Sr. Research Associate II, Protein Purification and QC

Gilead Sciences is continuing to hire for all open roles. Our interview process may be conducted virtually and some roles will be asked to temporarily work from home. Over the coming weeks and months, we will be implementing a phased approach to bringing employees back to site to ensure the health and safety of our teams. For Current Gilead Employees and Contractors: Please log onto your Internal Career Site to apply for this job. Job Description Gilead Sciences currently has an excellent opportunity for a highly motivated scientist to join our protein production, automation, and logistics group in Protein Therapeutics Department. The successful candidate is expected to work independently and display professional judgment in all aspects of daily research and presentations. This person will work in collaboration with research project teams to generate and validate potential therapeutic proteins and critical reagents. The candidate should be team-oriented, hard-working, friendly and interested in learning new skills. Responsibilities: Performs protein purification, QC, and sample bank registration to support the preclinical development of biopharmaceutical programs across multiple therapeutic areas Prepares technical reports, quantitative analyses and summaries for entry into Excel, PPT, and ELN formats Uses good verbal communication skills and interpersonal skills to provide insight into the processes used to achieve results of assigned tasks Participates in group meetings. Presents results of work, interprets data, and draws conclusions regarding presented material and nature of work. Acts as a resource for other employees within the department Maintain awareness of cutting-edge technical developments and scientific knowledge and apply these where possible to improve performance Required skills: Detailed knowledge in the fields of protein biochemistry and protein engineering Several years of experience in purifying and characterizing a variety of recombinant proteins, monoclonal antibodies, and next generation biologics (e.g., bispecific antibodies, immunocytokines) Hands-on experience in the purification techniques including affinity (Ni-NTA, Prot-A/G/L, anti-flag, etc), ion exchange, size exclusion, hydrophobic interaction chromatography using Akta Avant/Pure or BioRad NGC Proficiency with various analytical protein characterization techniques such as SEC-HPLC or UHPLC, SDS-PAGE, Endosafe Ability to perform method development, write protocols, maintain detailed records and inventory Nice to have skills: Experience with other protein characterization technologies (DLS, SEC-MALS, LC/MS, HIC-HPLC, CE-SDS, Western Blot, ELISA, etc) would be a strong plus Knowledge and experience on protein formulation, automated liquid handling systems (Hamilton, Bravo) would be highly valued Aseptic technique and experience with mammalian cell culture Ability to multi-task and work in a fast-paced team environment Education and Experience: B.S in Biochemistry, Chemistry or related discipline with 4+ years, or M.S. with 2+ years in areas related to protein sciences are required. Job title will be commensurate with experience. Technology Akta, BioRad NGC, Agilent, Vanquish, Ni-NTA, Protein-A, IEX, SEC, HIC, Protein-G, Protein-L, SDS-PAGE, Mass Spectroscopy, LC/MS-TOF, Malvern, Wyatt, MALLS, DLS For jobs in the United States: As an equal opportunity employer, Gilead Sciences Inc. is committed to a diverse workforce. Employment decisions regarding recruitment and selection will be made without discrimination based on race, color, religion, national origin, gender, age, sexual orientation, physical or mental disability, genetic information or characteristic, gender identity and expression, veteran status, or other non-job related characteristics or other prohibited grounds specified in applicable federal, state and local laws. In order to ensure reasonable accommodation for individuals protected by Section 503 of the Rehabilitation Act of 1973, the Vietnam Era Veterans'' Readjustment Act of 1974, and Title I of the Americans with Disabilities Act of 1990, applicants who require accommodation in the job application process may contact [Click Here to Email Your Resumé] for assistance. Following extensive monitoring, research, consideration of business implications and advice from internal and external experts, Gilead has made the decision to require all U.S., Canada, Australia, and Singapore employees and contractors to receive the COVID-19 vaccines as a condition of employment. "Full vaccination" is defined as two weeks after both doses of a two-dose vaccine or two weeks since a single-dose vaccine has been administered. Anyone unable to be vaccinated, either because of a sincerely held religious belief or a medical condition or disability that prevents them from being vaccinated, can request a reasonable accommodation."‹ For more information about equal employment opportunity protections, please view the ''EEO is the Law'' poster. NOTICE: EMPLOYEE POLYGRAPH PROTECTION ACT YOUR RIGHTS UNDER THE FAMILY AND MEDICAL LEAVE ACT PAY TRANSPARENCY NONDISCRIMINATION PROVISION Our environment respects individual differences and recognizes each employee as an integral member of our company. Our workforce reflects these values and celebrates the individuals who make up our growing team. Gilead provides a work environment free of harassment and prohibited conduct. We promote and support individual differences and diversity of thoughts and opinion. For Current Gilead Employees and Contractors: Please log onto your Internal Career Site to apply for this job. 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Created: 2025-10-04