INTERNSHIP DETAILS

Seppic - Stage - Ingénieur.e immunologie / vaccinologie

CompanyAir Liquide
LocationCastres
Work ModeOn Site
PostedOctober 20, 2026
Internship Information
Core Responsibilities
Develop in vitro evaluation models for the immunological properties of genetic vaccine adjuvants. Conduct studies on the protection and integrity of genetic material within cellular environments.
Internship Type
full time
Company Size
40542
Visa Sponsorship
No
Language
English
Working Hours
40 hours
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About The Company
Oxygen, nitrogen, hydrogen, and many other essential small molecules are the invisible pillars of our world and our lives. They have been at the core of the Group’s activities since its creation in 1902. A world leader in gases, technologies and services for industry and healthcare, Air Liquide acts as the backbone of numerous economic sectors, serving 4.3 million customers and patients across 59 countries with approximately 65,000 employees. With revenues close to 27 billion euros in 2025, Air Liquide combines strong performance and useful growth. The Group is a leader with a diversified, resilient business model and a strong local footprint across the globe. Through deep engineering expertise and technological innovation, Air Liquide provides scalable solutions that enhance industrial efficiency, accelerate decarbonization, and strengthen value chains. Strategically exposed to growth markets and megatrends, the Group accompanies major industrial and societal transformations to create long term added value and build a sustainable future. Air Liquide is listed on the Euronext Paris stock exchange (compartment A) and belongs to the CAC 40, CAC 40 ESG, EURO STOXX 50, FTSE4Good, and Dow Jones Best-in-Class Europe Index indexes.
About the Role

An Air Liquide Healthcare company, subsidiary of the Air Liquide group, Seppic (www.seppic.com) has been designing, manufacturing, and marketing unique ingredients for cosmetic, pharmaceutical, nutraceutical and veterinary products since 80 years. These ingredients are used by consumers, patients, and professionals. Seppic combines multiple expertises in the fields of polymers, surfactants and emulsion technologies, active ingredients, biology, immunology, formulation, green chemistry, extraction and biotechnologies.

Combining the dynamism of an international company on a human scale with the solidity of a large group, Seppic is grooming a team of nearly 880 talented men and women around the world who are passionate about what they do every day and serve customers for health, well-being, and beauty of all.

Joining Seppic means notably :

- Following a complete integration process: personalized onboarding, presentations of activities (CSR, marketing, operations, sales, ...), mentoring, close HR follow-up, discovery report, ...

- Be part of a multicultural company where many different jobs and solid expertise are combined, allowing for professional growth and offering great career opportunities in France and abroad.


 

How will you CONTRIBUTE and GROW?


 

- Mettre au point des modèles d'évaluation in vitro des propriétés immunologiques des adjuvants pour vaccins génétiques (ADN/ARNm).

- Développer une étude autour de la protection du matériel génétique et de son intégrité/ expression en milieu cellulaire, dans le cadre de la vaccination


 

Le mot du tuteur : "Cette offre de stage s’inscrit dans le cadre d’un projet ambitieux porté par une équipe dynamique et passionnée. Donnez du sens à votre stage : participez activement à notre projet. Postulez !"


 

Are you a MATCH?


 

Profil et compétences : 


  • Vous êtes en Master 2 avec des compétences en biologie moléculaire, immunologie / vaccinologie et en culture cellulaire.
  • La cytométrie en flux serait un plus. 
  • Français et Anglais maîtrisés


Vos atouts : 

  • Vous êtes force de proposition, proactif, rigoureux et autonome.
  • Vous faites preuve de curiosité et avez un attrait pour l’innovation et le développement de méthodes.
  • Vous savez travailler en équipe.


Informations complémentaires : 

  • Localisation : Castres
  • Durée du stage : 6 mois
  • Date de démarrage souhaité : Janvier ou Février 2027 


 

Our Differences make our Performance

At Air Liquide, we are committed to build a diverse and inclusive workplace that embraces the diversity of our employees, our customers, patients, community stakeholders and cultures across the world.

We welcome and consider applications from all qualified applicants, regardless of their background. We strongly believe a diverse organization opens up opportunities for people to express their talent, both individually and collectively and it helps foster our ability to innovate by living our fundamentals, acting for our success and creating an engaging environment in a changing world.

Key Skills
Molecular biologyImmunologyVaccinologyCell cultureFlow cytometryIn vitro testingGenetic material protectionInnovationMethod developmentTeamworkProactivityAutonomy
Categories
Science & ResearchHealthcareEngineering
Benefits
MentoringOnboarding processProfessional growth opportunities