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mRNA -Sr. Principal Scientist, mRNA Synthesis Expert - Vaccine



Waltham, MA, USA
Posted on Friday, August 18, 2023

mRNA -Sr. Principal Scientist, mRNA Synthesis Expert - Vaccine

Waltham, Massachusetts


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Sr. Principal Scientist, mRNA Synthesis Expert, L3-2

Primary location – Waltham, MA

In the race for the future of health– The Sanofi mRNA Center of Excellence (CoE)

At Sanofi, we chase the miracles of science, and we know mRNA has a role to play in the future of health. And while the pandemic has shaken up our industry, creating new opportunities and risks, we believe the acceleration of innovation with mRNA technology means vaccines and treatments for more people faster than before.

That’s why we’re looking for bold, optimistic world-changers to join our mRNA Center of Excellence. We’re investing 400m a year into the new Center, hiring a team of 450 dedicated employees, and focusing on implementing an integrated end-to-end mRNA vaccine capabilities and research with R&D, digital and CMC teams.

Bring your ambition and optimism and join us on our journey to discover and deliver transformative medicine to patients through the advancement of our cutting-edge mRNA technology!

About the Opportunity

As highly experienced IVT Expert in the Global DS Development team, you will support global mRNA strategy, process development, and innovation from early stage to commercial programs to:

  • ensure robustness and economics of IVT reaction processes

  • drive next generation IVT process development & support key strategic innovation initiatives

  • lead IVT reaction process control strategy


About growing with us for winning with us

In this role you will….

  • Provide strategic direction to all process development teams developing mRNA reaction processes to ensure scalable platform is established

  • Work transversally and proactively to make impactful contributions on R&D goals beyond group utilizing matrix management

  • Ensure the creation, evolution, and implementation of robust Process Control Strategy for reaction processes utilizing QbD framework and qualified scale down models

  • Advise on all aspects of IVT reactions, including purity improvements in synthesis, yield optimization, process robustness, PAT, scale-up, eco-design, and continuous manufacturing

  • Responsible for applying scientific expertise and judgement to initiate, design, direct and execute experiments and/or studies in support of development project goals, including guidance on experimental design utilizing DOE

  • Partner with mRNA Research and Data Science team to develop mechanistic and hybrid models to support efficient experimentation for process understanding and improvement

  • Partner with mRNA Science and Analytical Science team to identify mRNA related attributes and appropriate characterization methods to enable mRNA reaction performance characterization and improvements.

  • May lead technical project team with cross functional members

  • Participates in major troubleshooting task forces for complex deviations related to IVT and propose corrective actions

  • Has a growing reputation in the external scientific community based on productive scientific collaborations and active participation in conferences

  • Support Intellectual Property objectives related to mRNA synthesis

  • Supports CMC teams in preparing and/or reviewing dossier and responses to follow-up questions to post-approval change submissions

  • Provides technical mentorship to upcoming talent in network and knowledge management/transfer

  • Work globally with groups and colleagues in the United States and France

  • May participate as technical expert in business development due diligence supporting activities


About you

Qualifications/Education & Work Experience

  • Molecular biology, biochemistry, engineering or related degree; PhD > 7+ years, MS and > 13y; BS and > 15 y

  • Expertise in mRNA IVT reactions, including enzymatica capping and enzymatic tailing reactions

  • Understanding enzymology and various modes of reactor design (batch, fed-batch, continuous) preferred)

  • Understanding of complex R&D landscapes globally, ability to identify cutting-edge technologies and new directions, strong academic and biotech/pharma scientific networks

  • Experience with QbD approach in drug substance development and industrialization strongly preferred

  • Desire to work in a fast-paced environment

  • Good oral communication, management, and interpersonal skills.

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.



At Sanofi diversity and inclusion is foundational to how we operate and embedded in our Core Values. We recognize to truly tap into the richness diversity brings we must lead with inclusion and have a workplace where those differences can thrive and be leveraged to empower the lives of our colleagues, patients and customers. We respect and celebrate the diversity of our people, their backgrounds and experiences and provide equal opportunity for all.


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