Associate Scientist, Bioassay and Impurity Sciences
Pfizer • Andover, MA • Posted July 04, 2026
Position Overview
**What You Will Achieve**
The qualified candidate will join the Analytical R&D organization in Andover, MA, to enable development of biological therapeutics. Within Analytical R&D, the candidate will join the Bioassay and Impurity Sciences Group and focus on monoclonal antibodies, fusion proteins, peptides, and other biological modalities. The group develops analytical methodologies and strategies needed to progress biotherapeutic products in the pipeline, which include method development, qualification, transfer, validation, sample testing, process support, formulation and stability support, and product characterization.
**How You Will Achieve It**
+ The candidate is responsible for performing and maintaining immunoassay and cell-based assay methods for a broad range of biotherapeutics for early and late-stage products.
+ The candidate is expected to execute, document, report, and review lab work according to GMP practices.
+ The candidate is expected ...
The qualified candidate will join the Analytical R&D organization in Andover, MA, to enable development of biological therapeutics. Within Analytical R&D, the candidate will join the Bioassay and Impurity Sciences Group and focus on monoclonal antibodies, fusion proteins, peptides, and other biological modalities. The group develops analytical methodologies and strategies needed to progress biotherapeutic products in the pipeline, which include method development, qualification, transfer, validation, sample testing, process support, formulation and stability support, and product characterization.
**How You Will Achieve It**
+ The candidate is responsible for performing and maintaining immunoassay and cell-based assay methods for a broad range of biotherapeutics for early and late-stage products.
+ The candidate is expected to execute, document, report, and review lab work according to GMP practices.
+ The candidate is expected ...