Associate Scientist

Sanofi; Waltham, Northern (MA, KY); Hybrid; USD 75,000 - 108,000; Full time

Job summary

Sanofi seeks an Associate Scientist in Waltham, MA to support the Drug Product Platform and Early Clinical Development Team. The role focuses on foundational expertise in formulation and/or process development, with growing laboratory skills and a hands-on approach to LNP formulation development.

You will collaborate with senior scientists, transfer formulations to CMC development, perform small-scale experiments, and help prepare development packages while learning in a dynamic R&D setting.

Qualifications

• Bachelor’s degree in Pharmaceutical Sciences, Chemistry, Chemical Engineering, Biomedical Engineering, or related field.
• Minimum of 2 years of experience in formulation, process development, or laboratory research (internship or academic experience considered).
• Preferred: Master’s degree and experience in pharmaceutical/biotechnology formulation and/or process development.
• Familiarity with LNP production processes or analytical characterization techniques is a plus.

Responsibilities

• Support formulation optimization and/or process understanding of mRNA-containing LNP formulation and production processes under guidance from senior scientists.
• Assist in transferring and accelerating new LNP formulations into CMC development.
• Conduct small-scale multi-component LNP formulation experiments to support developability assessment.
• Contribute to Developability packages for new LNP formulations.
• Assist in developing initial formulation processes for new LNP formulations.
• Perform in-process drug product characterization under supervision and analyze data.
• Support coordination with Analytical Sciences on LNP characterization analysis.
• Assist in troubleshooting technical, formulation, and processing issues.
• Document development study setup, results, and conclusions in an electronic notebook.
• Tabulate and analyze in-process and post-process characterization data.
• Contribute to summaries and presentations of study progress in team meetings.
• Assist in installing new characterization and process equipment in new labs.

Skills

Formulation development

Process development

Laboratory research

Team collaboration

Education

Bachelor's degree in Pharmaceutical Sciences/Chemistry/Engineering

Master's degree in a relevant field

Tools

Electronic Lab Notebook (ELN)

Job description

Associate Scientist Location: Waltham, MA

About the Job

The incumbent will provide support to the Drug Product Platform and Early Clinical Development Team in Waltham, MA, reporting to the DP Group Lead. This role is suited for an individual building foundational expertise in formulation and/or process development, with developing laboratory skills and a growing scientific understanding of LNP formulation development. The successful candidate will work collaboratively within the team, learning from experienced scientists while contributing meaningfully to ongoing projects.

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.

Main Responsibilities

• Support the formulation optimization and/or process understanding of mRNA-containing lipid nanoparticle (LNP) formulation and production processes under guidance from senior scientists
• Assist the Research team in transferring and accelerating new LNP composition formulations into CMC development
• Conduct small-scale multi-component LNP formulating experiments to support the developability assessment of new LNP formulations
• Contribute to the compilation of Developability packages for new LNP formulations
• Assist in developing initial formulation processes for new LNP formulations.
• Perform in-process drug product characterization under supervision.
• Perform routine and some complex analytical methods to characterize new formulations and support troubleshooting as needed.
• Support coordination with the Analytical Sciences department on LNP characterization analysis.
• Assist the Drug Product team in troubleshooting technical, formulation, and processing issues.
• Document development study set-up, results, and conclusions within an electronic lab notebook.
• Tabulate and assist in analyzing in-process and post-process characterization data.
• Contribute to the summary and presentation of study progress and generated data in team meetings.
• Assist in setting up and installing new characterization and process equipment in new laboratories.

About you

Basic Requirements Bachelor's degree in Pharmaceutical Sciences, Chemistry, Chemical Engineering, Biomedical Engineering, or a related scientific discipline. Minimum of 2 years of experience in formulation, process development, or laboratory research (internship or academic laboratory experience will be considered).

Preferred Qualifications Master's degree in a relevant scientific discipline. Prior professional experience in formulation and/or process development in a pharmaceutical or biotechnology environment. Familiarity with LNP production processes or analytical characterization techniques. Experience with electronic lab notebook systems.

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. Work at the forefront of AI-driven research, smart manufacturing, and groundbreaking mRNA platforms that are redefining the future of immunology. Help protect half a billion people every year, contributing to one of the largest global vaccination efforts in healthcare. Develop your career with access to mentoring, international mobility programs, and opportunities to grow across four continents. Sanofi Inc. and its U.S. affiliates are Equal Opportunity and Affinitive 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 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. Sanofi US endeavours to make our career center accessible to any and all users.

US and Puerto Rico Residents Only

Sanofi Inc. and its U.S. affiliates are Equal Opportunity employers committed to a culturally inclusive 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.

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, and additional benefits information can be found here.

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 or via our movie We are 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.