Wassim Ayari

Architect AI Solutions & Lead Data Scientist

Salaire / Taux journalier

Paris, France

Freelance, ouvert au CDI

Expertises

Machine LearningDeep LearningIAPythonLinuxHadoopTensorFlowRequêtes SQLScrumFastAPIPostgreSQLDockerscikit-learnRedisKerasPyTorchRESTful APIsMongoDBData EngineeringRSalesforce Marketing Cloud

Langues

Français (Maternelle)Arabe (Maternelle)Anglais (Courant)

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.

Liens

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

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