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Associate Scientist - Biology II

Leadstack Inc

Foster City, CA

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JOB DETAILS
SALARY
$40–$44 Per Hour
SKILLS
Affinity Chromatography, Analysis Skills, Antibodies, Assays, Biochemistry, Biology, Cell Biology, Cell Cultures, Chromatographic Systems, Cross-Functional, Data Quality, Detail Oriented, Documentation, Fortune 500 Customers, High Performance Liquid Chromatography (HPLC), Identify Issues, Laboratory, Laboratory Information Management System (LIMS), Laboratory Notebook, Laboratory Operations, Laboratory Techniques, Molecular Biology, Organizational Skills, Protein Purification, Quality Metrics, Scientific Research, Securities and Exchange Commission (SEC), Standard Operating Procedures (SOP), Team Player, Workflow Analysis
LOCATION
Foster City, CA
POSTED
20 days ago
LeadStack Inc. is an award-winning, one of the nation's fastest-growing, certified minority-owned (MBE) staffing services provider of contingent workforce. As a recognized industry leader in contingent workforce solutions and Certified as a Great Place to Work, we're proud to partner with some of the most admired Fortune 500 brands in the world.

Job Title: Associate Scientist – Protein Sciences
Location: Foster City, CA 94404
Duration:  18 Months
PR: $35/hr - $44/hr on W2
 
Job Summary:
  • We are seeking a highly motivated Associate Scientist (Contract) to support our Protein Sciences team.
  • This individual will contribute as a hands-on laboratory scientist, executing protein production, purification, and analytical workflows that support multiple CAR-T and cell therapy programs.
  • This is a 100% bench-focused, individual contributor role.
  • The successful candidate will work closely with scientists across Protein Science and Research to generate high-quality data and reagents, while contributing to efficient laboratory operations execution.
 
Key Responsibilities
Protein Production & Purification
· Execute recombinant protein expression and purification workflows across multiple expression systems (e.g., mammalian cell culture, transient transfections)
· Perform protein purification using AKTA chromatography systems (affinity, SEC, ion exchange)
· Maintain cell cultures and support transfection workflows
 
Analytical Characterization
· Perform biochemical and biophysical characterization of proteins and antibodies, including:
o SDS-PAGE and Western blot
o UPLC/HPLC-based purity assessment
o Binding assays (e.g., Octet/BLI)
· Document and summarize experimental data clearly to support team decision-making
 
Protein Modification & Assay Support
· Perform antibody and protein conjugation workflows with appropriate analytical follow-up
· Prepare reagents and materials to support downstream functional assays (e.g., flow cytometry or cell-based assays in collaboration with Cell Biology partners)
 
Lab Operations & Execution
· Maintain organized lab practices, including reagents, consumables, and shared equipment
· Ensure accurate experimental documentation in electronic lab notebooks and LIMS
· Follow established SOPs and contribute to maintaining reproducibility and data quality standards
 
Collaboration
· Work closely with cross-functional partners to execute experiments aligned with defined protocols and timelines
· Communicate experimental progress and results effectively to project teams
 
Basic Qualifications
· Bachelor's or Master's degree in Biochemistry, Molecular Biology, Protein Science, or related field
· 2–4+ years of relevant hands-on laboratory experience in academic or industry settings
 
Preferred Qualifications
  • Experience with recombinant protein expression and purification workflows
  • Hands-on experience with AKTA systems and chromatography methods
  • Familiarity with protein characterization techniques (SDS-PAGE, HPLC, BLI/Octet, etc.)
  • Experience with mammalian cell culture and transfections
  • Strong attention to detail and commitment to high-quality data generation and documentation
  • Ability to follow protocols, troubleshoot at the experiment level, and work effectively in a fast-paced lab environment
 
Key Characteristics for Success in This Role
  • Strong hands-on bench execution skills
  • High level of organization and reproducibility
  • Ability to independently execute experiments with appropriate controls
  • Collaborative mindset and willingness to support team priorities
 
If you have any questions, feel free to call me on (415) 322-5419or send an email on

akarsh.yathiraj@leadstackinc.com


 
Thanks and Regards
Akarsh Yathiraj
Senior Recruiter
 
C.(415) 322-5419
D.(415) 322-5419
A.611 Gateway Blvd, Ste 120
South San Francisco, CA 94080
W.www.leadstackinc.com

About the Company

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Leadstack Inc