Freelancer profile translated to English.
Back to original languageAbout Oscar
Engineer by training with a Master's degree in Econometrics & Statistics, I specialize in Data Engineering and IT Audit (KPMG, Crédit Agricole).
I support digital transformation by automating complex workflows and securing the migration of critical data, particularly during SAP S/4HANA ERP deployments. My current technical expertise focuses on building automated ETL pipelines using Prefect and PostgreSQL, complemented by data visualization in Metabase and Power BI.
My international experience includes 8 years of residency abroad (Morocco, Serbia, Korea, Egypt), fostering strong adaptability and a genuine pleasure in working in multicultural environments.
French
Native or bilingual
English
Fluent
Can work on-site
Lyon (up to 50km)
Experience
- SénovaData EngineerCIVIL ENGINEERINGOctober 2025 - Today (8 months)Lyon, France
- Designed an automated ETL pipeline using Prefect to replace manual Excel-based ERP reporting, drastically reducing data processing time.
- Structured a data warehouse in PostgreSQL to centralize fragmented sources, ensuring data reliability and traceability.
- Developed real-time Metabase dashboards, providing stakeholders with immediate KPI visibility and eliminating a 30-day reporting delay.
- Crédit Agricole Technologies et ServicesInternal IT AuditorBANKING AND INSURANCESeptember 2024 - September 2025 (1 year)Lyon, France
- Drafted audit reports and formulated recommendations, presenting findings to audited teams and senior management.
- Conducted interviews and technical investigations to assess IT risk management across the group's various activities and its service providers.
- Analyzed large datasets using Power Query and Excel, and created dashboards to improve data visualization and understanding.
- Groupe AtlanticSAP Master Data ConsultantMECHANICAL ENGINEERINGSeptember 2023 - August 2024 (11 months)Nantes, France
- Migrated and deployed SAP S/4HANA software for a plant in Egypt.
- Localized, cleaned, migrated, and controlled data using LSMW and SQL to ensure its integrity.
- Trained and supported key users to introduce them to the new system and facilitate their transition.
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Education
- Industrial EngineeringUniversity of Technology of Troyes2022Analyse de données, statistiques, recherche opérationnelle, optimisation mathématique, théorie des jeux, gestion du rendement (yield management).
- Master's degree in Econometrics & StatisticsISFA2025Apprentissage automatique (exploration de données, apprentissage profond), concepts et architectures pour la gestion des données, tests d'intrusion, risques dans les systèmes réseaux, services web et sécurité, cryptologie avancée, calcul formel. Projet : défi de prédiction des primes d'assurance incendie via des techniques d'apprentissage automatique (machine learning).
Certifications
- BULATS English Certificate (C2 Proficient)Cambridge2019
- SQL FundamentalsDataCamp2023