Senior Associate Scientist, Purification Development

Job title:

Senior Associate Scientist, Purification Development

Location:

Framingham, MA

Mammalian Purification Process Development, part of the Sanofi R&D CMC organization, is responsible for development, scale‑up, transfer, and characterization of purification processes for clinical and commercial manufacturing of therapeutic proteins from the mammalian production platform. In addition, the department develops next‑generation bioprocessing and process development technologies such as integrated and continuous bioprocessing, high‑throughput process development, and mechanistic modeling of bioprocesses. The department also works to support a global purification network and update our purification platform.

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.

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.

We are looking for candidates for the position of Senior Associate Scientist. This individual will join a dynamic and motivated team to develop downstream purification processes in support of early and late‑stage drug development programs. In addition, the Senior Associate Scientist will support the tech transfer of the developed process into the clinical manufacturing team or Industrial Affairs organization while ensuring the highest standards of safety, environmental, and regulatory compliance are maintained in the workplace.

• Plan and execute purification experiments using high‑throughput, benchtop, and/or pilot scale chromatography and filtration systems.
• Independently document experimental results in technical reports and present results at departmental meetings.
• Work with supervisor to design purification models and experiments and perform data analysis.
• Work with supervisor to evaluate new technologies to enhance purification process understanding, performance, and/or process robustness.
• Develop, maintain, and demonstrate knowledge of principles, theories, and techniques in area of responsibility.
• Stay abreast of relevant new technologies and published literature, including attending technical forums.
• Maintain good communication and collaboration with colleagues in Purification Process Development, as well as other departments.

• Master’s degree in chemical engineering, biochemical engineering, biochemistry or related discipline with the expectation that you will graduate by Fall 2026; or a bachelor’s degree in the same with a minimum of 2 years of relevant experience.
• An understanding of scientific principles underlying and/or experience with purification technologies and operations.

• Relevant laboratory experience operating and maintaining purification equipment (e.g. AKTA, Tecan, ultrafiltration/diafiltration).
• Experience with statistical analysis and modeling.
• Experience with programming languages such as Python, R, Matlab.
• Excellent planning, organization, and communication skills.
• Logical and critical thinking skills, as well as high level of scientific curiosity and innovation mindset.
• Ability to work independently and function in a matrix/collaborative/team‑oriented environment.

• 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…