Bioassay Development Senior Scientist
Sanofi
September 02, 2026
Remote friendly (Framingham, MA)
United States
$100,500 - $145,166.66 USD yearly
Clinical Research and Development
Main Responsibilities:
- Apply scientific expertise to initiate, design, direct, and execute analytical experiments to develop and qualify relative potency methods for early/late-stage clinical molecules.
- Innovate and engineer novel cell lines to evaluate molecules’ mechanisms of action.
- Support mAb and bi/tri-specific development and other modalities (viral and non-viral gene therapy).
- Maintain good documentation in the electronic lab notebook.
- Maintain GMP compliance (follow GMP procedures, support routine maintenance, and train on drafting appropriate SOPs).
- Collaborate with interdisciplinary teams (biologists, chemists, quality, legal, and others).
- Lead/contribute to presentations and publications; communicate findings and methodologies.
- Mentor interns and junior scientists.
- Collaborate with CROs/CDMOs for training, outsourced activities, co-validation, or testing.
Basic Qualifications:
- PhD in a relevant field (Molecular/Cell Biology, Biochemistry, Biotechnology, Immunology, Microbiology, Biomedical Sciences, Life Sciences, or related) with 1+ year relevant research experience; or Master’s with at least 4 years relevant experience.
- Experience in mammalian cell culture and either engineering cell lines or transgenic model systems.
- Extensive experience with at least two: qPCR, Western blotting, and plate-based assays (e.g., ELISA, fluorescence-based assays).
- Strong time management; excellent organization and scientific communication.
Preferred Qualifications:
- Experience with SnapGene, Softmax, luminometer, or relative potency statistical analyses.
- Knowledge of biologics’ standard analytical methods and controls.
Compensation:
- All compensation determined commensurate with demonstrated experience; employees may be eligible for company employee benefit programs.
- Apply scientific expertise to initiate, design, direct, and execute analytical experiments to develop and qualify relative potency methods for early/late-stage clinical molecules.
- Innovate and engineer novel cell lines to evaluate molecules’ mechanisms of action.
- Support mAb and bi/tri-specific development and other modalities (viral and non-viral gene therapy).
- Maintain good documentation in the electronic lab notebook.
- Maintain GMP compliance (follow GMP procedures, support routine maintenance, and train on drafting appropriate SOPs).
- Collaborate with interdisciplinary teams (biologists, chemists, quality, legal, and others).
- Lead/contribute to presentations and publications; communicate findings and methodologies.
- Mentor interns and junior scientists.
- Collaborate with CROs/CDMOs for training, outsourced activities, co-validation, or testing.
Basic Qualifications:
- PhD in a relevant field (Molecular/Cell Biology, Biochemistry, Biotechnology, Immunology, Microbiology, Biomedical Sciences, Life Sciences, or related) with 1+ year relevant research experience; or Master’s with at least 4 years relevant experience.
- Experience in mammalian cell culture and either engineering cell lines or transgenic model systems.
- Extensive experience with at least two: qPCR, Western blotting, and plate-based assays (e.g., ELISA, fluorescence-based assays).
- Strong time management; excellent organization and scientific communication.
Preferred Qualifications:
- Experience with SnapGene, Softmax, luminometer, or relative potency statistical analyses.
- Knowledge of biologics’ standard analytical methods and controls.
Compensation:
- All compensation determined commensurate with demonstrated experience; employees may be eligible for company employee benefit programs.