; build strong, collaborative connections in matrix teams Minimum Education Requirements: Ph.D. with 10+ years, MS with 12+ years, or BS with 14+ and Ph.D. with 6+ years, MS with 8+ years, or BS with 10+years of industry experience in Chemical/Biochemical Engineering or a related field for Senior Principal Scientist position and Principal Scientist position, respectively. Required Experience, Skills, and Competencies: Strong fundamental knowledge and subject matter expertise in cell-culture process development for biologics, fed-batch cell culture, bioreactor scale-up and scale-down, as well as recent advances, and challenges in the field Expertise in independently conducting and directing the design, execution, analysis, and documentation of all stages of cell-culture process development Track record of accomplishments in upstream bioprocessing with a history of peer-reviewed publications and presentations. Strong understanding of cell metabolism and biochemical pathways relevant to bioprocessing. Knowledge of biologics CMC development. Ability to adapt to and prioritize complex objectives under tight timelines in a rapidly changing environment. Experience leading internal and external cross-functional, matrixed teams. Demonstrated scientific leadership with significant, measurable project impacts across a set of programs. Action-oriented mindset with a capacity for creativity; ability to take initiative, innovate, iterate, and solve problems. Supervise, coach and mentor scientists to maximize talent development and utilization. Excellent