Senior Process Chemist — Multi-Modality Drug Substances

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

Benefits offered by this job

Medical, dental, vision insurance

401(k) retirement benefits

Paid holidays and vacation

Sick days and compassionate leave

Job summary

Merck & Co., Inc. in Rahway, NJ, is seeking highly motivated chemists to join a fast-paced Process Chemistry group.

You will design and develop scalable manufacturing routes for small molecules, macrocyclic peptides, and bioconjugates, supporting preclinical through clinical deliveries and tech transfer. The role emphasizes innovative problem-solving, collaboration across disciplines, and staying current with modern synthetic methodologies, with opportunities for publications and presentations.

Qualifications

• PhD in Organic Chemistry by June 2027; experience in methodology/catalysis.
• Ability to work with cross-disciplinary teams of scientists and engineers.
• Strong problem-solving, leadership, and communication skills.

Responsibilities

• Act as an expert in the laboratory, executing program and chemistry strategy.
• Develop innovative solutions across projects and modalities.
• Design and develop efficient processes for clinical campaigns with scalability and reproducibility.

Skills

Organic Chemistry

Process Chemistry

Reaction Mechanisms

Synthetic Chemistry

Data Analysis

Laboratory Techniques

Scientific Writing

Scientific Presentations

Technical Writing

Interdisciplinary Collaboration

Chemistry

Chemical Reactions

Education

PhD in Organic Chemistry

PhD in Chemistry with method/catalysis/flow experience

Job description

Merck & Co., Inc. in Rahway, NJ, is seeking highly motivated chemists to join a fast-paced Process Chemistry group.

You will design and develop scalable manufacturing routes for small molecules, macrocyclic peptides, and bioconjugates, supporting preclinical through clinical deliveries and tech transfer. The role emphasizes innovative problem-solving, collaboration across disciplines, and staying current with modern synthetic methodologies, with opportunities for publications and presentations.