Freelancer profile translated to English.
Back to original languageAbout Wesley
Data Analyst with 6 years of experience with major clients, I combine technical skills, business acumen, and analytical rigor to transform your data into decision-making levers. Passionate about visualization, automation, and optimization, I strive to make your KPIs clear, your processes smooth, and your operational strategies measurable.
French
Native or bilingual
English
Conversational
Spanish
Basic
Can work on-site
Paris (up to 50km)
Experience
- Société GénéraleData EngineerBANKING AND INSURANCEFebruary 2026 - May 2026 (3 months)Courbevoie, FranceExpress intervention within the SGRF Entreprises team as a Data Analyst / Data Engineer: Design of a data pipeline ensuring the collection, cleaning, and consolidation of multiple sources to produce reliable datasets for reportingDevelopment of an automated data pipeline in Python
- Development of a data pipeline in Python to centralize and automate the feeding of data from Teradata, Excel files, and online sources
- Automation of data retrieval, loading, and transformation to secure and industrialize the process
- Harmonization and validation of data to improve the quality of the analyses produced
- Consolidation of multiple sources to provide a unified and actionable vision to business teams
- Improvement of the robustness and performance of processing through Python script optimization
- Provision of clear documentation to ensure the continuity, maintenance, and evolution of the pipeline
Project Management- Collection of business requirements
- Documentation writing
- Acceptance testing
Support for the transition to Power BI- Presentation of the benefits of implementing reporting on Power BI
- Presentation of the advantages of a more modern data management organization with the implementation of a semantic model
- POC of business reporting to Power BI
- EDFData AnalystENERGY AND UTILITIESJanuary 2025 - Today (1 year and 7 months)Saint-Ouen, FranceContext:Intervention within EDF's Pricing team as a Data Analyst, with the mission to support business units in achieving their objectives. This support involves providing appropriate tools, such as automated Business Plans (via macros), Power BI dashboards, and assistance with their proper use.Activities:Data Analysis
- Cleaning, reprocessing, and structuring of data from various sources to ensure its quality and usability.
- Merging and harmonizing heterogeneous datasets to enable coherent and reliable analysis.
- Identification of relevant data in response to business needs.
- Data preparation prior to modeling or visualization phases.
- Implementation of automated processes to validate and accelerate recurring treatments.
Requirements Gathering- Collection of requirements from business teams.
- Analysis and formalization of requests.
- Preparation and facilitation of working groups.
Scoping and Design- Synthesis of business requirements and formulation of recommendations.
- Writing of functional and technical specifications.
- Development and implementation of solutions.
- Monitoring and reporting on project progress.
Acceptance Testing- Definition of the testing strategy.
- Execution of acceptance test scenarios.
Deployment and Operational Maintenance- Deployment of solutions to users.
- Writing of functional and technical documentation.
- Incident monitoring and resolution.
- Corrective and evolutionary maintenance.
- On-site user support.
Change Management- Facilitation of training sessions
- Communication and support to users.
- SuezSupport Business Product Owner DataENVIRONMENTALJanuary 2024 - December 2024 (11 months)Courbevoie, FranceContext:Intervention within a CRM & ERP migration project initiated by the Recycling & Valorization division of Suez France. Responsible for participating in the definition of client needs with the various service providers involved in the project, as well as migrating the commercial service catalog from the Business division to a catalog compatible with CPQ Salesforce, in order to maximize the benefits offered by the solution.Activities:Requirements Gathering
- Collection from business teams
- Analysis of requests
- Preparation and facilitation of workshops with Salesforce & IBM teams.
- Configuration of a Salesforce sandbox to facilitate business projection and help precisely define needs
Scoping and Design- Synthesis of business requirements and formulation of recommendations
- Writing of functional and technical specifications
- Creation of mockups to test repositories
Data Modeling- Design of the future data model for Suez's commercial service catalog, compatible with CPQ
- Configuration of Salesforce CPQ Databooks and various CPQ objects (Bundle, Product, Features, Options, Configuration Attributes)
- Creation of Data Dictionaries for Salesforce objects
Acceptance Testing- Testing of various Bundles via a Salesforce sandbox
- Definition of the acceptance testing strategy
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Education
- Master in IT Methods applied to Business ManagementUniversité Paris Descartes2021Parcours valorisation et protection des données de l’entreprise
- Bachelor's degree in Computer ScienceUniversité Paris Cité (ex Descartes)2019LICENCE INFORMATIQUE
Certifications
- PL300: Microsoft Power BI Data Analyst AssociateMicrosoft2025
- Scrum PSPO IScrum.org2024