Senior Associate Scientist

Pfizer • Chesterfield, MO

1d • $68,600 - $114,300 • Onsite

About The Position

At Pfizer, our purpose is to deliver breakthroughs that change patients’ lives. As a Senior Associate Scientist, you will be at the forefront of this mission, working within our Research & Development division. Your role will be pivotal in translating advanced science and technologies into therapies and vaccines that matter most. By leveraging cutting-edge design and process development capabilities, you will help accelerate the delivery of best-in-class medicines to patients globally, ultimately improving their lives.

Requirements

• BA/BS with 3 to 5 years of experience performing biotherapeutics testing in a GMP environment.
• Master's Degree with 4 to 6 years of experience performing biotherapeutics testing in a GMP environment.
• Strong documentation skills and attention to detail
• Experience with method validation
• Ability to extract relevant information from scientific literature
• Proficiency in recording observations, facts, data, and conclusions during experimental work or cGMP investigations
• Solid understanding of fundamental analytical chemistry, including functional group recognition and compound characterization
• Experience using spectroscopic and chromatographic techniques
• Experience in GMP laboratory operations and logistics
• Effective interaction with peers and leaders as part of a multi-disciplinary team
• Strong verbal and written communication skills
• Permanent work authorization in the United States.

Nice To Haves

• Understanding of various scientific software or software used in pharmaceutical or production environments
• Good Laboratory Practices (part of GxP) and Good Manufacturing Practices (also cGMP) knowledge
• Problem-solving skills and the ability to make decisions based on limited options
• Initiative and proactive approach to tasks and projects
• Experience using common AI tools, including generative technologies such as ChatGPT or Microsoft Copilot, to support problem solving and enhance productivity.
• Demonstrated curiosity for exploring how these tools can improve outcomes and understanding of responsible AI practices, including risk management and ethical use

Responsibilities

• Conduct qualitative and quantitative analyses of various compounds and biologics to determine their properties during chemical syntheses, fermentation, or drug product development
• Perform analytical method lifecycle activities such as development, validation, and transfer activities for both small molecules and complex formulations
• Maintain written records of all experimental work in compliance with GLP/GMP and departmental SOPs
• Assist in the maintenance and renewal of laboratory instruments, systems, or apparatus, and improve safe and effective working practices
• Attend project team and brainstorming meetings to present data and apply technical skills to assignments
• Work under moderate supervision with regular review and identify activities to support work group/project team goals
• Contribute to the achievement of immediate work group goals and collaborate with other team members
• Prioritize work to meet project deadlines and ensure participation and contribution as a team member
• Continuously improve safe and effective working practices in the laboratory environment
• Responsible for performing and troubleshooting analytical assays, while applying these methods across a board range of early and late-stage products in a cGMP environment.

Benefits

• 401(k) plan with Pfizer Matching Contributions
• Additional Pfizer Retirement Savings Contribution
• Paid vacation, holiday and personal days
• Paid caregiver/parental and medical leave
• Health benefits to include medical, prescription drug, dental and vision coverage
• Relocation assistance may be available based on business needs and/or eligibility.

What This Job Offers

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