À propos de Xavier
15 years of experience at the core of Data as a Data Engineer, Analytics Engineer, and Head of Data for startups/scale-ups (OpenClassrooms, Bankin') and large corporations (Hermès, Veolia, Vallourec, Cdiscount, Pepsico, Groupama, IBM, ...).
Snowflake and Databricks certified
Proposed Services
• Data Strategy: Technical advising, team organization, recruitment, and training.
• Expertise: Datawarehouse, Datalake, ETL, Modern Data Stack, Event-based pipelines, Real Time
• Support: I also take on short-term assignments for data collection, exploration, and analysis (Data Analysis, Data Science, Web Scraping, ...).
Principal Experiences
• Data Architect: Designed and built from the ground up a data platform powering both a customer-facing analytics application and internal data transformation workflows
• Head of Data (Bankin'): Designed and implemented the Data platform, organized the team (Data Engineers and Data Analysts), led and managed the team.
• Data Engineer (OpenClassrooms, Cdiscount, Vallourec, Veolia, Hermès, ...): Designed, developed, deployed, and maintained data platforms and pipelines.
• Analytics Engineer (OpenClassrooms, Bankin'): Developed DBT data pipelines, provided best practices and technical guidance.
Additional Experiences
The diversity of the projects I’ve undertaken has given me a comprehensive vision of the Data profession spectrum.
• Machine Learning (Bankin', Cdiscount, OpenClassrooms): Clustering, classification, ML pipeline orchestration.
• Data Analysis (Hermès, Veolia, Ricoh, Groupama, Pepsico): Reporting (Metabase, Cognos, Tableau, Streamlit).
Français
Bilingue ou natif
Anglais
Capacité professionnelle complète
Espagnol
Capacité professionnelle limitée
Basque
Notions
Accepte de travailler sur site
Biarritz (jusqu’à 50 km), Bordeaux (jusqu’à 50 km), Nantes (jusqu’à 50 km)
Expériences
- SportsDynamicsData ArchitectSPORTfévrier 2025 - Aujourd'hui (1 an et 4 mois)Paris, France- Built POC platform for SportsDynamics from single-league to multi-league analytics platform, supporting 30+ competitions simultaneously and enabling SportsDynamics to target professional scouting use cases- Assisted in building product data user experience including data access, visualization dashboards, and new KPIs
- OpenClassroomsStaff Data Engineer & Data Analytics EngineerEDUCATION & E-LEARNINGaoût 2023 - janvier 2025 (1 an et 4 mois)Biarritz, FranceStaff Data Engineer (Freelance)
- Developed and maintained over 20 Airflow pipelines and external ETL workflows.
- Optimized CI/CD pipelines and infrastructure-as-code for improved deployment reliability and efficiency.
- Administered Snowflake data warehouse, including workload monitoring, performance optimization, and permissions management.
- Established Data Contracts in partnership with Product and Finance teams to ensure data reliability.
- Designed and deployed Personalized job offer recommendations and Company reference matching algorithms into production.
Staff Analytics Engineer (Freelance)- Provided technical expertise, guidance, and support to the team on data mart modeling with DBT and best software development practices.
- Nearly eliminated billing errors by completely redesigning a data mart, resulting in significant financial savings.
- Enhanced and optimized mentor payment data mart to reduce costs.
- Bankin'Head of DataBANQUE & ASSURANCESnovembre 2019 - mars 2022 (2 ans et 4 mois)Biarritz, FranceHead of Data
- Defined the company’s Data Strategy: created the roadmap and led the data community for 50+ business users.
- Managed the Data Team (Data Analysts and Analytics Engineers): defined objectives, implemented skill development plans, facilitated team interactions.
- Led data projects end-to-end: stakeholder alignment, planning, technical solution design, execution, progress monitoring, and change management.
- Designed, supervised, and maintained the technical architecture of the data platform (ETL, pipelines, Data Warehouse, Data Lake, CI/CD, Reporting)
- Conducted training on all Data subjects (Data Engineering, Data Analysis, Data Science, ML Engineering).
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Formations
- DUT Génie Télécommunications et RéseauxIUT1 Grenoble2006
- Ingénieur Réseaux et Systèmes d’InformationENSEIRB - MATMECA2009Formation effectuée en apprentissage chez IBM