Sr Research Associate
Job in
San Rafael, Marin County, California, 94901, USA
Listed on 2026-07-22
Listing for:
System One Holdings, LLC
Full Time
position Listed on 2026-07-22
Job specializations:
-
Research/Development
Biotech Research, Research Scientist, Pharmaceutical Science/ Research
Job Description & How to Apply Below
Sr Research Associate I
Leading biotechnology company looking for an experienced Sr. Research Associate I. Ideal candidates should have a Bachelor's degree in Biochemistry, Biology, Chemical Engineering, or a related scientific discipline with 4–6 years of relevant industry experience OR a Master's degree with 2–4 years of relevant industry experience.
Responsibilities- Independently perform purification of recombinant enzymes and other therapeutic biologics, including proteins, antibodies, and peptides, using ÄKTA Pure and ÄKTA Avant chromatography systems.
- Execute and optimize purification workflows including 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, and additional protein and peptide analytical methods.
- Interpret analytical data to support purification process optimization and project decision-making.
- Analyze experimental results using Graph Pad Prism, JMP, Microsoft Excel, or similar software.
- Communicate experimental findings through technical summaries, presentations, and discussions with cross-functional project teams.
- Support analytical method development, qualification, or technology transfer activities as needed.
- Maintain accurate and complete electronic and/or paper laboratory notebooks.
- Follow established SOPs and document deviations with guidance.
- Communicate results, observations, and progress updates clearly within the team.
- Contribute to a safe, clean, and well-organized laboratory environment in compliance with COMPANY safety standards.
- Bachelor's degree in Biochemistry, Biology, Chemical Engineering, or a related scientific discipline with 4–6 years of relevant industry experience, or Master's degree with 2–4 years of relevant industry experience.
- Demonstrated experience purifying recombinant enzymes, proteins, antibodies, or peptide therapeutics.
- Hands-on experience operating ÄKTA Pure, ÄKTA Avant, or equivalent FPLC chromatography systems.
- Experience with protein analytical techniques including SEC-HPLC, RP-HPLC, CE-SDS, SDS-PAGE, and UV/Vis spectroscopy.
- Experience with tangential-flow filtration (TFF) and ultrafiltration/diafiltration (UF/DF) is preferred.
- Strong analytical and problem-solving skills with excellent attention to detail.
- Experience with electronic laboratory notebooks (Benchling or similar) and data analysis software such as Graph Pad Prism or JMP.
- Excellent written and verbal communication skills with the ability to present technical data effectively.
- Ability to manage multiple priorities while maintaining high-quality scientific documentation.
- Strong collaboration skills and the ability to work effectively within multidisciplinary research teams.
Position Requirements
10+ Years
work experience
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