Senior Associate Scientist

Job Title : _Senior Associate Scientist_ + _Location:_ _Cambridge, MA_ About the Job At Sanofi we are committed in our quest to be a world-class biologics research organization and are steadfast in our goal to bring next generation, transformative therapies to patients. Our global Large Molecule Research (LMR) organization is focused on antibodies and NANOBODYu00ae molecules as therapeutic modalities. Our platform enables and partners closely with other research platforms and Sanofiu2019s therapeutic areas (Immunology & Inflammation, Immuno-Oncology, Rare & Neurologic Diseases) in the discovery and ultimate delivery of new candidate molecules. We are seeking a talented and highly motivated Senior Associate Scientist to join our dynamic team in the Molecular, Expression and Screening Technologies (MEST) Group within Sanofiu2019s North America R&D LMR organization. The lab-based candidate will be responsible for the ultra-high-throughput expression of protein/antibody tools and therapeutic candidates designed by state-of-the-art digital AI/ML models and structural biology using cutting-edge automated systems. The candidate will work closely with other functional groups in MEST as well as LMR (Antibody Discovery, Protein Production and Protein Engineering) to discover new therapeutic antibodies. The focus of this position is on the day-to-day operation of high-throughput protein production systems including scheduling software, maintenance and troubleshooting of this system and its components. Experience with mammalian cell culturing, maintenance and expansion of cell lines as well as the transfection of mammalian cells using recombinant DNA are key. The demand for production of complex variants has significantly increased year on year, with additional increases expected. Join the engine of Sanofiu2019s mission u2014 where deep immunoscience meets bold, AI-powered research. In R&D, youu2019ll drive breakthroughs that could turn the impossible into possible for millions. About Sanofi: Weu2019re an R&D-driven, AI-powered biopharma company committed to improving peopleu2019s lives and delivering compelling growth. Our deep understanding of the immune system u2013 and innovative pipeline u2013 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 peopleu2019s lives. Main Requirements: + Experience in running automation and high throughput instrumentation including liquid handlers (Tecan/Hamilton). + Hands-on experience with transient mammalian protein expression + Experience with mammalian cell culturing, transfecting mammalian cells with recombinant DNA. + Ability to work with biological registration systems (example: GeneData Biologics). + Ability to transform and analyze large datasets through a variety of methods (e.g., Spotfire). + Must be proficient with Microsoft Excel and other Microsoft Office applications. + Detail-oriented, strong skills in organization, time management, and teamwork are essential. + Ability to present findings to diverse scientific groups in clear and concise manner. Preferred: + Molecular Biology skills are desired. About You Basic Qualifications: + BS or MS in biology or related field and at least 3 years of experience in a research laboratory or a biopharma/biotech company. 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 itu2019s 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 weeksu2019 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. 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. #GD-SA #LI-SA #vhd Pursue _progress_ , discover _extraordinary_ Better is out there. Better medications, better outcomes, better science. But progress doesnu2019t happen without people u2013 people from different backgrounds, in different locations, doing different roles, all united by one thing: a desire to make miracles happen. So, letu2019s be those people. At Sanofi, we provide equal opportunities to all regardless of race, colour, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, ability or gender identity. Watch our ALL IN video ( and check out our Diversity Equity and Inclusion actions at ( _US and Puerto Rico Residents Only_ Sanofi Inc. and its U.S. affiliates are Equal Opportunity and Affirmative Action employers committed to a culturally inclusive and diverse workforce. All qualified applicants will receive consideration for employment without regard to race; color; creed; religion; national origin; age; ancestry; nationality; natural or protective hairstyles; 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. _North America Applicants Only_ The salary range for this position is: $75,000.00 - $108,333.33 All compensation will be determined commensurate with demonstrated experience. Employees may be eligible to participate in Company employee benefit programs. Additional benefits information can be found through the LINK (. Global Terms & Conditions and Data Privacy Statement ( Sanofi is dedicated to supporting people through their health challenges. We are a global biopharmaceutical company focused on human health. We prevent illness with vaccines, provide innovative treatments to fight pain and ease suffering. We stand by the few who suffer from rare diseases and the millions with long-term chronic conditions. With more than 100,000 people in 100 countries, Sanofi is transforming scientific innovation into healthcare solutions around the globe. Discover more about us visiting or via our movie We are Sanofi ( As an organization, we change the practice of medicine; reinvent the way we work; and enable people to be their best versions in career and life. We are constantly moving and growing, making sure our people grow with us. Our working environment helps us build a dynamic and inclusive workplace operating on trust and respect and allows employees to live the life they want to live. All in for Diversity, Equity and Inclusion at Sanofi - YouTube (

Created: 2026-03-23