Freelancer profile translated to English.

Description

Data Engineer / Data Architect freelance, with over 18 years of experience in the design, implementation, and industrialization of complex data solutions.

I mainly focus on data integration, repository structuring, modeling, and data architecture, in demanding business environments: retail, finance, supply chain, CRM, e-commerce, or multi-source business repositories.

My background is built on a very solid foundation in SQL Server, SSIS, ETL/ELT, and inter-application flows, complemented by experience with modern data platforms like GCP / BigQuery and Databricks.

I handle projects end-to-end: needs assessment, model design, specification writing, processing development, testing, documentation, production deployment, and operational monitoring.

I have notably worked on:

• Design and optimization of critical data flows;

• Structuring enterprise models: Customer, Order, Stock, Pricing, FP&A;

• Unifying data repositories from multiple sources;

• Implementing industrialized and maintainable processes;

• Collaborating with business teams to translate their needs into robust data solutions.

Main skills:

• Integration & pipelines: SSIS, Databricks, PySpark, Talend, Stambia, Dataform

• Databases & cloud: SQL Server, Oracle, BigQuery, GCS, Delta Lake, Azure basics

• Data architecture: Data Warehouse, DataMart, dimensional modeling, repositories, documentation

• Industrialization: Git, Azure DevOps, Control-M, unit tests, process monitoring

• Functional domains: retail, CRM, finance, supply chain, e-commerce, product development

My approach combines technical expertise, business understanding, and a sense of industrialization, with a simple goal: to build reliable, readable, and truly useful data solutions for the teams that use them.

Industry field of expertise

Languages

French
Native or bilingual
English
Conversational

Workplace preferences

Can work on-site

Nemours (up to 50km), Nemours (up to 100km)

CERBALLIANCE
Data Engineer Databricks
HEALTH AND WELLNESS
April 2026 - July 2026 (3 months)
Migration and refactoring of data processing to Databricks, with an industrialization and reliability focus.
Design and development of Python / PySpark pipelines to structure and feed normalized data layers.
Contribution to the unification of multi-source business repositories, with
documentation of business rules and modeling choices.
Implementation of unit tests and use of Git / Azure DevOps to secure developments and facilitate maintenance.
Databricks PySpark Python Delta Lake
Isabel Marant
Data Engineer
LUXURY GOODS
February 2017 - Today (9 years and 6 months)
Paris, France
• Development of SSIS flows and SQL procedures for feeding a CRM datamart
• Implementation of customer KPIs from raw data: purchase volume, frequency, main activity, etc.
• Creation of enriched indicators based on complex calculation rules: main store (Main Store), Sales Associate (SA) reference, personalized customer segmentation
SQL SSIS
Celine
Data Engineer / Data Architect
LUXURY GOODS
June 2016 - September 2025 (9 years and 3 months)
Paris, France
# Data Engineer
Design, development, monitoring, and optimization of over 300 SSIS flows, covering a wide inter-application scope (ERP, POS, CRM, e-commerce, warehouses, etc.)
Development of an SSIS interface for feeding the Image Bank
Creation of CRM-oriented KPIs (customer segmentation, main store typology, activity indicators) in collaboration with CRM business teams
SSIS platform capable of supporting intensive loads, with flow triggers every 8 seconds on certain days
Bi-directional communication with third-party systems: Salesforce, Anaplan, Mojix, Joor
Design and maintenance of critical flows between the ERP and the central warehouse (orders, statuses, stock updates)
Contribution to a robust data architecture, supporting constant availability of critical data (orders, stock, customer)
Enrichment of CRM data contributing to better customer targeting and improvement of marketing actions
Data Architect
Structuring the data platform around enterprise models: Customer, Order, Pricing, Stock, FP&A
Definition of modeling, nomenclature, and documentation standards
Modeling of a multi-company FP&A system, interfaced with Anaplan, facilitating exchanges with management control
Participation in the BI migration to BigQuery, with partial redesign of data models, adaptation of flows, and guarantee of data quality during go-live
Close collaboration with business departments (Finance, CRM, HR, Dev & Sourcing) to formalize functional needs, design models, and ensure their alignment with usage
Writing functional and technical specifications for the migration from JD Edwards to SAP
Normalization of enterprise models favoring cross-functional data reading between businesses
SSIS Data Integration Transact-SQL Big Query Solution Design