Senior Associate Scientist- Vaccines

Sanofi (US)
Waltham, MA
Job Title: Senior Associate Scientist- Vaccines

Location: Waltham, MA

About the Job

At Sanofi, we believe in a world in which no one suffers or dies from vaccine-preventable diseases. The pandemic has sustainably transformed our industry, creating new opportunities and challenges. At Sanofi, we are convinced that accelerating the innovation of mRNA technology means better vaccine accessibility for all populations, faster than before.

For this reason, we are looking for bold, optimistic collaborators for our new team at the mRNA Center of Excellence. We are investing €400 million in this brand new center, where 400 employees dedicated to this technology work.

This center of excellence is proof of our commitment to the development and acceleration of vaccination and research resources with the R&D, digital and CMC teams.

The future of Sanofi depends on your ambition, your commitment. Join.

As an mRNA Sr. Associate Scientist in Analytical Sciences, you will ensure laboratory activities in support of process development and industrialization and ensure the characterizations of mRNA vaccines in development.

We are an innovative global healthcare company that helps the world stay ahead of infectious diseases by delivering more than 500 million vaccine doses a year. Across different countries, our talented teams are exploring new technologies to protect people and promote healthy communities. We chase the miracles of science every single day, pursuing progress to make a real impact on millions of patients around the world.

Main Responsibilities:

  • Participate in the development of new analytical methods for mRNA products in collaboration with the scientists of the team.
  • Participate in qualification and transferring of analytical methods.
  • Perform analytical testing in the lab, data analysis, and related document writing with a critical look at the relevance of the results.
  • Develop and write work plans/protocols.
  • Summarize and communicate the progress of your work.
  • Participate in laboratory automation to set up high-throughput analyses.
  • Accompany and train newcomers in analytical technologies and methods.
  • Participate in laboratory organization activities (orders, management/maintenance of equipment, reception & verification of reagents and receipt of samples).
  • Participate in or lead analytical working groups.
  • Participate in GMP and non-GMP lab set up and continuous improvement of laboratory safety and quality compliance.
  • Perform GMP sample collection, analysis, and data verification.
  • Compliant in Sanofi Quality standards and HSE policy. Participate in continuous improvement of laboratory safety and quality compliance.

About You

Qualifications
  • BS or MS in Analytical Chemistry, Biochemistry, or Biotechnology or equivalent.
  • BS with 5+ years or MS with 2+ years of professional experience in the vaccine or pharmaceutical industry in the field of Research & Development and Quality Control analytics.
  • 2 years of hands-on experience on physicochemical and biochemical analytical techniques including but not limited to UPLC/HPLC coupled with UV detection, CAD, MS; DLS; DSC, others.).
  • Practical lab experience and data analysis skills of analytical techniques used for the expression test are required, including MS, Flow-Cytometry, ELISA, Western Blot.
  • Proficiency with different analytical software (Empower, Chromeleon, XCalibur, OpenLab) is required.
  • Hands-on experience with lipid analysis and de-formulation is desired.
  • Hands-on experience with assay automation is desired.
  • Hands-on experience performing basic maintenance of high-resolution mass spectrometers is desired.
  • Demonstrated ability to work independently as well as part of a team to complete assignments within defined time constraints.
  • Excellent verbal and written communication skills.
  • Essential qualities include ability to work in a fast paced, matrix environment; agility to respond to urgent requests, and initiative to lead new tasks.
  • Ability to work full time onsite in an analytical lab environment.

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.

#GD-SP
#LI-SP

#LI-Onsite
#vhd

#mRNA

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.
Posted 2025-09-24

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