internship 6 months analytical development in biochemistry and biophysics
About this opportunity
Job title: internship 6 months analytical development in biochemistry and biophysics
Location: Marcy l’Etoile
Starting date: February 2027
About the job
As Analytical Development in Biochemistry and Biophysics intern within our Analytical Sciences department, you’ll be involved in the development of analytical methods to characterize drug substance and drug product. Ready to get started?
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:
Take part in developing and optimizing analytical methods in biochemistry and biophysics to characterize drug substance and drug product, in support of new vaccine development
Support the execution of laboratory analyses and experiments according to defined protocols, ensuring accuracy, reproducibility, and compliance with quality standards
Contribute to the analysis, interpretation, and exploitation of experimental data, drawing relevant scientific conclusions to support decision-making within the project
Collaborate with the Analytical Sciences team to write clear, concise reports and present results effectively
About you
Soft and technical skills: curious, proactive and autonomous. Skills in analytical methods, biophysical characterization and HPLC
Education: Bac+4/5 in chemistry or biochemistry
Languages: english fluent
Why choose us?
Launch your career with a company that invests in you, and empowers you to reimagine what’s possible.
Build your future with access to the latest tools, digital innovation, and continuous learning that keep you ahead of the curve.
Grow in a purpose-driven company where your voice matters and your work helps improve millions of lives.
Thrive in inclusive, flexible workplaces that support your personal and professional well-being.
An attractive internship bonus.
Depending on your location, access to a company restaurant with a contribution from Sanofi.
Our recruitment process is designed to be fast and efficient. If your application is accepted, you will receive a call from our recruiter for an initial telephone interview, followed by a quick meeting with the manager.
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.
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 !
Job details
How this role compares
Computed from every other active Manufacturing & CMC role in our database, not just this employer's listings.
We currently track 356 comparable Intern/Fellow/Postdoc Manufacturing & CMC roles across 56 biopharma companies.
Salary context
77 of 356 peers report a salary range (USD, annualized)
Peers share this role's job function and a matching or adjacent seniority level -- not necessarily the same therapeutic area or country.
Where these roles are based
Top locations among the 356 comparable roles
+ 19 more countries
Seniority mix
356 of 356 peers have a known seniority level
Therapeutic area mix
6 of 356 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden
Similar opportunities
The closest matches from our peer group, ranked by how similar they are, not how well you'd qualify for them -- treat this as market context, not a guaranteed shortlist; a weak match is labeled as one below.
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How we calculate "similar"
No black box, no LLM guesswork: a deterministic score built from four normalized attributes. Here's this role's own peer group at different match levels, so you can see the mechanism, not just the result.
Every comparison starts from the same 100-point budget: 25 for working in the same function, 40 for the same therapeutic area, 20 for the same or adjacent seniority, 15 for the same country. A dimension we can't confirm on both sides contributes nothing, never a guess, never a free pass.
0 points, never a partial guess. A role we know almost nothing about beyond its function bottoms out at 25%; it never inflates to 100% just because there's little to compare against. Seniority uses a defined ladder (Associate → Manager → Associate Director → Senior → Principal → Director → Senior Director → Executive/VP) so "Director" and "Senior Director" count as adjacent, but "Director" and "Executive/VP" do not.