Senior Associate Scientist

About the job

Sanofi is committed to be a world-class biologics research organization and strives to bring next generation, transformative therapies to its patients. Our global Large Molecule Research (LMR) organization is focused on antibodies and NANOBODY® molecules as therapeutic modalities. Our platform enables and partners closely with other research platforms and Sanofi’s therapeutic areas (Immunology & Inflammation, Immuno-Oncology, Rare & Neurologic Diseases) in the discovery and ultimate delivery of novel candidate molecules.

We are seeking a talented and highly motivated Senior Associate Scientist to join our team in the Molecular, Expression and Screening Technologies (MEST) Group within Sanofi’s North America R&D LMR organization. The lab-based candidate will be part of the Screening and Imaging sub-group and will be responsible for high-throughput functional screening of candidate molecules generated by our high throughput automated protein expression system, or provided by our Antibody Discovery, Antibody Engineering, or Antibody Production groups to aid in the discovery of new therapeutic antibodies. Over the coming years, we expect growing demand on our platform driven by new antibody modalities and more complex assay formats. An increased need for functional screening capacity will also result from Sanofi’s emerging state-of-the-art AI/ML pipeline, which will facilitate the design and structural elucidation of novel therapeutic antibody candidates.

The focus of this position is on the day-to-day operation of lab automation devices (dispensers, liquid handlers etc.), and an integrated high-throughput screening system, maintenance and troubleshooting of this system and its components. Experience with mammalian cell culture, i.e. maintenance and expansion of reporter cell lines, is instrumental.

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.

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 and are supported and enhanced through our diverse portfolio of medical device and diagnostic products. Together, we chase the miracles of science to improve people’s lives.

Main Responsibilities:

• Hands-on day-to-day maintenance of mammalian cell cultures (passaging, monitoring, contamination control, cryopreservation, thawing).
• Operation and routine maintenance of lab automation equipment (liquid handlers, dispensers) and a small integrated robotic system; adapt to different vendors/instrument models.
• Perform standard operating procedures (SOPs) and maintain accurate experimental logs and inventory records.
• Basic troubleshooting of cell culture workflows and automation pipelines; escalate complex issues appropriately.
• Support sample handling workflows for high-throughput cellular assays and coordinate with team members for experiments.
• Follow safety and regulatory protocols for working with biological materials.

About you

Education:

• BS or MS in biology, chemistry or related field and at least 2 years of experience in a research laboratory or a biopharma/biotech company.

Experience & Technical Skills:

• Experience in running automated, high throughput lab instrumentation (e.g. Agilent Bravo, Tecan Fluent, Integra Assist+)
• Hands-on experience with mammalian cell culture
• Proficient with Microsoft Office applications

Preferred Qualifications:

• Ability to work with biological registration systems (e.g. Genedata Screener, Genedata Biologics)
• Ability to work with large datasets through a variety of methods (e.g. Excel, Spotfire)
• Molecular Biology skills are a plus, as is experience with scheduling software and scripting
• Experience with an integrated high-throughput screening system and scheduling software

Soft Skills:

• Detail-oriented, fastidious, strong skills in organization, time management, and teamwork
• Ability to present findings to diverse scientific groups in a clear and concise manner

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.

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 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, colour, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, ability or gender identity. Watch our [ALL IN video](https://www.youtube.com/watch?v=SkpDBZ-CJKw&t=67s) and check out our Diversity Equity and Inclusion actions at [sanofi.com](https://www.sanofi.com/en/our-responsibility/equality-and-inclusiveness)! 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](https://benefits.sanofiusallwell.com/fleet/public/index/ba511bf8-5c32-4828-9861-ab985fffab90/?cid=sanofi). ### Similar Jobs (5) #### [Senior Principal Scientist](https://sanofi.wd3.myworkdayjobs.com/en-US/SanofiCareers/job/Cambridge-MA/Senior-Principal-Scientist_R2857792) locations Cambridge, MA time type Full time posted on Posted 13 Days Ago time left to apply End Date: October 15, 2026 (30+ days left to apply) #### [Senior Scientist, Systems Biology](https://sanofi.wd3.myworkdayjobs.com/en-US/SanofiCareers/job/Cambridge-MA/Senior-Scientist--Systems-Biology_R2861894) locations Cambridge, MA time type Full time posted on Posted 18 Days Ago time left to apply End Date: October 3, 2026 (30+ days left to apply) View All 5 Jobs ### About Us  We are an R&D driven, AI-powered biopharma company committed to improving people’s lives and creating compelling growth. Our team is guided by one purpose: we chase the miracles of science to improve people’s lives. We want to build a healthier, more resilient world, and turn the impossible into the possible by discovering, developing, and delivering medicines and vaccines for millions of people around the world. Discover more about us visiting [www.sanofi.com](http://www.sanofi.com) or via our movie [We are Sanofi](https://youtu.be/96EwNjb1TLo) Read More ### Why Sanofi Start a career that makes a difference. Reinvention is in our DNA. It’s what drove our evolution from a small French enterprise to one of the world’s leading biopharma companies. Whether it’s using AI to shorten drug-discovery times or building trust in healthcare, you could be helping our teams make life better for patients, partners, and communities. This is where you grow your career. We open the door for you to explore new opportunities, push your limits, and connect with people who are driven by a shared purpose: we chase the miracles of science to improve people’s lives. Read More #### Follow Us * [](https://twitter.com/sanofi "X") * [](https://www.linkedin.com/company/sanofi- "LinkedIn") * [](https://www.youtube.com/user/sanofiaventisTVen/ "YouTube") [Global Terms & Conditions and Data Privacy Statement](https://www.sanofi.com/en/careers/global-terms-and-conditions/ "Global Terms & Conditions and Data Privacy Statement") © 2026 Workday, Inc. All rights reserved.