Senior Process Chemist: API Development & Scale-Up

Parexel; Madison (WI); On-site; USD 110,000 - 150,000; Full time

Job summary

Parexel is seeking a Principal Scientist I for a full-time, onsite role with a client in Rahway, NJ. The position focuses on advancing chemical process development, scale-up, and API delivery within a GLP-compliant lab.

You will collaborate on multi-step synthesis, analytical methods, and process optimization while ensuring safety and regulatory compliance. The ideal candidate holds a PhD in Chemistry (or MS with 3+ years pharma/biopharma), with hands-on experience in unit operations, analytical

Qualifications

• PhD in Chemistry or related field; or MS with 3+ years pharma/biopharma experience.
• Experience in chemical process development, scale-up and unit operations.
• Strong lab skills, data analysis, and GLP compliance.
• Ability to work safely in a fast-paced, regulated lab environment.

Responsibilities

• Develop and optimize chemical processes from lab to kilo-lab scales.
• Plan, conduct, and document lab experiments; analyze data and write reports.
• Ensure safety, environmental, and quality requirements are met.
• Collaborate with cross-functional project teams on API development.

Skills

Chemical process development

Scale-up

GLP

Laboratory safety

Data analysis

MS Office

Education

PhD in Chemistry

MS in Chemistry (with 3+ years pharma/biopharma)

Tools

Mettler Toledo EasyMax/Optimax

HPLC

GC

Job description

Parexel is seeking a Principal Scientist I for a full-time, onsite role with a client in Rahway, NJ. The position focuses on advancing chemical process development, scale-up, and API delivery within a GLP-compliant lab.

You will collaborate on multi-step synthesis, analytical methods, and process optimization while ensuring safety and regulatory compliance. The ideal candidate holds a PhD in Chemistry (or MS with 3+ years pharma/biopharma), with hands-on experience in unit operations, analytical