Associate Scientist, Assay Development

Location

• United States - Massachusetts - Cambridge

We’re in relentless pursuit of breakthroughs that change patients’ lives. We innovate every day to make the world a healthier place. To fully realize Pfizer’s purpose – Breakthroughs that change patients’ lives – we have established a clear set of expectations regarding “what” we need to achieve for patients and “how” we will go about achieving those goals.

• Develop assays to identify and characterize peptide, antibody and multispecific candidates to support programs across multiple therapeutic areas. Biochemical assay formats may include protein binding, competition and enzymatic cleavage assays. Cell based assays may include binding (FACS and ELISA), competition, cell signaling (NanoBiT, calcium flux, cAMP, phospho-protein HTRF/Alpha
  
  LISA, etc) and reporter gene assays using a variety of cell lines.
• Execute high-throughput screens using automated and semi-automated platforms and analyze results.
• Collaborate with project teams to establish screening strategies, interpret results, and make decisions to drive programs forward.
• Write protocols, maintain electronic lab notebook, and regularly review literature to maintain knowledge of scientific trends and new technologies.

• Bachelor’s degree and 0‑3 years of experience in molecular biology, biochemistry, cell biology or related discipline, along with a basic understanding of biologics drug discovery workflows.
• Demonstrated experience in assay development and troubleshooting with methods such as HTRF, ELISA/DELFIA, FACS, and cell-based functional assays focused on signaling, proliferation, or cytotoxicity.
• Demonstrated experience with plate‑based assay formats and maintaining cell cultures is required.
• Track record of strong problem solving and organizational skills, attention to detail, and ability to multi‑task.
• Strong written and oral communication skills.

• Experience with Tecan or Beckman liquid handling platforms.
• Experience with high content imaging and multiplex assay formats.
• Experience writing scripts to automate data processing or other coding experience.

Requires work in BL2 laboratory environment with appropriate PPE.

January 22, 2026

The annual base salary for this position ranges from $60,200.00 to $97,500.00. 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 support each of life’s moments. Benefits include a 401(k) plan with Pfizer Matching Contributions, paid vacation, holiday, personal days, caregiver/parental and medical leave, and health benefits such as medical, prescription drug, dental and vision coverage.

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

Pfizer reports payments and other transfers of value to health care providers as required by federal and state transparency laws. ... (subject to further legal review).

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.