Scientist Senior Associate

Join to apply for the Scientist Senior Associate role at Randstad USA Location: Thousand Oaks, CA Contract Length: Six months, with potential extension Pay: $45.00 – $49.89 per hour Key Skills Mammalian cell culture – adherent and suspension Cell banking, cryopreservation Upstream processing Reagent/media optimization Antibody purification Job Summary Join a mission-driven team at the forefront of critical reagent manufacturing and process reliability at a leading biotech in Thousand Oaks, CA. As a Senior Associate Scientist, you will drive advances in the Global Critical Reagents (GCR) pipeline, balancing advanced laboratory execution with technical leadership of process development, laboratory automation, and digital transformation. You will own medium‑to‑large improvement projects from definition through vendor/technology evaluation, piloting, validation, SOP generation, and handoff into operations, while also supporting daily routine tasks. Responsibilities Create and characterize adherent and suspension assay cell lines and develop high‑quality assay‑ready cell banks for cell‑based potency assay methods in Process Development and Quality Control, focusing primarily on adherent mammalian cell lines. Support end‑to‑end mammalian cell culture work for assay cell bank generation (planning, media preparation, expansion, harvest, cryopreservation, and documentation). Operate and use WAVE 25 Rocker and Corning HYPERStack vessels for scale‑up culture and banking activities, with a focus on closed‑system multi‑layer vessels (HYPERStack) for adherent cell lines. Lead process development and automation projects that increase throughput, reduce variability, and strengthen data integrity for assay cell bank and reagent workflows. Evaluate, pilot and integrate laboratory automation (e.g., liquid handlers, tube handlers); develop vendor assessments and implementation plans. Author, revise and own SOPs and protocols to enable robust processes and successful transfer to operations. Manage and improve digital inventory workflows; integrate process data to support forecasting and replenishment triggers. Perform and support advanced reagent work: antibody/protein purification and conjugation. Translate research and experimental results into concise technical recommendations and present them to cross‑functional teams and senior stakeholders. Mentor and provide technical guidance to staff; act as a subject matter expert for GCR operations. Perform inventory management tasks, global shipping, reagent sub‑aliquoting, and documentation in accordance with applicable SOPs. Operate lab and automation equipment, including centrifuges, HPLC systems, incubators, freezers, LN dewars, vial fillers, labelers, and cappers. Handle daily tasks and team support while managing projects in a fast‑paced setting. Ensure compliance with safety, quality and data integrity expectations. Qualifications Master’s degree in cell biology, molecular biology, biotechnology, biochemistry, or related field and 2 years industry experience in cell culture/process development/reagent generation; OR Bachelor’s degree and 4 years relevant industry experience demonstrating increasing responsibility. Strong hands‑on expertise in mammalian cell culture with a primary focus on adherent cell lines; experience with suspension as needed; creation/characterization of cell banks. Strong aseptic technique and experience working in a sterile environment (BSL‑2 biosafety cabinets), including routine contamination control. Demonstrated experience leading process improvement and laboratory automation projects from pilot through implementation/transfer. Proficiency with digital lab documentation and data tools (ELN, advanced Excel, data visualization tools such as Spotfire, Tableau). Proven ability to communicate technical information clearly to peers and senior stakeholders (SOPs, technical summaries, presentations). Strong mentorship and ability to work effectively in a team and cross‑functional environment. Detail‑oriented self‑starter: independently deliver lab/process‑improvement projects; prioritize effectively, meet deadlines, communicate risks with mitigations, and maintain accurate documentation. Ability to work full‑time onsite at the Company Thousand Oaks campus. Preferred Qualifications Upstream cell culture processing and cell bank manufacturing experience (preferably assay cell banks with a primary focus on adherent mammalian cell lines; suspension as needed). Experience working in a GxP‑regulated environment. Hands‑on experience with reagent development, including antibody/protein purification and conjugation techniques. Practical experience with laboratory automation hardware and software, and knowledge of automation validation/transfer practices. Experience with digital inventory systems and familiarity with SharePoint and Smartsheet. Demonstrated competence with data visualization/analytics tools to analyze and present data (e.g., Spotfire, Tableau, Power BI). Prior experience authoring SOPs and supporting Quality in regulated environments. Experience mentoring staff and leading technical teams or multi‑disciplinary project efforts. Practical use of AI tools, including GenAI. Skills Molecular Biology, Cell Biology, Cell Cultures, High Pressure Liquid Chromatography (HPLC), Electronic Laboratory Notebook (ELN), Good Laboratory Practices (GLP), Good Clinical Practice (GCP), Good Manufacturing Practices (GMP), Good Documentation Practices (GDP) 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. Accommodations 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. Benefits 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, life insurance offerings, short‑term disability, and a 401K plan (all benefits are based on eligibility). Posting Duration This posting is open for thirty (30) days. Fair Chance Hiring 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. #J-18808-Ljbffr