6-Month Internship - Full Stack Development - January - March 2026 H/F - L'Oréal Groupe

6-month Internship From January/March 2026 to July/September 2026 Paris area Master 1/2 €1,700 monthly 2 opportunities

One application, two opportunities!

By applying to this internship, you are actually applying to two Full Stack Developer roles within L'Oréal Beauty Tech. During the recruitment process, your recruiter will help you identify which one fits you best.
Our mission: Offering you an amazing, personalized experience inside our Tech entity. A real kick-start for your career!
Didn't imagine L'Oréal as an amazing Tech Company? Wait a minute.

At L'Oréal, Tech is not a support function, it's at the core of our transformation. Beauty Tech is a global community of more than 9,000 collaborators driving the future of beauty through three main scopes: Data, Tech & Digital.

With over 200 impactful projects currently shaping our strategy, our goal is clear: remain the world leader in beauty by becoming one of the first data-driven companies.

To make this ambition real, we need talented and passionate people across all tech domains: Cybersecurity, Cloud, DevOps, Infrastructure, Data Science, AI, UX/UI... and above all, Full Stack Development.

So, ready to code the future of Beauty?
What does it look like to work as a Full Stack developer at L'Oréal?
- Web Development: You will collaborate with the product / dev Team / Design team to create and implement web designs, translating visual mockups and wireframes into functional, interactive, and responsive web pages.
- Project management: Estimate the time required for development tasks, identifying potential risks, necessary precautions, and constraints throughout the process.
- Quality Assurance (QA): Engage in the quality assurance (QA) process for new features.
- Documentation: Maintain clear and comprehensive documentation of the codebase, making it easier for other team members to understand and collaborate.
- Collaboration with Experts: Work with specialists in Data Science, AI, Agility, UX/UI, Data Engineering, Big Data, Cloud Architecture, DevOps & IaC.
- Diversity of Data & Missions: From marketing to supply chain, retail or R&I, using internal/external, structured/unstructured datasets.
- Diversity of tech stacks: GCP, Terraform, Node JS, React JS, Python ...
- Innovation: Dedicated time and resources to test new approaches, technologies and tools.

Full stack development is a perfect match for you if:
- You are a student currently pursuing a Master's degree in Engineering/Business School or University.
- Looking for a 6-month internship starting January 2026 with an internship agreement provided by your school.
- Fluent in English or French.
- You have a strong interest in technology and digital innovation, with a demonstrated appetite for web development.
- You are familiar with programming languages and web technologies, ideally with skills in Node.js, React.js, SQL/PostgreSQL, ORMs, API development, testing frameworks.
- You are curious, proactive, organized and value simplicity, performance and detail in code.
Beyond technical skills, we are primarily looking for individuals with strong potential, an entrepreneurial spirit, and the ability to challenge the status quo.

Benefits
- Compensation: €1700 gross monthly
- Transportation: 60% of travel costs covered
- Remote Work: 1 day of remote work per week
- Leave: 1 day per month

L'Oréal Group Perks
- Access to L'Oréal Learning Platform to boost your development ( 7 pillars for success in e-commerce, Developing your direct e-commerce value triangle)
- Staff Sales at preferential rates
- Friends & Family flash sales for your close ones
- And depending on the campus: Gym & Concierge services.

The Recruitment Process:
- Recruiter Interview - 30 min: To introduce yourself and discuss the position & the L'Oréal Group.
- Meeting with your potential future manager - 45 min: To discuss the role's missions.

And because equal opportunities and diversity are strong values within the Group, as a beauty leader, we consider every application.
Regardless of your gender identity, sexual orientation, visible and/or invisible disability(ies), social or cultural background, health status, age, religion, or any other element that makes you unique, our teams will carefully review your profile.
Here, you can be yourself, dare, have an impact and grow.
So, are you ready to live the L'Oréal experience?