Job Title: 2027 Spring Co-op Chemistry R&B

• 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 motivated and detail-oriented Spring Co-op/Intern to join our Chemistry R&B team.

This is a full-time, onsite position offering a unique opportunity to contribute to cutting-edge research in synthetic organic and nucleic acid chemistry within a world-class pharmaceutical environment. The successful candidate will work alongside experienced scientists to support the development and advancement of innovative therapeutic modalities, directly aligned with Sanofi's mission to chase the miracles of science. This co-op placement is designed to provide meaningful, hands-on laboratory experience while fostering scientific growth, professional development, and cross-functional collaboration.

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

• Perform synthesis, purification, and characterization of oligonucleotides and/or small molecule compounds in support of ongoing research programs.

• Operate and maintain solid-phase oligonucleotide synthesizers and related instrumentation.

• Execute ion exchange column chromatography for purification of nucleic acid-based compounds.

• Conduct LCMS analysis to assess purity, identity, and quality of synthesized materials.

• Accurately record experimental data, maintain detailed laboratory notebooks, and ensure data integrity in compliance with Sanofi's quality standards.

• Analyze and interpret experimental results, troubleshoot issues, and propose solutions in collaboration with senior scientists.

• Prepare clear and concise written summaries, experimental reports, and presentations to communicate scientific findings to the team.

• Participate actively in team meetings, scientific discussions, and project reviews.

• Adhere to all laboratory safety protocols, SOPs, and regulatory guidelines.

About You

Basic Qualifications:

• Currently enrolled in a Bachelor of Science (BS) or Master of Science (MS) program in Chemistry, Biochemistry, Chemical Biology, or a closely related discipline.

• 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:

• Solid foundational knowledge of organic chemistry and/or biochemistry principles.

• Strong attention to detail, organizational skills, and ability to manage multiple tasks in a fast-paced research environment.

• Prior laboratory experience in synthetic organic chemistry and/or nucleic acid chemistry.

• Hands-on experience operating solid-phase oligonucleotide synthesizers, including any of the following platforms: MM192, MM/12/ Dr. Oligo/ ÄKTA Oligopilot 100 (OP100).

• Practical experience with ion exchange column chromatography for oligonucleotide purification.

• Proficiency in LCMS (Liquid Chromatography-Mass Spectrometry) analysis and data interpretation.

• Strong scientific writing and communication skills, including the ability to prepare technical reports, summaries, and presentations

• Demonstrated ability to work both independently and collaboratively within a multidisciplinary team.

• Familiarity with laboratory data management systems and electronic lab notebooks (ELNs).

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

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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.

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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.