Freelancer profile translated to English.
Back to original languageAbout Abdelhak
ETL Developer Talend with 8 years of experience in data integration, including 5 years in a large institutional banking institution (critical environment, large volumes, GDPR requirements).
Talend Open Studio v5 to v8 — design of complex batch flows, star schema, ODS, rejection handling, DEV/TEST/PROD deployment. Power BI Reporting (DAX, Power Query) and SAP BI4 for finance and management control teams.
Worked on Oracle, PostgreSQL, REST/XML/JSON APIs. Autonomous delivery, complete documentation, L3 support.
Proficiency in CI/CD practices in ETL/Data context: automated pipeline, Git versioning of Talend jobs, Nexus artifact management, deployment via TAC API.
Immediately available in Île-de-France.
French
Native or bilingual
English
Fluent
Arabic
Native or bilingual
Spanish
Conversational
Can work on-site
Paris (up to 30km)
Experience
- Institut LuxembourgeoisETL Developer TalendPUBLIC SECTORNovember 2025 - April 2026 (5 months)Luxembourg, Luxembourg- Scoping and requirements definition: gathering and formalizing with user members, writing functional and technical specifications- Design of the ETL flow under Talend v8 for automated extraction of statistical data from the Eurostat SDMX 2.1 API.- Architecture of a 3-zone processing chain: API landing → ODS PostgreSQL (staging) → Data Warehouse in star schema (4 dimensions, 2 fact tables).- Creation of Reports in Power BI with Power Query and DAX for measures- Complete technical documentation of flows, architecture choices, and dimensional rejection management.
- Organisme Économie sociale et solidaireSenior BI Consultant | ModelingCIVIC AND SOCIAL ORGANIZATIONSSeptember 2024 - October 2025 (1 year and 1 month)Development of ETL flows under Talend Open Studio v8 mappings, transformations, rejection handling,data quality control.Design of the data model (Merise) to centralize 100% of the files, entity-relationship schema validated before development.Requirements gathering from users,writing functional specifications handed over to the developer.First operational version delivered and adopted by users.
- Caisse des DépôtsSenior BI Consultant | Talend ETLBANKING AND INSURANCEJune 2019 - June 2024 (5 years)- Design, development, and operational maintenance of complex ETL flows under Talend (v5 to v7): mapping, transformation, loading, and rejection management in a group budget steering environment.- Feeding and evolution of existing Data Warehouses via Talend, and development of Power BI / SAP BI reports for a hundred users in the finance and management control teams.- Contribution to data governance: structuring repositories, documenting flow traceability, and applying GDPR compliance rules in a sensitive institutional environment.- Level 3 technical support and training of business users on Power BI and SAP BI - ticket processing and support for autonomy in creating reports and KPIs.- Interface between business teams (finance, management control) and technical teams: requirements gathering, translation into functional specifications, follow-up until delivery.
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Education
- Professional Bachelor's Degree in Information Systems and Data ArchitectureCNAM Paris2016Spécialisation en Business Intelligence, conception de flux ETL et modélisation de données
- Higher National Diploma in Systems and NetworksAFPA Meudon2013Formation technique en administration des systèmes d'information et des infrastructures réseau
Certifications
- Claude 101 - Fundamentals of Generative AI & Prompt EngineeringClaude.ai2026
- Foundations of Project Managementgoogle2026