Location: Metz / Nancy
Job Type: Part-Time job (CDD in French)
Start Date: November, 2026
Duration : 6 to 12 months
About us
GenerousCo is a French-American fast-growing startup with the mission to provide every individual with a single destination where every dimension of their life (physical, mental, and social) comes together to help move forward with clarity and purpose.
As we scale, we’re looking for a dynamic and hands-on Full Stack Developer to join our agile, cross-functional team. This role offers a unique opportunity to work in a collaborative, fast-paced, and supportive environment that is grounded in science and powered by technology (AI, machine learning, and computer vision to deliver personalized, high-precision insights).
Your role
As our Full Stack Developer, you will:
• Design, build, and maintain robust code and backend infrastructure.
•Contribute to front-end development for internal tools.
•Write clean, maintainable, and efficient code in both front-end and back-end contexts (tools listed below).
•Collaborate with Data Scientists / Data Engineers to implement scalable data solutions with data pipelines and/or ML models.
•Coordinate and integrate work with external development teams.
•Ensure the security, quality and scalability of our applications & data workflows.
Qualifications
Must-Have
•Bachelor's or Master’s degree in Computer Science, Engineering, or related field (Gap year or End of curriculum Internship only → No YEAR 1 or YEAR 2 internships)
•Solid coding experience with Python and/or JavaScript and/or Node.js, for efficient backend development.
•Proficiency in front-end frameworks (REACT, VUE.js or similar)
•Experience with modern databases (SQL, NoSQL, …).
•Strong understanding of data pipelines, APIs, and microservices architecture.
•Comfortable working in a fast-paced startup environment and adapting to new challenges.
•Excellent communication skills, both written and verbal (Fluent in English, French as a plus)
Nice-to-Have:
•An understanding of Haskell Language
•Knowledge of GraphDBs
•Exposure to Cloud platforms (AWS, GCP, or Azure).
•Understanding of gambling screen technologies for specialized UI/UX design
•Familiarity with data visualization tools (e.g., Dash, Streamlit, or Plotly)
•Familiarity with dev-ops tools and database management (Git, Docker, Kubernetes, SQL, S3)
What We Offer
•The opportunity to grow with a startup making real-world impact.
•Direct mentorship from experienced Data Scientists and Engineers.
•Flexibility in work hours and location, but the Trainee MUST be based in the French East Region (e.g. Metz, Nancy, Strasbourg).
•A competitive salary package (€1,200 + Travel expenses)
•Health Care Plan (access to French Securité Sociale)
•Opportunities for continuous professional development & career advancement, within GenerousCo.
How to Apply
Send your resume, a short introduction, and links to any relevant projects or code repositories to claire.duquesne@generousco.com
