Freelancer profile translated to English.
Back to original languageAbout Chelsia
Hello đź‘‹,
I am a freelance BI consultant specializing in data visualization and decision support, with recognized expertise in Tableau and excellent mastery of Power BI.
I have supported major groups such as Decathlon and L'Oréal in creating strategic dashboards for management and operational teams.
🔧 My expertise:
• Tableau & Power BI: designing impactful dashboards, storytelling, modeling and optimization.
• Data modeling: star schema, optimized relationships, calendar tables.
• Languages & transformations: DAX, Power Query (M), SQL.
• Security & governance: RLS/OLS, workspace organization, deployment and refresh.
• BI project management: needs framing, business workshops, KPI definition, prototyping (Figma, Excalidraw).
🚀 What I can bring:
• Clear, efficient dashboards adapted to decision-makers (EXCOM, managers, operational staff).
• A cross-functional BI vision thanks to my dual Tableau + Power BI expertise.
• Total autonomy and the ability to be a force of proposal with business lines.
đź“Ť Based in Paris, available for on-site or remote assignments.
👉 If you are looking to transform your data into powerful decision-making tools, I would be delighted to chat with you.
English
Fluent
French
Native or bilingual
Can work on-site
Paris (up to 50km), Creil (up to 20km)
Experience
- DECATHLON SE - FRANCEData analyst BISPORTSJanuary 2024 - Today (2 years and 7 months)Paris, FranceTeam: PerformanceDevelopment of a dashboard integrating key KPIs for the EXCOM, enabling global and international monitoring of the company's performance.- Creation of UX mockups on Figma for a better understanding of user needs.- Data modeling under Databricks.- Creation of dashboards on Tableau, including a sales tracking dashboard, inventory management and customer satisfaction.- Collaboration with teams to ensure alignment of indicators with strategic objectives.
- Engie - SAData Analyst - Marketing and Sales DepartmentENERGY AND UTILITIESSeptember 2022 - September 2023 (1 year and 1 month)Paris, FranceTeam: Data DelegationProvision of data, analyses, KPIs to sales, marketing, and campaign teams.- Understanding needs, framing and weighing the project.- Identification of different data sources, modeling and development of Reporting on Tableau & PowerBI- Writing statements of needs, functional and technical specifications, test scripts.Tools: Jira, Informatica, Teradata (SQL), Tableau, PowerBI
- Bouygues TelecomBI data analyst - B2B Finance DepartmentTELECOMMUNICATIONSDecember 2020 - July 2022 (1 year and 8 months)Team: Commercial Performance - B2B Finance DepartmentIn charge of commercial analysis of SMEs, subsidiaries and WSF. (Achieved vs target, Lead volume, opportunity, conversion rate, orders, deployment, gross margin, revenue, EBITDA, ARPU…)- Automation of weekly, monthly, annual reports from Excel to Tableau.- Data modeling (SQL)- Proposal and construction of new dashboards on Tableau.- Facilitation of committees thanks to KPIs developed on Tableau.- Tableau usage training.Tools: Tableau, Salesforce, Teradata (SQL), PowerQuery, Excel, Thinkcell (DataViz)
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Education
- Master 2 (M2), GeneralistESILV - Léonard de Vinci Graduate School of Engineering2020Master 2 (M2), Généraliste
- Master of FinanceAsia Pacific University of Technology and Innovation (APU / APIIT)2020Master 2 (M2), Mathématiques de finance