Freelancer profile translated to English.
Back to original languageAbout Hasnaa
Lead Data Scientist specialized in Generative AI and NLP, I help companies deploy operational AI solutions: Chatbots, RAG on business documents, process automation, recommendation systems, decision support tools.
My added value:
- End-to-end: From prototype to industrialized deployment (FastAPI, GCP, monitoring)
- Dual expertise: Data Science × Software Engineering for robust and scalable solutions
- ROI-driven: Rapid prototyping, impact measurement, then scaling
Mastering the entire production chain (industrialization, cloud deployment, and IT ecosystem integration), my approach is pragmatic: understand the need, prototype quickly, measure the value, then go to production.
I also provide GenAI training to increase technology adoption in companies at all levels.
French
Native or bilingual
English
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- L'OréalAI EngineerFASHION AND COSMETICSApril 2026 - Today (2 months)Saint-Ouen, FranceAI Engineer - Backend DeveloperPython backend development of an enterprise generative AI platform deployed on GCP, serving as a centralized hub for the group's AI capabilities.
- REST APIs & Microservices: Design and development of REST APIs with FastAPI, microservices architecture deployed on Cloud Run
- Multi-model conversational chat: Integration and orchestration of LLMs (GPT, Gemini, Claude, Mistral) with SSE streaming, multi-turn context management, and multi-modal support (text, images, files)
- RAG: Document ingestion pipelines (PDF, CSV, Excel), semantic vectorization, and vector search via Vertex AI
- Agent & tools system: Implementation of the MCP (Model Context Protocol), management of native and external tools with OAuth
- Image generation: Integration of text-to-image models (Imagen, Firefly, Stable Diffusion) with LoRA support and iterative refinement
- Model registry: Dynamic multi-provider management, activation/deactivation, versioning, and centralized configuration
- Data connectors: SharePoint and Snowflake integration, synchronization, and enterprise document indexing
- Evaluation & fine-tuning: LLM-based LLM evaluation metrics, orchestration of fine-tuning jobs via Vertex AI Pipelines
- Infrastructure & data: Firestore persistence, Redis cache, Pub/Sub messaging, IaC Terraform
- EkimetricsSenior Data ScientistCONSULTING AND AUDITSApril 2024 - February 2026 (1 year and 10 months)Paris, FranceTikehau Capital - GenAI Solutions:
- Implementation of a RAG (Retrieval-Augmented Generation) system with a conversational chatbot leveraging annual reports to accelerate document analysis and decision-making
- Development of an automated system for pre-filling due diligence questionnaires via LLM, significantly reducing DDQ completion times and improving knowledge reuse
L'Oréal Tech Acc - Marketing Optimization SaaS Platform:- Backend development of a SaaS platform serving 90 MMM models optimizing €5 billion in marketing budgets across 8 markets
- Design of Python/FastAPI backend software architecture on GCP, including schema design for MongoDB and BigQuery tables to store model results and optimization data
- Development of REST API endpoints for integration
- Implementation of unit tests to ensure code robustness and maintainability
- Scaling of the platform to support growth from 40 to 90 deployed models
Internal - NLP Research Lab:- Design of an Explainable AI (XAI) agent framework for ML model interpretability, enabling business teams to understand and validate predictions
- Development of a comprehensive evaluation framework for RAG applications (quality metrics, hallucinations, performance), strengthening the commercial offering and ensuring the robustness of client deployments
Internal - Technical & Commercial Leadership:- Technical lead on multiple Request for Proposals (RFPs), presenting technical solutions and architectures to C-level clients
- Creation and delivery of GenAI training programs internally and for clients to accelerate enterprise-wide AI adoption
- EkimetricsExperienced Data ScientistCONSULTING AND AUDITSJanuary 2023 - April 2024 (1 year and 3 months)Paris, FranceHermes - Price Elasticity Modeling:
- Design of econometric price elasticity models analyzing demand sensitivity to price changes for a luxury brand
- Conducted a competitive benchmark comparing the brand's elasticity against competitors to identify the optimal pricing
- Generated strategic pricing recommendations supporting high-impact business decisions
L'Oréal France - Business Intelligence:- Consolidation and harmonization of multi-source sales data (regions, channels, products) for a global cosmetics leader
- Development of interactive, executive-ready Power BI dashboards for global reporting, enabling KPI tracking and performance analysis by market
Internal - NLP Research Lab:- Development of Named Entity Recognition (NER) and Entity Linking pipelines to automatically extract and link entities from unstructured text corpora
- Construction of Knowledge Graphs and application of Graph Neural Networks (GNN) to generate insights and discover complex relationships between entities
- Publication of research results in a scientific paper (CIR scheme)
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Education
- Engineering Degree in Applied MathematicsINSA Rouen Normandy2021Engineering Degree in Applied Mathematics
- MSc in Data Science and Engineering (Double Degree)INSA Rouen & University of Rouen Normandy2021MSc in Data Science and Engineering (Double Degree)