Senior Associate Scientist-Vaccine Development (Analytical, Assays)

At Pfizer, our purpose is to deliver breakthroughs that change patients’ lives. This is a laboratory‑based position within the Vaccine Research & Development Analytical Development organization. The Senior Associate Scientist will support vaccine programs through analytical method development, sample testing, and data interpretation, with a primary focus on separation‑based analytical techniques.

Responsibilities

Perform analytical method development and sample testing under manager supervision in support of vaccine process development, formulation development, release, stability, and characterization; Apply separation-based techniques, including but not limited to: HPLC (SEC, IEX, RP) and CE; Utilize LC MS–based methods for characterization of vaccine antigens and related analytes; Execute method verification, qualification, and optimization studies under appropriate supervision; Analyze and interpret experimental data; summarize results and conclusions clearly and provide to the manager; Document experimental work contemporaneously in electronic laboratory notebooks in compliance with internal standards; Author and review analytical methods, protocols, and technical notes or method qualification reports with appropriate guidance; Participate in general laboratory activities, including instrument maintenance, reagent management, and laboratory housekeeping; Work in compliance with applicable data integrity expectations, as required; Continuously improve safe and effective working practices in the laboratory environment

Requirements

BS with 3 to 5 years of relevant experience, or MS with 0 to 3 in Chemistry, Biochemistry, Analytical Chemistry, or related field; Hands-on experience with chromatographic or electrophoretic separations; Strong data analysis, documentation, and communication skills; Ability to work effectively in a team-based laboratory environment; Candidates must be authorized to be employed in the U.S. by any employer; This position requires permanent work authorization in the United States

Nice to have

LC-MS experience supporting proteins and/or mRNAs preferred; Experience using common AI tools, including generative technologies such as ChatGPT or Microsoft Copilot, to support problem solving and enhance productivity; Experience with liquid chromatography–mass spectrometry (LC-MS)

Benefits

Eligible for participation in Pfizer's Global Performance Plan with a bonus target of 7.5% of the base salary; comprehensive and generous benefits and programs; 401(k) plan with Pfizer Matching Contributions and an additional Pfizer Retirement Savings Contribution; paid vacation, holiday and personal days; paid caregiver/parental and medical leave; health benefits including medical, prescription drug, dental and vision coverage; relocation assistance may be available based on business needs and/or eligibility