Les vaccins
Là où des
esprits extraordinaires
protègent un
demi-milliard de personnes

Job Title: mRNA Analytical Science Bioassay - Fall 2025 Co-op

As a mRNA Co-op Student in Analytical Sciences, you will participate in analytical development activities to support development and 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:

• Perform mRNA vaccine analytical testing in the lab, data analysis, and related document writing with a critical look at the relevance of the results. 

• Perform sample preparation following existing SOPs or analytical procedures.

• Perform Western blot development, optimization, qualification, and testing.

• Perform mammalian cell culture and transfections. 

• Perform ELISA development, optimization, and testing

• Perform Flow cytometry and ddPCR testing

• Perform 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 laboratory organization activities (orders, management/maintenance of equipment, reception & verification of reagents and receipt of samples).

• Compliant to Sanofi Quality standards and HSE policy. Participate in continuous improvement of laboratory safety and quality compliance.

About You:
Basic qualifications:

• Currently pursuing a bachelor’s or master’s degree in engineering, Biology, Biotechnology, health sciences, or other STEM related field at an accredited college or university with the expectation that you will complete your current degree by the Spring of 2027

• Must be enrolled in school the semester following your internship with Sanofi

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

• Must have permanent US work authorization

Preferred Qualifications:

• BS degree with 0-2 years of professional experience in the vaccine or pharmaceutical industry in the field of R&D, QC analytics.

• Interest in digital transformation and automation.

• Good professional writing 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.   

• Adherence to Quality and HSE aspects.

Why Choose Us:

The salary range for this position is ​$27-$35 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.​

**At this time, Sanofi will not sponsor a new applicant for employment authorization or offer any immigration related support for this position (i.e. H1B, F-1 OPT, F-1 STEM OPT, F-1 CPT, J-1, TN, or another type of work authorization). **

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.

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