CW Research Associate​/Temporary

Who We Are

Bio Marin is a leading rare disease biotechnology company focused on genetically defined conditions. Guided by our purpose to develop medicines that make a profound impact on people’s lives, our global teams have delivered a portfolio of therapies since our founding in 1997. Our revolutionary treatments for conditions like achondroplasia (the most common form of dwarfism), PKU (phenylketonuria), CLN2, a form of Batten disease, and a number of forms of MPS (mucopolysaccharidosis) offer new possibilities for patients and families who previously had few, if any, available options.

More recently, with the close of the Amicus acquisition, our portfolio has expanded to include therapies for Fabry disease and Pompe disease, expanding our ability to reach more people living with rare genetic conditions. Our success comes from our unwavering commitment to excellence, our deep understanding of patient needs, our scientific expertise, and our world‑class manufacturing capabilities. At the heart of Bio Marin is a dedicated team of the brightest minds in the industry working together to deliver innovative therapies to patients and families around the world.

From research and discovery to post‑market clinical development, our R&D engine involves all bench and clinical research and the associated groups that support those endeavors. Our teams work on developing first‑in‑class and best‑in‑class therapeutics that provide meaningful advances to patients who live with rare diseases.

Temporary, Full‑Time ONSITE

The Therapeutics Process Development & Characterization (TPDC) group is seeking a highly motivated Temporary Senior Research Associate I to support biologics purification and analytical characterization, with a primary focus on recombinant enzymes and additional exposure to therapeutic proteins, antibodies, and peptide‑based modalities.

This is a primarily laboratory‑based role involving hands‑on purification and characterization of biologics using established chromatography and filtration workflows. The successful candidate will independently execute purification experiments, troubleshoot technical challenges, analyze experimental data, and contribute to activities supporting multiple early‑stage and exploratory research programs across Bio Marin. The position also supports laboratory operations through routine instrument maintenance.

The ideal candidate is detail‑oriented, scientifically curious, highly organized, and capable of working independently while collaborating effectively within multidisciplinary project teams.

Independently perform purification of recombinant enzymes and other therapeutic biologics, including proteins, antibodies, and peptides, using ÄKTA Pure and ÄKTA Avant chromatography systems.

• Affinity chromatography
• Ion exchange chromatography (AEX/CEX)
• Size‑exclusion chromatography (SEC)
• Hydrophobic interaction chromatography (HIC)
• Desalting and buffer exchange

Perform concentration and buffer exchange using tangential‑flow filtration (TFF), ultrafiltration/diafiltration (UF/DF), or centrifugal filtration.

Evaluate purification performance and recommend process improvements to enhance yield, purity, and recovery.

Troubleshoot chromatography, filtration, and purification processes with minimal supervision.

Prepare buffers, reagents, and chromatography columns according to established procedures.

Perform routine instrument checks, preventative maintenance, and basic troubleshooting of purification equipment.

Perform analytical assays to assess purity, identity, concentration, and quality of biologics, including:

• SDS‑PAGE
• CE‑SDS
• SEC‑HPLC
• RP‑HPLC
• UV/Vis spectrophotometry

Interpret analytical data to support purification process optimization and project decision‑making.

Analyze experimental results using Graph Pad Prism, JMP, Microsoft Excel, or similar…