Freelancer profile translated to English.

Description

Independent data analysis consultant, available for freelance assignments. With over nine years of experience in strategic analysis, data visualization, and stakeholder support. Certified Tableau expert, currently leading a project to migrate Tableau data sources to Microsoft Fabric and Power BI, with operational expertise in SQL/Python pipelines and star modeling. End-to-end intervention: scoping, data modeling, KPI design and governance, documentation writing, training, and change management.

Tableau public link:

Industry field of expertise

Languages

Spanish
Native or bilingual
French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Lausanne (up to 50km), Genève (up to 10km), Grenoble (up to 10km), Lyon (up to 10km)

Croix Rouge, Genève - ICRC
Tableau Expert
CIVIC AND SOCIAL ORGANIZATIONS
August 2025 - Today (10 months)
Genève, Switzerland
- Provide the IT team with a concrete methodological framework for migrating to Microsoft Fabric and Power BI.
- Map the existing Tableau environment: inventory of workbooks, data sources, calculated fields, parameters, extracts, and usages.
- Develop a migration framework: KPI and calculation catalog, source-to-target mapping, equivalence guidelines (Tableau → DAX), and migration runbooks/checklists.
- Analyze and structure existing data (scans, workbook parsing, standardized documentation)
- Identify gaps/risks, prioritize objects for migration, and define quick wins.
Tableau software Data Migration Tableau to Power BI Migration
BOUYGUES TELECOM
Data Analyst (Strategy)
TELECOMMUNICATIONS
January 2022 - June 2025 (3 years and 5 months)
Paris, France
Clean, transform, and enrich data with Dataiku to prepare it for analysis.
Develop SQL and Python queries to structure data for analysis.
Create and manage automated workflows for data processing.
Present new analyses in Tableau or Excel.
Conduct strategic analyses for the executive committee.
Liaise with internal business units, primarily marketing, sales, and commerce.
Develop data sources on BigQuery (Google Cloud Platform).
Monitor updates to Tableau and Dataiku tools.
2021
Dataiku Tableau software Big Query SQL Teradata
BOUYGUES TELECOM
Data Analyst (Performance)
TELECOMMUNICATIONS
January 2019 - December 2021 (2 years and 11 months)
Paris, France
Migration of 60 reports => from Access/Excel to MySQL/Tableau.
Develop SQL queries to structure data for analysis.
Mastery of star data modeling to improve analysis and reporting.
Define and develop dashboards using the Tableau solution.
Manage Tableau Server (access to sites, projects, and workbooks) for 100 users.
Monitor the operational performance of the "Fixed Deployment".
Plan, control, and coordinate the activity of a junior data analyst.
Define and develop new indicators based on new needs.
Create and maintain the forward-looking roadmap for indicators.
Analyze results to identify areas for improvement.
Liaise with internal business units for deployment, access management, and IT development.
Lead weekly and monthly steering committee meetings with management from these various structures.
2018
Tableau software SQL Performance Management Data Migration