
R&D
Where your curiosity drives the
miracles of
science
Analytical Principal Scientist (Analytical team lead)
At a glance
Bring your curiosity to a team where deep immunoscience meets cutting-edge innovation. Across oncology, rare diseases, neurology, and vaccines, you’ll work at the intersection of lab science and AI-powered discovery — all while collaborating across boundaries to turn breakthrough ideas into real-world impact. Whether you want to deepen your scientific expertise or grow as a leader, you’ll find the opportunity here.
Job Title: Analytical Principal Scientist (Analytical team lead)
Location: Cambridge, MA
About the Job
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 individual to join our analytical group as a principal scientist. The group is part of the synthetic platform within Global CMC Development with focus on small molecules that is striving to become an industry leader in the development of transformative medicines.
The primary responsibility of this position is to provide and coordinate analytical support to the chemistry teams and to ensure the timely completion of analytical deliverables. This position is onsite and is based in Cambridge, Massachusetts, USA.
We are an innovative global healthcare company with one purpose: to chase the miracles of science to improve people’s lives. We’re also a company where you can flourish and grow your career, with countless opportunities to explore, make connections with people, and stretch the limits of what you thought was possible. Ready to get started?
Main Responsibilities
Working with project team members and other scientists to develop analytical strategies that meet the evolving needs of projects
Develop specific and robust analytical methods mainly on small molecules using equipment including HPLC, UHPLC, GC, and be responsible for validating the methods when necessary
Coordinate the analytical work for projects this role is responsible for
Ensure the appropriate allocation of resources on projects in accordance with the priority of the projects and studies
Represent the analytical group in late development CMC projects
Ensure timely completion of analytical deliverables (e.g., draggability assessment, specifications, stability program, reference substances, etc.)
Author or review analytical development technical reports
Ensure good communication and cooperation among different functional groups, including CMC Dossier, Regulatory CMC, Research Platform, and Manufacturing
Promote networking with internal or external scientific partners including subcontractors
About You
Basic Qualifications
A Master’s degree or equivalent in Analytical Chemistry or related field with a minimum of 8 years, or a PhD with minimum of 5 years of experience in the pharmaceutical/biotech industry. A PhD in Analytical Chemistry is preferred.
Extensive experience in analytical method development and validation
Ability to operate independently and to prioritize
Familiarity with cGMP and regulatory requirements on analytical methods
Prior CMC project management experience
Excellent communications skills
Preferred Qualifications
Ability to propose course of action and to provide strong advocacy in CMC team meetings
Having a record of success in CMC project management
Having working knowledge of synthetic chemistry and pharmaceutical development
Consistent record of collaboration with scientists and other stakeholders at external enterprises
Advanced scientific network in the industry and academia
Record of patents and publications
Record of adhering to and promoting lab safety practices
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.
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.
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All compensation will be determined commensurate with demonstrated experience. Employees may be eligible to participate in Company employee benefit programs, and additional benefits information can be found here.
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Pursue Progress. Discover Extraordinary.
Join Sanofi and step into a new era of science - where your growth can be just as transformative as the work we do. We invest in you to reach further, think faster, and do what’s never-been-done-before. You’ll help push boundaries, challenge convention, and build smarter solutions that reach the communities we serve. Ready to chase the miracles of science and improve people’s lives? Let’s Pursue Progress and Discover Extraordinary – together.
At Sanofi, we provide equal opportunities to all regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, protected veteran status or other characteristics protected by law.
Watch 'One day at Sanofi' and check out our Diversity Equity and Inclusion initiatives at sanofi.com
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Why work with us
- Expand your horizons. Grow through curiosity, with support to move, learn, and lead in a culture that champions mentorship, mobility, and bold development.
- Accelerate results with technology. Harness the power of AI and automation to push scientific boundaries and reimagine what's possible in drug discovery.
- Impact through inclusive innovation. Help deliver better science and fairer outcomes by driving inclusive research that reaches more people, in more meaningful ways.
- Turn patient needs into breakthrough science. Drive scientific breakthroughs that start with patient needs – and end in treatments that change lives.
Meet Nils Libert, Associate Scientist
Meet Nils Libert, an Associate Scientist in Belgium, where he plays a key role in advancing groundbreaking research. Learn how his work helps drive innovation, uncover new scientific possibilities, and contribute to life-changing treatments that impact patients around the world.

"At Sanofi, we are building an R&D engine powered by the best science, digital innovation, and a commitment to transforming the lives of patients around the world."

Houman Ashrafian
EVP & Head of R&D
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