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Associate Scientist, Microbiology

Job in Chesterfield, St. Louis city, Missouri, 63005, USA
Listing for: Pfizer
Full Time position
Listed on 2026-08-22
Job specializations:
  • Healthcare
    Medical Science, Data Scientist, Clinical Research, Medical Technologist & Lab Technician
Salary/Wage Range or Industry Benchmark: 60000 - 100000 USD Yearly USD 60000.00 100000.00 YEAR
Job Description & How to Apply Below
Location: Chesterfield

Why Patients Need You

Pfizer’s purpose is to deliver breakthroughs that change patients’ lives. Research and Development is at the heart of fulfilling Pfizer’s purpose as we work to translate advanced science and technologies into the therapies and vaccines that matter most. Whether you are in the discovery sciences, ensuring drug safety and efficacy, or supporting clinical trials; you will apply cutting edge design and process development capabilities to accelerate and bring the best-in-class medicines to patients around the world.

What

You Will Achieve

As an Associate Scientist, you will be at the center of our operations and you’ll find that everything we do, every day, is in line with an unwavering commitment to quality. Your work in the Analytical R&D Microbiology Strategy & Testing organization helps enable development of biological therapeutics r responsibilities will be applying GMP microbiological methods (bioburden, endotoxin, PCR, etc.) in the assessment of product quality and detection of impurities.

Your contributions are part of a group performing microbiology identification, testing, and method qualifications to support multiple sites in the Pfizer network. You will be responsible for Environmental Monitoring (EM) of manufacturing facilities, waters, and compressed gases at the site. The Associate Scientist is responsible for utilizing established microbiological methodologies to support GMP in-process and research & development testing of clinical supplies.

You will become proficient in aseptic lab technique and facility gowning to thrive in this fast-paced environment. Your strong foundation in general scientific practice, its principles and concepts will help in meeting critical deadlines. You will be relied on as a technical contributor to assess the assigned tasks and make decisions that involve direct application of your knowledge. It is your focus and commitment that will help in making Pfizer ready to achieve new milestones and help patients across the globe.

How

You Will Achieve It

Exercise and build basic team effectiveness skills {e.g., commitment, feedback, consensus management) within the work group. Review and contribute to technical documents, including validation protocols and reports, analytical test procedures, investigation reports, monitoring trend reports, and change controls. Directly interact with multiple department team members, including presentation of data. Complete all Good Manufacturing Practice {part of GxP} and safety training in compliance with departmental requirements and follow appropriate safety practices in the workplace.

Perform various experiments for microbial analysis, qualification/validation, and characterization of biological therapeutics. Perform and document environmental monitoring of manufacturing areas and related Microbiological activities. Conduct all work according to appropriate Standard Operating Procedures following Good Manufacturing Practices/Good Laboratory Practices (GMP/GLP) requirements and ensure integrity of all data generated and documented. Independently analyze and provide conclusions regarding data generated. Plan and prioritize assigned testing activities.

Present problems and propose solutions in discussions with group members.

Education & Experience

Must-Have Bachelor's degree in microbiology, biochemistry, biology, or related field + 0 - 2 years of experience.

  • Excellent documentation skills with high attention to detail
  • Strong organizational skills and effective interpersonal and written communication skills
  • Self-motivated and highly effective in a team-based environment
  • Ability to follow established procedures under minimal supervision
Nice-to-Have

1+ years’ experience with Quality Systems in a Good Manufacturing Practices (GMP) environment.

  • Experience with laboratory data systems such as Laboratory Information Management Systems (LIMS)
  • Hands‑on experience or working knowledge in pharmaceutical industry and handling of analytical instruments
  • Some knowledge of drug development process for progression of biological candidates
  • Knowledge of regulatory requirements and guidelines
  • Ability to manage multiple tasks and projects…
Position Requirements
10+ Years work experience
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