Freelancer profile translated to English.

Description

Modern architectures multiply pipelines, repositories, and automations. The difficulty is no longer solely transforming data, but maintaining real consistency between distributed systems through propagations and enrichments.

I work on critical data transformation and migration projects to identify discrepancies between systems before they propagate into business processes, reporting, KPIs, or AI uses.

My approach is based on:

- Identifying critical data,

- Cross-system validation,

- Detecting propagation inconsistencies,

- And a deterministic logic for reconciliation and auditing.

The problems observed during critical data migrations already exist permanently in modern distributed architectures: divergent repositories, local enrichments, contradictory KPIs, manual corrections, and multiple versions of the same business reality.

The goal is to detect these consistency fractures as early as possible to prevent their downstream amplification.

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Noisy-le-Grand (up to 50km)

Saint Gobain
Data Migration Lead
RAW MATERIALS INDUSTRY
July 2025 - Today (11 months)
Courbevoie, France
Led large-scale HR data migration: extraction, transformation, mapping, and loading into Workday.
Responsible for the quality, integrity, and compliance of migrated data, coordinating with IT, HR, and external partners.
Industrialized control automation using Iris, a solution conceived and developed by myself.
Data Analysis ETL Cross-functional Coordination English Workday
L'Oreal France
HRIS Change Manager (Mapping, Testing, and Cutover)
FASHION AND COSMETICS
July 2024 - July 2025 (1 year)
Clichy, France
Scope: 28 countries, divided into 3 batches

Mission: Coordination and management of HRIS transition activities for the migration from SAP Saphir to SuccessFactors.
International Coordination: Managed communication and collaboration between multiple teams (local L'Oréal teams, publishers, central L'Oréal HRIS team) in English.
Mapping Verification: Controlled and validated the consistency of data mapping between SAP Saphir and SuccessFactors systems.
Functional Acceptance Testing: Supervised solution testing, identified anomalies, validated fixes to ensure functional compliance with business requirements.
Cutover Management: Prepared, planned, and executed the various cutover phases to ensure a smooth system transition across the 28 countries.
SAP SuccessFactors Cross-functional Coordination QA Testing Interface Design English
EIFFAGE CONSTRUCTION
AMOA/Run/Interfaces/Support Consultant
CIVIL ENGINEERING
October 2019 - June 2024 (4 years and 8 months)
Paris, France
Supported finance interfaces on Peoplesoft.
Designed and tested a data quality control application between Workday and GXP.
Defined and validated strategic interfaces.
Maintained and supported interfaces between Workday and various systems.
Implemented flows for a Big Data project, anticipating risks of work accidents by combining data from multiple applications (weather, HR, construction site financial health, etc.).