Associate Scientist

Pfizer • St. Louis, MO

2d • $60,200 - $100,400 • Onsite

About The Position

The Associate Scientist will join Pfizer’s Analytical R&D organization in Chesterfield, Missouri, supporting development of biological therapeutics and vaccines. The role applies analytical methods to assess product quality, detect impurities, and characterize products. Testing is performed in R&D and/or regulated settings in support of clinical drug and vaccine candidates. The group also develops, transfers, verifies, and qualifies methods supporting process and formulation development for biotherapeutics and vaccines.

The successful candidate will develop, troubleshoot, and use analytical methodologies supporting process development of biotherapeutics, vaccines, and oligonucleotides. They will build proficiency across analytical techniques, including colorimetric, HPLC, and electrophoresis assays; document, archive, and report data according to corporate guidelines; and prepare technical reports of analytical results. The role requires effective collaboration with peers and leaders on a multidisciplinary team in a fast-paced environment.

The position is on premises. It involves occasional light lifting and periods of standing, sitting, or walking. The stated annual base salary range is $60,200 to $100,400, with eligibility for Pfizer’s Global Performance Plan at a 7.5% bonus target. Benefits include a 401(k) plan with Pfizer matching contributions and an additional retirement savings contribution, paid vacation, holidays and personal days, paid caregiver/parental and medical leave, and medical, prescription drug, dental, and vision coverage. Relocation assistance may be available based on business needs and/or eligibility. U.S. work visa sponsorship is not available, and permanent U.S. work authorization is required.

Requirements

• Bachelor of Science in chemistry, biochemistry, biology, or a related field.
• Experience using common AI tools, including generative technologies such as ChatGPT or Microsoft Copilot, to support problem solving and enhance productivity.
• Curiosity about using AI tools to improve outcomes and understanding of responsible AI practices, including risk management and ethical use.
• Attention to detail, strong organizational skills, ability to multitask, and effective interpersonal and communication skills.
• Permanent authorization to work in the United States; U.S. work visa sponsorship is not available.

Nice To Haves

• Laboratory experience with a variety of analytical laboratory techniques.
• Ability to follow established procedures under minimal supervision.
• Experience with Quality Systems and Good Documentation Practices.
• Some knowledge of the drug development process for progression of biological candidates.
• Excellent documentation skills.
• Self-motivation and effectiveness in a team-based environment.
• Effective oral and written communication skills.
• Experience analyzing large molecules.
• Experience with laboratory data systems such as Laboratory Information Management Systems.

Responsibilities

• Develop, troubleshoot, and use analytical methodologies to support process development of biotherapeutics, vaccines, and oligonucleotides.
• Become proficient in a range of analytical methodologies, including colorimetric, HPLC, and electrophoresis assays.
• Apply analytical methods to assess product quality, detect impurities, and characterize products.
• Record, archive, and report data in accordance with corporate guidelines.
• Document analytical results in technical reports.
• Collaborate effectively with peers and leaders as part of a multidisciplinary team.

Benefits

• 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.
• Medical, prescription drug, dental, and vision coverage.
• Eligibility for Pfizer’s Global Performance Plan with a bonus target of 7.5% of base salary.
• Relocation assistance may be available based on business needs and/or eligibility.

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level