Senior Scientist, Biophysical Characterization for Biologics

Merck & Co.; Rahway (NJ); On-site; USD 117,000 - 184,000; Full time

Benefits offered by this job

Medical, dental, vision

401(k) retirement plan

Paid holidays

Vacation and sick days

Job summary

Merck & Co., Inc. in Rahway, NJ, seeks a Senior Scientist in Biophysics to advance biotherapeutics characterization and develop analytical tools for CMC development.

You will work with formulation, process, and device groups to ensure robust drug substances and products, across a collaborative, growth‑oriented environment. You will author technical/regulatory documents, present data, and manage projects, with opportunities to publish findings and engage with scientific societies.

Qualifications

• Experience in analysis of biologics, protein/peptide stability, interactions.
• Hands-on biophysical characterization of proteins/peptides.
• Understanding of protein aggregation mechanisms.
• Ability to deliver with tight timelines.
• Strong initiative, creativity and problem solving.
• Excellent written and oral communication; cross-functional work.

Responsibilities

• Develop and implement biophysical/particle characterization tools for biotherapeutics.
• Collaborate with process, formulation and device teams within CMC development.
• Author technical reports and regulatory documents; present data.
• Manage projects and contribute to independent research and publications.

Skills

Biophysics

Biologics analysis

Protein characterization

Oral/written communication

Team collaboration

Independent work

Education

Ph.D. in Biophysics/related

MS in Biophysics/related with 4-8 years

Tools

CD

IR

DSC

AUC

DLS

Job description

Merck & Co., Inc. in Rahway, NJ, seeks a Senior Scientist in Biophysics to advance biotherapeutics characterization and develop analytical tools for CMC development.

You will work with formulation, process, and device groups to ensure robust drug substances and products, across a collaborative, growth‑oriented environment. You will author technical/regulatory documents, present data, and manage projects, with opportunities to publish findings and engage with scientific societies.