Senior Process Engineer, API Development & Scale-Up

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

Job summary

Merck & Co. in Rahway, NJ, seeks a Chemical Engineer to drive process development and scale-up work from laboratory to manufacturing scale for active pharmaceutical ingredients (APIs).

The role emphasizes cGMP adherence, risk assessments, and strong collaboration across cross-functional teams. The candidate will contribute to innovative technology development under scientific and administrative direction, while managing or coordinating activities at external suppliers as needed.

Qualifications

• Requires BS/MS in Chemical/Biochemical Engineering with at least 5 years of relevant work experience in process development.
• PhD in Chemical/Biochemical Engineering (or comparable) is also acceptable.
• Experience performing lab-based research/process development and process scale-up/technology transfer.

Responsibilities

• Conceive, design, plan, and implement advanced experiments for process development and production of APIs.
• Perform hands-on process development/scale-up from lab to pilot plant or production scale.
• Communicate technical problems clearly and regularly with cross-functional teams; support pilot plant operations.
• Travel approximately 10–15% as needed.

Skills

Lab-based research

Process scale-up

Communication

Organization

Interpersonal skills

Time management

Education

BS/MS in Chemical/Biochemical Engineering

PhD in Chemical/Biochemical Engineering

Job description

Merck & Co. in Rahway, NJ, seeks a Chemical Engineer to drive process development and scale-up work from laboratory to manufacturing scale for active pharmaceutical ingredients (APIs).

The role emphasizes cGMP adherence, risk assessments, and strong collaboration across cross-functional teams. The candidate will contribute to innovative technology development under scientific and administrative direction, while managing or coordinating activities at external suppliers as needed.