Data Scientist H/F

Belle.ai is looking for AI Scientists to join our AI team. You will work closely with dermatologists, hair specialists, and medical experts to build next-generation AI products for hair health and skin health., * Develop and improve AI models for skin analysis using computer vision and deep learning

• Work hands-on with image-based ML tasks (classification, detection, segmentation)
• Collaborate closely with doctors and domain experts to translate medical expertise into AI systems
• Analyze datasets: data exploration, cleaning, labelling strategy, and validation
• Prototype quickly and iterate based on feedback from medical and product stakeholders
• Contribute to production-ready AI pipelines, not just research experiments
• Participate in technical discussions, model reviews, and roadmap planning
• Continuously research and apply new AI methods relevant to hair and skin AI
• Write clear documentation for models, experiments, and results

Do you have experience in TensorFlow?, This role is ideal for someone who is product-driven, ambitious, curious, and not afraid to step outside pure engineering to learn medical knowledge., Mindset (very important)

• Curious and eager to learn - even as an engineer, you're excited to learn medical concepts
• Product-oriented: you want to build things that ship and make impact
• Ambitious and driven: you aim high, take initiative, and are not afraid of challenges
• Creative and innovative: always looking for better ways to solve problems
• Growth mindset: motivated to improve, level up, and move forward
• Fearless attitude: comfortable with uncertainty, experimentation, and change

Requirements / Qualifications

• 1+ year of professional experience as an AI Scientist / ML Engineer
• Strong foundation in machine learning and deep learning
• Hands-on experience with Python and ML/DL libraries (e.g. PyTorch/TensorFlow, OpenCV, NumPy, pandas)
• Experience with computer vision on images
• Ability to work with imperfect, real-world data
• Comfortable collaborating with non-technical stakeholders (doctors, experts, product teams)
• Professional English required (French is a plus)
• Nice to Have
• Prior experience working in dermatology / medical imaging
• Experience with clinical or dermoscopic images
• Familiarity with segmentation tasks or medical validation workflows

• Base salary: €39,000 - €45,000 gross/year (depending on experience) + performance bonus up to 19% annual salary.
• Equity: stock/options package (based on level and performance)
• Sign-on bonus: available for strong candidates (case-by-case)