Associate Scientist, Immunology

Why Patients Need You
Pfizer’s purpose is to deliver breakthroughs that change patients’ lives. Research and Development is at the heart of fulfilling this mission as we translate advanced science into therapies and vaccines that matter most. As part of the Cell-Mediated Immunoassays (CMI) group, you will contribute to understanding immune responses that drive vaccine efficacy and safety.

What You Will Achieve
As an Associate Scientist in the CMI group, you will play a critical role in generating high-quality cellular immunology data to support Pfizer’s clinical vaccine programs. The primary focus of this role is to execute clinical assays, primarily flow cytometry, with the potential to support additional assays such as ELISPOT and ADCC. Beyond routine testing, you will help drive operational excellence by applying 5S, automation, and process optimization to strengthen laboratory workflows.

How You Will Achieve It

Perform high-throughput flow cytometry assays to characterize cellular immune responses

Support additional cellular immunoassays such as ELISPOT and ADCC as needed.

Maintain compliance with GxP and internal SOPs for all laboratory activities

Support the qualification of new assays and ensure accurate documentation of experimental work

Drive operational improvements, including 5S, laboratory automation, and process optimization, to increase the efficiency and robustness of testing workflows

Help uphold quality and compliance across CMI through sound documentation practices, data integrity, and audit-readiness

Prepare reagents, maintain inventory, and manage sample workflows efficiently

Analyze and interpret assay results and present findings to team members and leadership

Collaborate within the CMI group and cross-functionally to support vaccine development programs

Qualifications

Must-Have

Bachelor's degree in a relevant scientific discipline w/ 0+ to 2 years of experience.

Hands-on laboratory experience in immunology or a related field

Ability to work collaboratively in a team environment

Ability to manage multiple priorities and adapt to changing business needs

Scientific curiosity and a desire to continuously learn and expand technical expertise

Nice-to-Have

Experience with flow cytometry and understanding of its scientific principles

Knowledge of immunology and cellular immune responses

Familiarity with ELISPOT, ADCC or other biofunctional assays

Understanding of relevant statistics and data analysis

Experience with laboratory automation and high-throughput workflows

Experience with continuous improvement or Lean methodologies (e.g., 5S)

Familiarity with LIMS or other electronic laboratory systems

Exposure to mammalian cell culture and aseptic techniques

Prior experience in a clinical or regulated laboratory environment

AI fluency, with interest in applying AI and digital tools to workflows

Work Location Assignment: On Premise


The annual base salary for this position ranges from $60,200.00 to $100,400.00. In addition, this position is eligible for participation in Pfizer’s Global Performance Plan with a bonus target of 7.5% of the base salary. We offer comprehensive and generous benefits and programs to help our colleagues lead healthy lives and to support each of life’s moments. Benefits offered include a 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, and health benefits to include medical, prescription drug, dental and vision coverage. Learn more at Pfizer Candidate Site – U.S. Benefits | (uscandidates.mypfizerbenefits.com). Pfizer compensation structures and benefit packages are aligned based on the location of hire. The United States salary range provided does not apply to Tampa, FL or any location outside of the United States.





Relocation assistance may be available based on business needs and/or eligibility.

Candidates must be authorized to be employed in the U.S. by any employer.

U.S. work visa sponsorship (such as TN, O-1, H-1B, etc.) is not available for this role now or in the future.

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. This position requires permanent work authorization in the United States.

Pfizer endeavors to make www.pfizer.com/careers accessible to all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process and/or interviewing, please email disabilityrecruitment@pfizer.com. This is to be used solely for accommodation requests with respect to the accessibility of our website, online application process and/or interviewing. Requests for any other reason will not be returned.

To learn more about acceptable and prohibited uses of AI during the recruitment process, please review our candidate AI-use guidelines available on Pfizer Careers.


Research and Development


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