Role Overview
Parexel is hiring a Principal Scientist I, II or III - Purification Chemist - FSP. This is a full-time role in Rahway. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
We are looking to fill a Principal Scientist - Purification Chemist position working as a full-time employee of Parexel FSP on long-term assignment onsite at one of our clients located in Rahway, NJ. This position offers full benefits, sick time, 401K, paid holidays, and paid time off.
Description - Purification Scientist within the Analytical Enabling Capability department. Apply knowledge and skillsets in chromatography, organic chemistry, or biochemistry to execute the purification of API, reaction products, process intermediates, byproducts, or impurities in an R&D laboratory.
Qualifications - BS/MS /PhD in Chemistry or Biochemistry and relevant experience in chromatographic purification.
Principal Scientist I - PhD < 1 year experience; MS with 3+ years; BS with 7+ years
- Principal Scientist II - PhD > 1 year experience; MS with 5+ years; BS with 10+ years
- Principal Scientist III - PhD with 3+ years of experience, MS with 7+ years; BS with 12+ years
Required Skills And Experience
- Experience in semi-preparative/preparative chromatographic purification from recent industry experience
- Background in the separation of multicomponent mixtures
- Strong laboratory skills, chromatographic skills, and wet chemistry skills
- Strong technical problem-solving skills
- Excellent verbal and written communication skills
About Parexel
Parexel FSP includes the CMC Operations group. We provide pharmaceutical and biopharmaceutical companies with qualified and talented technical professionals to support the development and delivery of new therapies.
For results-driven and caring individuals who want to make a meaningful difference in the world, Parexel is trusted by life sciences companies to meet their long-term staffing needs for scientists and engineers and related professionals in discovery and development of novel therapies, keeping patients at the center of everything we do, and where an inclusive community helps you be your best, transforming any career into a life-changing achievement.
Come join us!
Frequently Asked Questions
How do I apply for the Principal Scientist I, II or III - Purification Chemist - FSP position at Parexel?
Use the Apply button above to submit your application directly to Parexel. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Principal Scientist I, II or III - Purification Chemist - FSP position at Parexel located?
This position is based in Rahway. Parexel has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Principal Scientist I, II or III - Purification Chemist - FSP at Parexel earn?
Parexel has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Principal Scientist I, II or III - Purification Chemist - FSP role at Parexel posted?
This role was posted on April 27, 2026 (56 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
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