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Senior Associate Scientist

Chesterfield, Missouri
Closing date
Jul 10, 2022

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Physical Sciences, Chemistry
Position Type
Full Time
Job Type
Staff Scientist
Organization Type
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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 a Senior 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 significant experience of applying knowledge of principles, concepts, and practices of the discipline will make you a critical member of the team. You will perform qualitative and quantitative analyses of biologics and vaccines to determine product quality and characteristics and support development of the manufacturing process and product structure and function. Your skill and knowledge will help in making decisions that require choosing among limited options. You are proactive in contributing to all team discussions and creating an environment of collaboration. It is your innovative scientific temperament that will help in making Pfizer ready to achieve new milestones and help patients across the globe.

How You Will Achieve It
  • The candidate is responsible for development, qualification and testing of qPCR-based assays, immunoassays and/or cell-based assays and their associated critical reagents in a GMP environment.
  • The candidate is expected to document and report lab work according to GMP practices
  • The candidate must be able to interact effectively with multi-disciplinary project teams
  • The candidate is expected to tabulate data, provide data interpretation to their teams and to their customers
  • The candidate is expected to revise/review/author test technical reports.
  • The candidate is expected to have intermediate proficiency in Microsoft Office (Word, Excel, PowerPoint)
  • Contribute to achievement of immediate work group goals and collaborate with other team members. • Work closely with analytical experts and project teams to provide timely support for process and product development in the form of quality data which can be used in support of regulatory documentation of investigational new drug and biologic license applications.
  • Assist in the maintenance and renewal of laboratory instruments, systems or apparatus, and in the maintenance and continuous improvement of safe and effective working practices.
  • Independently carry out all aspects of practical work necessary to provide right first time results.
  • Complete professional level biological, immunological, chemistry and biochemistry assignments independently in support of programs, and investigations with minimal supervision while demonstrating cGMP and scientific principles.


  • Bachelor's Degree in biology, biochemistry, immunology, biotechnology or related field with 3+ years of experience with qualification, validation, and/or testing of cellbased, qPCR-based assays, and/or immunoassays and their associated critical reagents or Master's degree with 0+ years of relevant experience.
  • Experience with laboratory data systems
  • Proven record of delivering results in a fast paced environment and effective communication to project teams
  • Demonstrated technical writing skills and good interpersonal skills
  • Ability to extract relevant information from scientific literature, accurately record observations, facts, data and conclusions during experimental work or Good Manufacturing Practices (also cGMP) investigations

  • Experience with fluorescence-based assays • Cell based assay experience
  • Experience in GxP (GLP, GMP) environment and implementation of continuous improvement practices
  • Desire to develop their own technical skill set is essential

  • Position requires occasional light lifting and periods of standing, sitting or walking.

Other Job Details:
  • Work Location Assignment: On Premise colleagues work in a Pfizer site because it's needed to get their job done. They may have flexibility to work remotely from time to time, but they are primarily on-site
  • Last Date to Apply for Job: July 25th , 2022

Pfizer requires all U.S. new hires to be fully vaccinated for COVID-19 prior to the first date of employment. As required by applicable law, Pfizer will consider requests for Reasonable Accommodations.

Sunshine Act

Pfizer reports payments and other transfers of value to health care providers as required by federal and state transparency laws and implementing regulations. These laws and regulations require Pfizer to provide government agencies with information such as a health care provider's name, address and the type of payments or other value received, generally for public disclosure. Subject to further legal review and statutory or regulatory clarification, which Pfizer intends to pursue, reimbursement of recruiting expenses for licensed physicians may constitute a reportable transfer of value under the federal transparency law commonly known as the Sunshine Act. Therefore, if you are a licensed physician who incurs recruiting expenses as a result of interviewing with Pfizer that we pay or reimburse, your name, address and the amount of payments made currently will be reported to the government. If you have questions regarding this matter, please do not hesitate to contact your Talent Acquisition representative.

EEO & Employment Eligibility

Pfizer is committed to equal opportunity in the terms and conditions of employment for all employees and job applicants without regard to race, color, religion, sex, sexual orientation, age, gender identity or gender expression, national origin, disability or veteran status. Pfizer also complies with all applicable national, state and local laws governing nondiscrimination in employment as well as work authorization and employment eligibility verification requirements of the Immigration and Nationality Act and IRCA. Pfizer is an E-Verify employer.

Research and Development
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