Winter-Spring 2026 Co-Op - LNP Development - Vaccines

Job Title: Winter-Spring 2026 Co-Op - LNP Development - Vaccines

Location: Waltham, MA

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 a LNP Development Co-op or Intern, you’ll spend your time with us gaining valuable skills, experience and insights. It’s a fantastic opportunity to see next-generation technology up close while working alongside some of the best in the industry. 

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:

• Execution of formulation, process development and stability studies for vaccine programs

• Work with internal and external partners to address formulation, stability and compatibility aspects using established assays efficiently and comprehensively, across a variety of technological platforms and disciplines

• Maintain a strong work ethic and good documentation practices including electronic laboratory notebook maintenance and writing of technical reports and SOPs

• Analyze, compile and present results to internal and cross functional teams comprised of members from multiple groups and stakeholders.

About You

Basic Qualifications:

• Currently enrolled and pursuing a bachelor’s, master’s, or phd in Pharmaceutical Sciences, Chemical Engineering, Biomedical Engineering, Biochemistry, Bioengineering, Biophysics, or a related discipline at an accredited college or university with the expectation that you will complete your current degree by the Spring of 2027

• Must be able to relocate to the office location and work 40hrs/week, Monday-Friday, for the full duration of the co-op/internship

• 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 requirements for this program unless eligible for an alternative long-term status that does not require company sponsorship

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. 

• Exposure to cutting-edge technologies and research methodologies. 

• Networking opportunities within Sanofi and the broader biotech community. 

The salary range for this position is ​$35-$57 hourly​. All compensation will be determined commensurate with demonstrated experience. Employees may be eligible to participate in Company employee benefit programs. Additional benefits information can be found through LINK.

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 lia