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Senior Bioassay Research Associate

Framingham, Massachusetts



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"At Sanofi, We are guided by a deep appreciation and understanding of what it means to live with a rare blood disorder, and we learn by listening to the community – patients, caregivers physicians, and other healthcare professionals."

Shannon Resetich US Head Rare Diseases & Blood Disorders

"Patients are at the center of all that we do at Sanofi. Our teams are focused on advancing transformational therapies that can address serious unmet needs for people living with rare blood disorders, and expanding global patient access to our medicines."

Mouhamed Gueye US Head Medical Rare Blood Disorders


Job Responsibilities / Department Description:

Sanofi is seeking a highly motivated Senior Research Associate to join the Analytical Development team in Bioanalytics, which develops, validates, and transfers analytical methods used for characterization and release of biologics. The successful candidate will participate in the development and validation of molecular and cell-based analytical methods, including cell culture, PCR, western analysis and additional cell-based assays. Specifically, this individual will assist in engineering cell lines for use in cell-based assays and will participate in testing of pre-clinical and clinical lot release and stability testing of biotherapeutics, including gene therapy products, enzymes, antibody and antibody-like therapeutics.  Additionally, this job is within a cGMP setting and requires excellent verbal and written communication across several departments.

Job Responsibilities:

  • Engineering of cell lines to support potency assay development for both Mammalian and Genomic Medicines Groups

  • Participate in the development, qualification and validation of cell-based bioassays, binding assays, molecular assays, and potentially other analytical methods in a regulated GMP environment

  • Working in a GMP-compliant environment and adhering to all regulations.

  • Draft technical reports and effectively communicate results in project team meetings when needed.

  • Ensure timely completion and delivery of all analytical results and documentation (technical reports, SOPs, ELN, LIMS, etc.) to support product development during clinical phases. of milestones associated with specific projects including timely delivery of analytical reports, documents, SOPs and electronic lab notebook entries.

Basic Qualifications:

  • Bachelor's degree in Biochemistry, Biology, or related discipline with a minimum of 2 years of relevant experience in the biotechnology/pharmaceutical industry or master's degree in Biochemistry, Biology, or related discipline.

  • Organized, efficient and able to work according to timelines

  • Ability to work collaboratively in a fast-paced, team-orientated environment.

  • Must have permanent US work authorization Strong problem-solving skills.

  • Excellent verbal and written communication between departments and colleagues.

  • Ability to interpret scientific data and articulate conclusions.

Preferred Qualifications:

  • Experience with routine mammalian cell culture techniques including aseptic technique

  • Experience with molecular biology techniques such as genetic engineering and PCR analysis.

  • Experience with cell-based or binding assay method development in a pharmaceutical or biotechnology setting. 

  • Experience with flow cytometry, ELISA, FRET or cell-based effector function assays is a plus

  • Prior experience/exposure to immunological concepts and assays.

  • Proficient in Microsoft Word, Excel, PowerPoint and JMP

At Sanofi R&D North America, we deliver meaningful solutions for patients. We transform science into breakthrough, best-in-class and first-in-class medicines and vaccines. We believe in creating a diverse and inclusive workforce – and workplace – which brings together the collective brainpower of over 2,000 colleagues and provides you with an exciting place to grow and develop. We set the bar high, and we deliver. Join us and together we will build on our trusted legacy of breakthroughs for society. 

Sanofi Inc. and its U.S. affiliates are Equal Opportunity and Affirmative Action employers committed to a culturally diverse workforce. All qualified applicants will receive consideration for employment without regard to race; color; creed; religion; national origin; age; ancestry; nationality; marital, domestic partnership or civil union status; sex, gender, gender identity or expression; affectional or sexual orientation; disability; veteran or military status or liability for military status; domestic violence victim status; atypical cellular or blood trait; genetic information (including the refusal to submit to genetic testing) or any other characteristic protected by law.

As a healthcare company and a vaccine manufacturer, Sanofi has an important responsibility to protect individual and public health. All US based roles require individuals to be fully vaccinated against COVID-19 as part of your job responsibilities.

According to the CDC, an individual is considered to be “fully vaccinated” fourteen (14) days after receiving (a) the second dose of the Moderna or Pfizer vaccine, or (b) the single dose of the J&J vaccine. Fully vaccinated, for new Sanofi employees, is to be fully vaccinated 14 DAYS PRIOR TO START DATE. 



At Sanofi diversity and inclusion is foundational to how we operate and embedded in our Core Values. We recognize to truly tap into the richness diversity brings we must lead with inclusion and have a workplace where those differences can thrive and be leveraged to empower the lives of our colleagues, patients and customers. We respect and celebrate the diversity of our people, their backgrounds and experiences and provide equal opportunity for all.

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