Fall 2025 Co-Op

About the Job

We are an innovative global healthcare company with one purpose: to chase the miracles of science to improve people’s lives. We’re also a company where you can flourish and grow your career, with countless opportunities to explore, make connections with people, and stretch the limits of what you thought was possible. Ready to get started?

The Genomic Medicine Unit within Sanofi is responsible for the design and optimization of viral vector manufacturing processes and platforms. We chase the miracles of science through exploration of novel technologies to enable better characterization of our next-generation production platforms and to enable high-dose gene therapy programs.

This 6-month position centers on viral vector purification processes but will interface with a broader team of vector and cell line engineering, upstream process development, analytics, and clinical manufacturing support.

A successful candidate in this role will be engaged in actively learning new techniques, independently performing experiments, analyzing and presenting results, and collaborating with different functions to understand the cross-functional nature of decision-making.

Experience in protein characterization, high-throughput, engineering and data analysis, analytical techniques, and/or viral vector purification is preferred. Project topic will be commensurate with level of previous experience.

**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). **

Key Responsibilities:

• Design, execute, and analyze viral vector purification experiments.

• Perform analytical characterization of samples and analyze results.

• Work with cross-functional team for feedback and present findings.

• Contribute to technical reports and/or external publications if appropriate to project topic and level of experience.

About you

Basic Qualifications:

• Currently pursuing a PhD, MS, or BS degree in biological sciences, genetic engineering/ engineering sciences with relevant study experience.

• Must be enrolled in school the semester following your co-op with Sanofi.  

• Must be able to relocate to our Waltham office location and work 40hrs/week for the full duration of the Co-op.

• Must have permanent US work authorization 

• Understanding of cell engineering, molecular biology, virology and immunology concepts.

• Knowledge and understanding of technologies and operations such as:

  • Chromatography, tangential flow filtration, normal flow filtration, and/or viral clearance and inactivation

  • Advanced analytical tools to characterize protein and viral vectors

• Work under minimal supervision and function within a collaborative, team-oriented environment.

• Ability to work in Biosafety Level 2, follow safe lab procedures, and maintain good laboratory practices (GLPs) including detail-oriented laboratory notebook documentation.

Preferred Qualifications:

• Experience with viral vector purification and characterization.

• Experience with SEC-HPLC, DLS, ddPCR/qPCR, Western blot, ELISA, FACS, immunoassays, spectroscopic and bioassay techniques.

• Experience with AKTA automated chromatography instruments, high-throughput liquid handlers, and automated filtration instruments.

• Experience with protein sequences and tools such as NanoSight 3000, Caliper LabChip GXII, Multi-Angle DLS (MADLS), ForteBio Octet, or similar instruments.

• Basic understanding of the principles of Quality by Design and ability to apply DOE to downstream development.

• Excellent communication skills and ability to build cross-functional relationships.

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.

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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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.

At Sanofi, we provide equal opportunities to all regardless of race, colour, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, ability or gender identity.

Watch our ALL IN video and check out our Diversity Equity and Inclusion actions at sanofi.com!

US and Puerto Rico Residents Only

Sanofi Inc. and its U.S. affiliates are Equal Opportunity and Affirmative Action employers committed to a culturally inclusive and diverse workforce. All qualified applicants will receive consideration for employment without regard to race; color; creed; religion; national origin; age; ancestry; nationality; natural or protective hairstyles; 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.