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Marwen A.MA

Marwen A.

Data Engineer (PhD)

€470/day
Lyon, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Marwen

Data Engineering / Analytics Engineering

- Data Collection and Integration (via API, Databases, Datawarehouses, Datamart, Datalake, SQL, NoSQL…)
- Data Transformation Extract, Transform, Load (ETL) and/or Extract/Load/Transform (ELT)
- Data Storage in various formats (SQL, NoSQL, JSON)
- Creation and maintenance of aggregation tables
- Database (DB) Documentation
- Database Migration
- Data Orchestration: Data flow orchestration

  • French

    Native or bilingual

Can work on-site
Lyon (up to 50km)

Experience

  • APRR
    Data Engineer
    RETAIL (LARGE RETAILERS)
    December 2024 - May 2025 (5 months)
    Lyon, France
    • Proposal of a scalable data architecture for building a data warehouse.
    • Automation of pipelines with Datakui to query the Snowflake data warehouse, reducing processing time.
    • Conducting business workshops to gather needs related to indicators and monitor changes based on new requirements.
    • Making indicators available to business units via Power BI.
    • Documentation of implemented solutions via DataGalaxy to ensure optimal knowledge management.
    • Implementation of CI/CD processes via Azure DevOps for continuous delivery and optimal deployment management.
    • Ensuring the maintainability of solutions while respecting delivery deadlines.
    • Writing documentation for implemented solutions and managing development versioning.
    • Deployment of solutions in production.
    • Expertise in data transformation and management on Snowflake.
  • Groupe APICIL
    Tech Lead -Data Engineer
    May 2023 - Today (3 years and 1 month)
    Lyon, France
    Tech Lead -Data Engineer at Micropole on assignment at APICIL
    • Experience in database reconstruction:
    - Expertise in data transformation.
    - Mastery of AWS elements/components.
    - Mastery of the Snowflake data warehouse.
    • PRGD Standards, Standard Reporting, PRDG Prestaprévoyance, PRDG Presta Santé...
    • Responsible for developers and technological solutions
    • Skills: snowflake · Matillion ETL · SQL · Amazon Web Services
  • Ponant
    Data Engineer
    July 2022 - May 2023 (10 months)
    Lyon, France
    Data Engineer at Micropole on assignment at PONANT
    • Migration of an old datamart (dwh) to the new data vault engine:
    Unit tests, integration tests, Needs analysis / Business workshops.
    • Reporting (QuickSight):
    Processing bug and evolution tickets.
    • AWS Cloud Technology
    Data Storage (Redshift, S3, RDS), Data Processing & Computing (Lambda, Step Function, Ec2) ETL(Glue, Appflow)
    • Python (reverse Engineering)
    • DataVault Modeling

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Education

  • Data Engineer
    Global knowledge
    2022
    • Culture générale des systèmes d’informations (Big Data, Data Warehouse, Data Mart) • Perfectionnement en programmation orientée objet (Python, Java). • Mise à niveau en base de données relationnelle et non relationnelle (SQL, NoSQL avec Mongo DB) • Initiation à l’administration Linux (Commandes, Shell, Scripts) • Utilisation des systèmes distribués Apache (Hadoop HDFS, Spark) • Apprentissage du Cloud via Microsoft Azure Data • Mettre en place et intervenir sur des environnements containérisés
  • DATA Scientist
    centralesupélec openclassroom
    2021
    7 projets : 1) Analyser des données de systèmes éducatifs (Exploration, nettoyage et visualisation de données). 2) Conception d'une application de santé publique en relation avec la nutrition (Analyses statistiques univariées et multivariées et entrainement d'un modèle de Machine Learning pour prédire le NutriScore.) 3) Prédictions de consommation électrique de bâtiments (problème de régression, gradient boosting, validation croisée) 4) Segmentation clients d’un site d’e-commerce (clustering K-means) 5) Classification des biens de consommation : NLP, CV et deep learning (TensorFlow, Keras, OpenCV, NLTK) 6) Implémentation un modèle de scoring (classification binaire), développement d'un dashboard interactif (Streamlit) 7) Déployer un modèle Big Data dans le cloud (AWS, PySpark)

Skill set (11)

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