About Mathys
- Extraction and integration of data from various sources (APIs, SQL/NoSQL databases, data warehouses like Snowflake, data lakes, or data marts)
- Cleaning and preprocessing of stored data (SQL, Python) via Extract, Transform, Load (ETL) and/or Extract, Load, Transform (ELT)
- Data modeling with DBT + Jinja (creation of data marts or classic models) for structuring and maintaining aggregation tables
- Data quality monitoring (SLI, SLO, SLA) and quality testing via DBT
- Database (DB) documentation via Collibra or DBT
- Data pipeline orchestration with Airflow
- Data restitution and provision
- Data model design, metric calculation, creation of interactive dashboards (Power BI, Looker Studio)
- Collaboration with Data Engineering and BI teams to ensure the reliability and efficiency of analytical infrastructures
- Organization and deployment of solutions in a cloud ecosystem, particularly Azure,
French
Native or bilingual
English
Fluent
Experience
- DATABIRD
On Malt
Analytics Engineering TrainerEDUCATION AND E-LEARNINGFebruary 2026 - April 2026 (2 months)Coaching and training of classes of about fifteen students on an Analytics Engineering path, with the goal of progressively improving their skills across an entire data workflow (from ingestion to visualization).Leading sessions, explaining technical concepts, correcting exercises, and providing individual follow-up to learners to ensure their progress and autonomy on practical cases.Topics covered during the training:- SQL optimization on BigQuery (performance, costs, clustering & partitioning)
- Setting up ETL/ELT pipelines (Fivetran, Airbyte)
- Data modeling with dbt (medallion architecture, tests, documentation, materialization)
- Production of structured datasets for BI (KPIs, dashboards)
- Implementation of Git & CI/CD workflows
- Orchestration with Airflow and deployment via Docker
- Crédit Agricole Personal Finance & Mobility
On Malt
Analytics EngineerBANKING AND INSURANCESeptember 2025 - December 2025 (4 months)Roubaix, FranceMission:Optimizing traceability and analysis of customer usage on Sofinco's mobile application and web space.Main Actions:o Design and deployment of an interactive dashboard to track user traffic, behavior, and key actions. (Power Bi - DAX)o Automation of data extraction and processing from the Snowflake data warehouse (dbt data engineering, sql, python, airflow)o Implementation of a user action tagging plan and data reconciliation.o Collaboration with business teams to define needs and prioritize analyses.Results:o Adoption of the dashboard by several teams to drive performance and marketing campaigns.o Significant reduction in time spent on manual reports.o Improvement in data quality and traceability, facilitating user journey analysis. - Crédit Agricole PFMAnalytics EngineerBANKING AND INSURANCESeptember 2024 - Today (1 year and 9 months)Roubaix, FranceMission:Optimizing traceability and analysis of customer usage on Sofinco's mobile application and web space.Main Actions:o Design and deployment of an interactive dashboard to track user traffic, behavior, and key actions.o Automation of data extraction and processing from the Snowflake data warehouseo Implementation of a user action tagging plan and data reconciliation.o Collaboration with business teams to define needs and prioritize analyses.Results:o Adoption of the dashboard by several teams to drive performance and marketing campaigns.o Significant reduction in time spent on manual reports.o Improvement in data quality and traceability, facilitating user journey analysis.
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Education
- Master of EconometricsUniversity of Lille2025Cette formation permet de traiter la majorité des problématiques statistiques rencontrées dans le monde de l’analyse des données socio-économiques. o Économétrie : Approfondissement des techniques économétriques (modèles de comptage, modèles de sélection, modèles de censure, régressions...), gestion de l’hétéroscédasticité, de l’autocorrélation, de l'endogénéité et réalisation de tests statistiques. o Analyse de Données : Manipulation et nettoyage de bases de données massives, gestion des valeurs nulles et traitement de données variées. Projets pratiques sur des thématiques comme les accidents à NYC, la sécurité alimentaire au Mali, ou encore le marché immobilier du Doubs. o Machine Learning : Utilisation des K-means, KNN, Random Forest, Boosting, SVM pour des projets de prédiction et de scoring (détection de défauts de paiement), ainsi que de prévisions de séries financières (modèles ARCH, GARCH, ARMA). Utilisation du NLP pour l’analyse textuelle et aux bases du deep learning.
- Data Upskilling Program - Benjamin DubreuSelf-taught2025Le programme Data Upskilling de Benjamin Dubreu m’a permis de renforcer mes compétences sur la 'modern data stack'. J’ai travaillé sur des notions telles que SQL, Python (et POO) et le terminal Linux/Bash, tout en créant des APIs et des mini-sites web entièrement depuis zéro. J’ai également approfondi ma compréhension d’Apache Spark et mis en pratique mes acquis sur Databricks Community Edition pour le traitement distribué des données, tout en apprenant à orchestrer des codes et workflows avec Airflow. Enfin, j’ai pratiqué la gestion de code avec Git à travers des projets concrets, développant ainsi ma capacité à collaborer et à maîtriser le versioning.
Certifications
- Microsoft Certified: Azure Data Fundamentals | DP-900Microsoft2025