
Wassim Ayari
Architect AI Solutions & Lead Data Scientist
Salaire / Taux journalier
Paris, France
Freelance, ouvert au CDI
Expertises
Langues
À propos
Introduction
Data professional passionate about innovation and the design of high-impact technological solutions. Expert in Artificial Intelligence and Data Science, I have led strategic projects transforming purchasing processes and enhancing customer experience in the retail sector. Strongly committed to leveraging data as a performance and decision-making driver, I place AI at the core of digital transformation initiatives.
Expérience de travail
CTO
Feelinx
nov. 2024 - Présent
2 ans
Tunis, Tunisie
Observatory of Fundamental Rights – AI Legal Platform – Developed a platform to centralize and analyze case law related to fundamental rights in Tunisia. – Designed an AI module capable of analyzing and understanding legal texts. – Built a contextual and semantic search engine using AI to assist users in legal research – Created a virtual assistant to guide non-lawyers on the platform. Technologies: Python, Transformers (GPT), LangChain, RAG, LLM fine-tuning, FastAPI, PostgreSQL, Vector Databases (FAISS), Docker HotelGenuis.App – AI Concierge Platform – Multilingual AI assistant for hotel guests (recommendations, bookings, instant support). – Real-time monitoring of customer requests and AI responses (API + dashboards). – Predictive ML models to anticipate guest needs and increase upselling. Technologies: Python, TensorFlow, Scikit-learn, PostgreSQL, Redis, FASTAPI, Predictive Modeling Attijari Bank - AI-powered Internal Assistant for Ticket Management & Knowledge Automation – Designed and deployed an AI-driven internal assistant to automate ticket processing for bank employees, improving response time and internal workflow efficiency across departments. – Built an intelligent system capable of understanding and answering internal circulars, memos, and financial procedures, – Integrated the assistant with the bank's internal ticketing system and enabling automatic classification. – Implemented intern LLM and document understanding models to analyze regulatory documents, financial processes, and internal policies. Technologies: Python, Transformers, LangChain, RAG, FastAPI, PostgreSQL, Vector Databases (FAISS / Pinecone), Docker.
Senior Data Scientist /E-commerce
Freelance
janv. 2022 - janv. 2024
2 ans 1 mois
– Production deployment of product classification models for imbalanced datasets using deep neural networks. – Built production-ready ML pipelines with CI/CD integration. – Document classification using Transformers, LangChain, and generative AI. – End-to-end MLOps for retail and e-commerce platforms. Technologies: Python, Scikit-learn, TensorFlow (Keras), Transformers (BERT, GPT), LangChain, FastAPI, Vertex AI, BigQuery, MongoDB, GitLab CI/CD, Docker.
Senior Data Scientist (Image Recognition)
National Forestry Office
févr. 2021 - nov. 2021
10 mois
Paris, France
– Designed CNN and PointNet neural networks for 2D and 3D image classification – Developed ML models such as XGBoost and RandomForest. – Preprocessed imagery and structured datasets. Technologies: Python, TensorFlow, PyTorch, CNN, PointNet, Scikit-learn, PostgreSQL, REST APIs
Senior Data Scientist (Anomaly Detection & Correction)
Ministry of Finance
avr. 2020 - déc. 2020
9 mois
Paris, France
– Built predictive ML models (XGBoost) for anomaly correction. – Created postal address correction algorithms using ML and rule-based systems. – Data preprocessing and feature engineering. Technologies: Python, XGBoost, TensorFlow, Scikit-learn, REST API, PostgreSQL
Senior Data Scientist (Marseille : Smart City – Risk Prediction)
Engie Ineo
mai 2019 - nov. 2019
7 mois
Paris, France
– Geospatial data analysis to detect event conflicts. – Event risk prediction using RandomForest and XGBoost. – Generated KPIs for city operations. Technologies: Python, PySpark, Hive, Hadoop (Cloudera), MongoDB, Scikit-learn, GIS data processing
Data Scientist / Data Engineer (Recommender Systems)
Carrefour
juil. 2018 - avr. 2019
10 mois
Paris, France
– Deployed large-scale recommendation engines for Carrefour loyalty customers. – Computed affinity scores and built navigation KPIs. – Ran workshops with marketing and data teams. Technologies: Python, PySpark, Hive, Hadoop, BigQuery, Recommender Models, Data Engineering
Data Scientist (Data Audit & Segmentation)
Toyota
mars 2018 - juin 2018
4 mois
Paris, France
– Data audit (quality, missing values, completeness). – Built ML-based segmentation models to replace classic marketing segments. Technologies: R, Python, RShiny, Salesforce Marketing Cloud, Clustering & Classification Models
Data Scientist (Fraud Detection)
CNAF
avr. 2017 - févr. 2018
11 mois
Paris, France
– Modèle de détection de fraude avec la base de données graphique (Neo4j) – Built fraud detection models using Neo4j graph algorithms. – Behavioral analysis of beneficiary journeys. – Risk prediction models. Technologies: R, SparkR, Hive, Hadoop, Impala, Neo4j (Cypher queries)
Data Scientist (Analyse Marketing)
Fast Retailing
avr. 2016 - mars 2017
1 an
71000 Mâcon, France
– Behavioral clustering and next-purchase prediction. – Markov Chain modeling for customer transitions. – CLV calculation. Technologies: Python, R, Azure Machine Learning, Logistic Regression, Markov Models
Formation
Université Claude Bernard Lyon 1
Master's Degree, Mathematical Engineering (Specialization in Statistics, Computer Science & Data Science)
2016 - 2016
1 mois
Ecole Nationale des Ingénieurs de Tunis
Bachelor's Degree, Mathematics and Applications
2014 - 2014
1 mois
Licences et certifications
Training and Certification Generative AI
Délivré le : janv. 2024
Training GCP (Machine Learning Engineer)
Délivré le : janv. 2022
Training Google Analytics
Délivré le : janv. 2019
Training Big Data (Cloudera)
Délivré le : janv. 2019