Our client is seeking a dedicated Senior Research Associate I - Biologics Purification & Characterization to join a top-tier global biotechnology leader. Located onsite 5 days per week in beautiful San Rafael, CA, this laboratory-based role focuses on hands-on purification and analytical characterization of recombinant enzymes and therapeutic proteins to support cutting-edge early-stage research programs.
location: San Rafael, California
job type: Contract
salary: $38.00 - 42.93 per hour
work hours: 9 to 5
education: Bachelors
responsibilities:
- Independently perform purification of recombinant enzymes, proteins, and antibodies using ÄKTA Pure and ÄKTA Avant FPLC systems.
- Execute and optimize purification workflows including affinity, ion exchange (AEX/CEX), size-exclusion (SEC), and hydrophobic interaction (HIC) chromatography.
- Perform concentration and buffer exchange using tangential-flow filtration (TFF) and ultrafiltration/diafiltration (UF/DF).
- Conduct analytical assays (SDS-PAGE, CE-SDS, SEC-HPLC, RP-HPLC) to assess purity, identity, concentration, and quality.
- Maintain accurate electronic laboratory notebooks and perform routine instrument maintenance and troubleshooting.
qualifications:
Required:
- Bachelor's degree in Biochemistry, Biology, or Chemical Engineering with 4-6 years of biotech industry experience (or Master's degree with 2-4 years).
- Demonstrated biotech experience purifying recombinant enzymes, proteins, antibodies, or peptide therapeutics.
- Hands-on experience operating ÄKTA Pure, ÄKTA Avant, or equivalent chromatography systems.
- Experience with protein analytical techniques including SEC-HPLC, RP-HPLC, CE-SDS, SDS-PAGE, and UV/Vis spectroscopy.
- Hands-on experience with tangential-flow filtration (TFF) and ultrafiltration/diafiltration (UF/DF).
- Experience with electronic laboratory notebooks (Benchling) and data analysis software (GraphPad Prism or JMP).
skills: Biology, Chromatography, High Pressure Liquid Chromatography (HPLC), UV-Vis Spectroscopy, Good Laboratory Practices (GLP), Gel Electrophoresis (SDS-PAGE)
Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.
At Randstad, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact HRsupport@randstadusa.com.
Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility).
This posting is open for thirty (30) days.
Qualified applicants in San Francisco with criminal histories will be considered for employment in accordance with the San Francisco Fair Chance Ordinance.
Qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.
We will consider for employment all qualified Applicants, including those with criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance.
