JOBSEARCHER

RCI-GILD-17088 Associate Scientist - Protein Sciences - Foster City, CA

RangamSan Mateo, CAMay 29th, 2026
Description:Onsite Position - Foster City - M-FAssociate Scientist (Contract) – Protein SciencesPosition SummaryWe 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 and experimental 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 workflowsAnalytical Characterization· Perform biochemical and biophysical characterization of proteins and antibodies, including:o SDS-PAGE and Western bloto UPLC/HPLC-based purity assessmento Binding assays (e.g., Octet/BLI)· Document and summarize experimental data clearly to support team decision-makingProtein 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 standardsCollaboration· 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 settingsPreferred 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 environmentKey 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