Senior Biologics Downstream Process Scientist

Merck; Rahway (NJ); On-site; USD 142,000 - 224,000; Full time

Job summary

Merck & Co. in Rahway, NJ is seeking an Associate Principal Scientist to lead downstream Biologics process development for early and commercial programs. You will design, optimize, and transfer purification steps, working with a collaborative team across discovery, development, and manufacturing.

The role emphasizes mentoring junior scientists, cross-functional teamwork, and leveraging data science to drive process improvements in a fast-paced biotherapeutics environment.

Qualifications

• Ph.D. with 3+ years of industry experience in chemical/biochemical engineering or a related field.
• Master’s with 6+ years or BS with 8+ years in industry experience in a related field.
• Proven record of downstream process development and purification unit operations.

Responsibilities

• Lead biologic downstream process development for first-in-human and commercial processes.
• Provide technical supervision for process development and characterization.
• Collaborate with upstream process development, Biologics Analytical R&D, and other cross-functional teams.
• Advance downstream platform process technical strategy and champion process improvements.
• Mentor junior scientists.

Skills

Biologics downstream process

Cross-functional collaboration

Mentoring junior scientists

Data science & predictive modeling

Project leadership

Education

Ph.D. with 3+ years industry experience

Master with 6+ years industry experience

BS with 8+ years industry experience

Tools

DeltaV

PCS 7

BioSMB/PCC

Job description

Merck & Co. in Rahway, NJ is seeking an Associate Principal Scientist to lead downstream Biologics process development for early and commercial programs. You will design, optimize, and transfer purification steps, working with a collaborative team across discovery, development, and manufacturing.

The role emphasizes mentoring junior scientists, cross-functional teamwork, and leveraging data science to drive process improvements in a fast-paced biotherapeutics environment.