Senior Scientist

Job Summary Join a premier global life sciences innovator at their cutting-edge R&D facility in vibrant St. Louis, Missouri. As a Senior Scientist in the Analytical R&D Department, you will deliver critical analytical support to drive next-generation therapeutics from early development through manufacturing. location: St. Louis MO job type: Contract salary: $40-$47 an hour work hours: 9:00 AM - 5:00 PM education: Bachelors Degree Responsibilities Lead the design, development, and validation of advanced LC-MS assays for the quantitation of proteins in complex biological mixtures.Perform high-level structural characterization of large biomolecules, including monoclonal antibodies, multispecifics, and antibody-drug conjugates (ADCs).Prepare complex samples using enzymatic and chemical techniques such as digestion, enrichment, depletion, and labeling.Partner cross-functionally with product development, manufacturing teams, and multidisciplinary project leaders to advance pipeline programs.Maintain, calibrate, and troubleshoot high-resolution and triple quadrupole LC-MS instrumentation. Qualifications Bachelor of Science in Chemistry or a related scientific discipline.Demonstrated hands-on proficiency with advanced high-resolution and triple quadrupole LC-MS platforms.Proven expertise in sample preparation methodologies for large biomolecules (digestion, enrichment, depletion, and labeling).Strong collaborative and independent problem-solving capabilities with excellent scientific communication skills. 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.