Vaccines
Where
extraordinary minds
help protect  half a billion people

Job Title:2027 Spring Co-op Chemistry Lipid-Protein Conjugation for Targeted LNPs

• Grade:Co-op
• Location:Waltham, MA
• Duration:6 months

About the Job

Looking to launch your career at the cutting edge of healthcare? Join Sanofi for a chance to develop with mentoring and guidance from inspirational leaders while helping to make an impact on the lives of countless people worldwide. As Spring Co-op in our Biologics Drug Product Development Group, you’ll support the Chemistry team in advancing lipid-protein conjugation strategies for the development of targeted lipid nanoparticles (LNPs) for mRNA delivery. The student will work closely with scientists to design, synthesize, purify and characterize novel Lipid-Protein Conjugation for Targeted LNPs with surface-functionalized proteins to enable cell- and tissue-specific mRNA delivery.

Ready to grow your skills while helping shape the future of healthcare? At Sanofi, you’ll be empowered to learn, ask questions, and bring your ideas to life – all while supported by inspiring mentors and collaborative teams.

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

• Synthesize and purify the lipid-protein conjugates using bioconjugation chemistries (e.g., NHS ester, maleimide, click chemistry).
• Purify synthesized conjugates with dialysis or prep HPLC.
• Characterize the synthesized conjugates with HRMS, NMR, LCMS  
• Submit for in vitro/in vivo assays to assess targeting efficiency and mRNA expression.
• Maintain accurate lab notebooks and contribute to internal reports and team presentations.
• Collaborate with formulation, analytical, and discovery biology teams.
• Generate IP through novel protein conjugate designs.

About You

Basic Qualifications:

• Pursuing a bachelor’s master’s or PhD degree in chemistry, biochemistry, biomedical, chemical engineering, life sciences or related field with plans to graduate by Spring 2027 (or 2028, 2029)
• Must be permanently authorized to work in the U.S. and not require sponsorship of an employment visa (e.g., H-1B or green card) at the time of application or in the future. Students currently on CPT, OPT, or STEM OPT usually require future sponsorship for long term employment and do not meet the Internal requirements for this program unless eligible for an alternative long-term status that does not require company sponsorship.
• Must be enrolled in an accredited college or university throughout the duration of the co-op/internship. 
• Must be able to relocate

Preferred Qualifications:

• Hands-on experience in organic/bioconjugation chemistry or nanomedicine.
• Knowledge of mRNA biology or nucleic acid therapeutics.
• Strong communication and teamwork skills.

Why Choose Us

• Bring the miracles of science to life alongside a supportive, future focused team.​
• Stretch your skills through apprenticeships, internships, graduate programs, and international experiences that grow with you.​
• Learn from inspiring mentors and collaborative teams while contributing to real projects that shape the future of healthcare.​
• Build your future with access to the latest tools, digital innovation, and continuous learning that keep you ahead of the curve.​​

Compensation

The salary range for this position is $27.00 - $60.00 hourly. All compensation will be determined commensurate with demonstrated experience.

#LI-Onsite 

#vhd 

null

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.