Sanofi

Sanofi

Posted via Workday

2027 Spring Co-op RNA Production

Apply by Nov 2, 2026

Posted Oct 27, 2026

Role at a glance

Job function
Engineering & R&D Biotechnology & Pharmaceutical R&D
Salary
Not yet verified Check the description for pay details; an amount or pay period has not been verified.
Location
Waltham, Massachusetts, United States
Work arrangement
On-site
Employment
Full-time
Education
Currently pursuing a master’s degree in life sciences, molecular biology, biochemistry, biomedical engineering or biotechnology
Visa support
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...

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Role Summary

AI-generated

Six-month co-op on the RNA Production team in Waltham, MA, supporting mRNA production, characterization, and process optimization in a primarily lab-based, on-site role.

What You'll Do

  • Support mRNA production efforts for mRNA drug targets, including batch production, characterization, and optimization of mRNA processes
  • Focus on synthesis and purification of a wide range of mRNA constructs in parallel
  • Provide accurate and reproducible execution of analytical characterization for the full release panel for mRNA drug substance
  • Contribute to the optimization of mRNA sequence design, production, and purification
  • Contribute to platform projects by evaluating and implementing new technologies and optimizing existing workflows
  • Prepare technical reports, presentations, and recommendations for management and other stakeholders

Generated from the employer's posting. Verify important details before applying.

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Qualifications

Enrolled master's student in a life sciences or biotech field, graduating by Spring 2027 (or 2028), permanently authorized to work in the U.S. without sponsorship, and able to work on site 40 hours per week.

Required

  • Currently pursuing a master’s degree in life sciences, molecular biology, biochemistry, biomedical engineering or biotechnology with...
  • Must be permanently authorized to work in the U.S. and not require sponsorship of an employment visa at the time of application or in...
  • Must be enrolled in an accredited college or university throughout the duration of the co-op/internship
  • Must be able to relocate to the office location and work 40 hours/week, Monday to Friday, for the full duration of the co-op/internship

Preferred

  • Desire to work in a team-first, fast-paced environment, learn new skills, and efficiently solve problems
  • Experience in nucleic acid synthesis/handling (RNase-Free)/application with hands-on experience in messenger RNA production/characterization
  • Hands-on experience in capillary and gel electrophoresis
  • Hands-on experience in analytical and molecular biology methods relevant to mRNA
  • Attention to detail and meticulous record keeping
  • Manages time effectively and demonstrates ability to manage multiple projects at one time

Original job description

Content provided by the employer

Job Title: 2027 Spring Co-op RNA Production

  • 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. We are seeking a highly motivated Spring Co-op to join our RNA Production team.

Ready to grow your skills while helping shape the future of healthcare? At Sanofi, you’ll be empowered to Early Careers 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

  • Support mRNA production efforts for mRNA drug targets entailing batch production, characterization, optimization of mRNA processes.

  • Focus on synthesis and purification of a wide range of mRNA constructs in parallel for fast progression of programs.

  • Provide accurate and reproducible execution of analytical characterization for full release panel for mRNA drug substance.

  • Contribute to the optimization of mRNA sequence design, production, and purification.

  • Contribute to platform projects by evaluating and implementing new technologies and optimizing existing workflows.

  • Prepare technical reports, presentations, and recommendations to management and other stakeholders.

  • This will be primarily a lab-based position.

 

About You

 Basic Qualifications:

  • Currently pursuing a master’s degree in life sciences, molecular biology, biochemistry, biomedical engineering or biotechnology with plans to graduate by Spring 2027 (or 2028)

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

Preferred Qualifications:

  • Desire to work in a team-first, fast-paced environment, learn new skills, and to efficiently solve problems.

  • Experience in nucleic acid synthesis/handling (RNase-Free)/application with hands-on experience in messenger RNA production/characterization.

  • Hands on experience in capillary and gel electrophoresis is an asset.

  • Hands on experience in analytical and molecular biology methods relevant to mRNA is an asset.

  • Attention to detail and meticulous record keeping.

  • Manages time effectively demonstrating ability to manage multiple projects at one time.

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 $35.00 -$47.00 hourly. All compensation will be determined commensurate with demonstrated experience.

#LI-Onsite 

#vhd 

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.

Sanofi US endeavours to make our career center accessible to any and all users. If you are experiencing difficulty and need assistance applying online, please call 1-866-SANOFI2 (1-866-726-6342) or click here



US and Puerto Rico Residents Only

Sanofi Inc. and its U.S. affiliates are Equal Opportunity employers committed to a culturally inclusive 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.

Sanofi

About the company

Sanofi

Large Enterprise

Sanofi is a global healthcare leader committed to promoting health and well-being through the development of innovative medicines, vaccines, and therapeutic solutions. With a diverse portfolio that spans multiple therapeutic areas, including diabetes, oncology, and immunology, Sanofi is dedicated to addressing pressing health challenges and improving patient outcomes worldwide. Headquartered in France, the company employs over 100,000 individuals across more than 100 countries, fostering a culture of collaboration and scientific excellence to drive advancements in healthcare.