Summer-Fall 2026 Co-Op - Recombinant Mammalian MSAT Downstream

Sanofi • Framingham, MA

1d • Onsite

About The Position

Join a global network that powers how Sanofi delivers — seamlessly, purposefully, and at scale. In Manufacturing & Supply, you’ll help reimagine how life-changing treatments reach people everywhere, faster. The 2026 Summer/Fall Co-Op will work in the downstream process development group of the drug substance function in Recombinant Mammalian Science, Analytics, and Technology (MSAT). The co-op will work in a laboratory setting on a project related to protein purification process characterization and/or protein drug substance stability. This position is 6 months on a full-time basis July 2026 – December 2026. The drug substance function within Recombinant Mammalian Science, Analytics, and Technology (MSAT) is the owner of Life Cycle Management (LCM) of DS Processes within Sanofi biologics manufacturing network. We deliver innovative, robust, and cost-effective next generation processes and provide commercial manufacturing support. The function is responsible for tech transfer activities including process fit-gap assessment, process validation, prepare dossier sections, & PAI support to enable launch of new and LCM products. Our expansive portfolio covers 17 products, 5 modalities, 3 expression systems within 12 internal and external global sites in US and EU. We will be supporting launch of 20 new products in next 5 years including monoclonal and multi-specific antibodies, fusion proteins, antibody-drug conjugates, synthorins and nanobodies. In recent years we have successfully established second-generation manufacturing process with a continuous process platform. We are pursuing future innovations such as digital labs, factories of future and advanced analytics-based process understanding and control. 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.

Requirements

• Currently pursuing a Bachelor's, Master's, or PhD in Chemical Engineering, Biochemistry, Biotechnology, or related discipline at an accredited college or university with the expectation that you will complete your current degree by the Spring of 2027
• Must be able to relocate to the office location and work 40hrs/week, Monday-Friday, for the full duration of the co-op/internship
• Must be enrolled in an accredited college or university throughout the duration of the co-op/internship
• Must be permanently authorized to work in the U.S. and not require sponsorship of an employment visa (e.g., H-1B or green card) at the time of application or in the future. Students currently on CPT, OPT, or STEM OPT usually require future sponsorship for long term employment and do not meet the requirements for this program unless eligible for an alternative long-term status that does not require company sponsorship

Nice To Haves

• Experience in a biotechnology or pharmaceutical industry laboratory setting
• Experience with downstream processes at lab, pilot, or production scale including chromatography (e.g. AKTA), tangential flow filtration, or nanofiltration
• Knowledge in protein stability studies and routine protein analytical techniques
• Strong technical writing and presentation skills

Responsibilities

• Work on an MSAT development project, to include execution of chromatography and filtration operations, protein stability studies, analytical testing, and data analysis.
• Collaborate with the MSAT project team; attend regular team meetings and share study progress and results.
• Participate in design and execution of experiments using small-scale models, analyze and interpret results, and recommend additional experiments.
• Author internal presentations, protocols, and technical reports, as applicable.

Benefits

• 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Intern
• Number of Employees: 5,001-10,000 employees