R&D
Where your curiosity drives the
miracles of
science

Le contenu du poste est libellé en anglais car il nécessite de nombreuses interactions avec nos filiales à l'international, l'anglais étant la langue de travail.

The job posting is in English given the significant interactions required with our global subsidiaries, for which English is the working language.

Job title: Scientist Organic Chemist, Process Chemistry

• Location: Montpellier

About the job

As a bench-level Organic Chemist within our Commercial Process Development team, you'll lead the design and optimization of cutting-edge synthetic routes and process chemistry strategies to accelerate pharmaceutical manufacturing at Sanofi. From developing innovative synthetic pathways to ensuring safe and successful scale-up from laboratory to pilot plant, your expertise will directly shape the future of life-changing medicine development at Sanofi. Ready to take on the challenge?

Join our Montpellier R&D site , one of Sanofi's most dynamic hubs for pharmaceutical innovation. As part of a multicultural and forward-thinking team, you'll drive high-impact process chemistry projects, collaborate with cross-functional teams across Chemistry and Manufacturing networks, and lead the optimization of synthetic routes throughout our development pipeline. Whether it's conducting rapid reaction screening, designing DoE experiments, or mentoring junior scientists, you'll be at the heart of Sanofi's mission to chase the miracles of science — with real career growth opportunities in a collaborative and innovative environment.

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:

• Design, develop, and optimize synthetic routes for active pharmaceutical ingredients (APIs) using the right technology to allow smooth and rapid scale-up to pilot-scale operations
• Plan and conduct organic synthesis experiments and chemical reactions in the laboratory, with proficiency in analytical characterization techniques
• Support technology transfer to manufacturing sites and troubleshoot technical issues at the interface of chemistry and manufacturing
• Serve as the primary technical contact within the team, anticipating challenges and implementing proactive measures
• Mentor junior scientists and offer technical leadership and guidance to the team
• Document all experimental work in digital lab notebooks and compile findings into comprehensive technical reports
• Oversee the proper maintenance and operational readiness of specific scientific equipment
• Communicate complex technical information clearly and effectively to multidisciplinary audiences and stakeholders

Whatweofferyou:

CompetitivecompensationpackageFixedsalaryover12months,complement

byindividualvariablecompensationplusprofit-sharingbasedonSanofiGroupresults.

Comprehensivebenefitsbecausecaringforouremployeesisalsoourmission31daysofpaidvacation+additionaltimeoffaccordingtoyourstatus,remoteworkupto2daysperweek,qualityhealthinsurance,publictransportationcoverageupto80%;extendedmaternityleave(18weeks)andchildwelcomeleave(14weeks),SavingsPlan&RetirementPlanswithcompanymatching,employeecommitteebenefits,internalandinternationalmobilityopportunities,personalizedtrainingprogramstosupportyouthroughoutyourcareer,andmanyotherbenefitstodiscover here.

About you

• Experience: Proven experience in synthetic organic chemistry and process development. Demonstrated ability to translate laboratory processes to pilot/industrial scale. Experienced in working on different types of chemical modalities i.e. small molecules, peptides, lipids.
• Soft and technical skills:

• Organic Chemistry & Synthesis: designing and executing synthetic routes, understanding reaction mechanisms, troubleshooting chemical processes
• Analytical Skills: chemical analysis techniques, chromatography (HPLC, GC), spectroscopy (NMR, MS, IR), data interpretation
• Strong data management and analysis skills
• Technical Problem-Solving: process troubleshooting, root cause analysis, risk assessment, solution development
• Experience with digital lab notebooks, or reaction databases
• Excellent communication and teamwork skills; ability to thrive in a fast-paced, multidisciplinary environment
• Education: MSc in Organic Chemistry, Process Chemistry, or related field, with a strong academic record and proven expertise in synthetic organic chemistry

• Languages:  English and French, both fluent

Why choose us?

• Drive innovation at the intersection of chemistry, digital science, robotics and scale-up
• Accelerate the path from discovery to clinic for life-changing medicines
• Collaborate with leading scientists, engineers, and digital experts
• Access to state-of-the-art AI, automation, and robotics platforms
• Accelerate your professional development with structured career paths designed for both scientific and leadership advancement. Grow in ways you never imagined through bold moves that stretch your potential, cross moves into other business areas, and short-term gigs that build your scientific expertise
• Join a workplace where diversity, equity, and inclusion are at the core, with Employee Resource Groups and leadership programs that celebrate every voice
• Achieve genuine work-life balance in a supportive R&D environment
• Enjoy outstanding benefits, including flexible working options, comprehensive healthcare, and well-being programs designed to help you thrive

PursueProgress. Discover Extraordinary.

Join Sanofi and step into a new era of science - where your growth can be just as transformative as the work we do. We invest in you to reach further, think faster, and do what’s never-been-done-before. You’ll help push boundaries, challenge convention, and build smarter solutions that reach the communities we serve. Ready to chase the miracles of science and improve people’s lives? Let’s Pursue Progress and Discover Extraordinary – together.

At Sanofi, we provide equal opportunities to all regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, protected veteran status or other characteristics protected by law. 

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Pursue Progress. Discover Extraordinary.

Join Sanofi and step into a new era of science - where your growth can be just as transformative as the work we do. We invest in you to reach further, think faster, and do what’s never-been-done-before. You’ll help push boundaries, challenge convention, and build smarter solutions that reach the communities we serve. Ready to chase the miracles of science and improve people’s lives? Let’s Pursue Progress and Discover Extraordinary – together.

At Sanofi, we provide equal opportunities to all regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, protected veteran status or other characteristics protected by law.

Watch 'One day at Sanofi' and check out our Diversity Equity and Inclusion initiatives at sanofi.com