Senior Associate Scientist (Bioassay Development) Full-time

Pursue Progress, Discover Extraordinary

Better is out there. Better medications, better outcomes, better science. But progress doesn't happen without people – people from different backgrounds, in different locations, doing different roles, all united by one thing: a desire to make miracles happen. So, let's be those people.

At Sanofi, we provide equal opportunities to all regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, ability or gender identity.

Join the engine of Sanofi's mission — where deep immunoscience meets bold, AI-powered research. In R&D, you'll drive breakthroughs that could turn the impossible into possible for millions.

Senior Associate Scientist (Bioassay Development)

Location: Framingham, MA

Are you ready to shape the future of medicine? The race is on to speed up drug discovery and development to find answers for patients and their families. Your skills could be critical in helping our teams accelerate progress.

Sanofi is seeking a highly motivated Associate Scientist to join the Analytical Development team within Mammalian Bioanalytics, which develops, validates, and transfers analytical methods used for characterization and release of biologics to support clinical development of new medicines. The successful candidate will participate in the development and validation of analytical methods involving qPCR, ELISA, MSD, cell-based assays and other analytical techniques routinely used to support biotherapeutics development. This individual will conduct pre-clinical and clinical lot release and stability testing of biotherapeutics, including antibodies, antibody-like molecules, enzymes, and other therapeutics. This role operates within a cGMP environment and requires excellent verbal and written communication skills, strong attention to detail, and the ability to collaborate effectively with cross-functional departments.

About Sanofi:

We're an R&D-driven, AI-powered biopharma company committed to improving people's lives and delivering compelling growth. Our deep understanding of the immune system – and innovative pipeline – enables us to invent medicines and vaccines that treat and protect millions of people around the world. Together, we chase the miracles of science to improve people's lives.

Main Responsibilities

• Participate in the development, qualification, validation, and transfer of qPCR, ELISA, MSD, cell-based assays and potentially other analytical methods in a regulated GMP environment.
• Perform routine cell culture activities such as thawing, passaging and banking cells.
• Cross train in separation techniques such as cIEF, CE-SDS and SEC and support GMP release and stability testing as needed
• Perform cGMP sample testing according to standard operating procedures (SOPs) and compile data packets.
• Assist in the drafting of SOPs and technical reports and be able to effectively communicate progress and experimental results to supervisor and team members.
• Support Analytical equipment maintenance by performing regular scheduled activities to comply with GMP standards to maintain a GMP compliant laboratory.
• Ensure timely completion and delivery of all analytical results and documentation (technical reports, SOPs, ELN, LIMS, etc.) to support product development during clinical phases.

About You

• B.A./B.S. degree in Biology, Biochemistry, Immunology or related discipline with a minimum of 2 years of relevant experience in the biotechnology/pharmaceutical industry, or Master's Degree in Biology, Biochemistry, Immunology or Biotechnology, or related discipline with 0 to 2 years of experience.
• An understanding of Biology, Biochemistry, Biophysical methods (residual DNA, binding assays, cell-based assays)
• Must be organized, efficient, and able to work according to timelines.
• Excellent organizational and communication skills
• Must be able to work collaboratively in a fast-paced, team-oriented environment.
• Must have permanent US work authorization

Why Choose Us

• Bring the miracles of science to life alongside a supportive, future-focused team.
• Discover endless opportunities to grow your talent and drive your career, whether it's through a promotion or lateral move, at home or internationally.
• Enjoy a thoughtful, well-crafted rewards package that recognizes your contribution and amplifies your impact.
• Take good care of yourself and your family, with a wide range of health and wellbeing benefits including high-quality healthcare, prevention and wellness programs and at least 14 weeks' gender-neutral parental leave.
• Be part of a pioneering biopharma company that engages patients early in drug development and uses their insights to design studies that reflect real-world needs.
• Help improve the lives of millions of people globally by making drug development quicker and more effective.
• Work at the forefront of drug discovery, harnessing cutting-edge AI, data, and digital platforms to push the boundaries of science.