Principal Scientist I: Process Chemistry & Scale-Up

Parexel; Helena (MT); On-site; USD 120,000 - 190,000; Full time

Benefits offered by this job

Full benefits

Sick time

401K

Paid holidays

Paid time off

Job summary

Parexel is seeking a Principal Scientist I for a full-time, onsite assignment at a client site in Rahway, NJ. The role focuses on chemical process development from grams to multi-kg scales, delivering APIs through the R&D pipeline with GLP-compliant documentation.

You will lead lab-based experiments, optimize unit operations, manage data analysis, and collaborate with cross-functional teams. A PhD in Chemistry or related field is preferred, with MS plus pharma experience acceptable.

Qualifications

• PhD in Chemistry or related field or MS with 3+ years pharma/biopharma experience.
• Proven experience with chemical process development and scale-up.
• Knowledge of GLP/GMP expectations and safety compliance.

Responsibilities

• Develop and optimize chemical processes from grams to multi-kg scales.
• Plan, analyze, and document laboratory experiments and reports.
• Work with lab equipment and process/analytical instruments in a fast-paced setting.
• Collaborate with cross-functional project teams to deliver APIs.
• Improve process robustness, yield, quality, and environmental footprint.

Skills

Process development

Scale-up

Laboratory safety

Data analysis

Cross-functional collaboration

MS Office

Education

PhD in Chemistry or closely related field

MS in Chemistry or closely related field with 3+ years pharma experience

Tools

Mettler Toledo EasyMax/Optimax

Data analysis tools

Job description

Parexel is seeking a Principal Scientist I for a full-time, onsite assignment at a client site in Rahway, NJ. The role focuses on chemical process development from grams to multi-kg scales, delivering APIs through the R&D pipeline with GLP-compliant documentation.

You will lead lab-based experiments, optimize unit operations, manage data analysis, and collaborate with cross-functional teams. A PhD in Chemistry or related field is preferred, with MS plus pharma experience acceptable.