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Yassine YousfiYY

Yassine Yousfi

Supermalter

Data Analyst, BI Expert, Power BI, Tableau Certified

€650/day
34 projects
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Yassine

Looking for a Business Intelligence and Data Analytics expert? You've come to the right place.

💡 I am a BI Expert & Senior Data Analyst with over 7 years of experience.

✅ Certified Microsoft Power BI
✅ Certified Salesforce Tableau
✅ Certified Microsoft Azure

🏅 Super Malter level 3: Top 3% of freelancers on Malt
🏆 7 years of experience in Business Intelligence and Data Analytics
👨‍💻 Worked with CAC40 clients: Schneider Electric, Orange, Decathlon, IPSEN Pharma

📊 Experience in various sectors:

✅ Retail and E-commerce
✅ Pharma and Healthcare
✅ Energy
✅ Insurance
✅ Automotive Industry
✅ Telecommunications and Technology
✅ Distribution and Sports

🚀 What I can do for you:

✔️ Gather business needs and define strategic KPIs
✔️ Write User Stories for data ingestion & BI reporting
✔️ Estimate and prioritize the backlog
✔️ Model, clean, and exploit collected data
✔️ Prepare the BI architecture and end-to-end decision-making chain
✔️ Participate in Dataviz POCs (UI/UX)
✔️ Scope and manage Salesforce CRM projects
✔️ Create and maintain interactive dashboards (Tableau Software, Tableau Cloud, Power BI)
✔️ Automate and deploy via CI/CD
✔️ Conduct audits and optimize BI solution performance
✔️ Manage reporting projects: schedule, budget, and resources
✔️ Administer Tableau servers and sites (maintenance and optimization)
✔️ Write technical and functional documentation
✔️ Train teams on data visualization and best practices

I also have experience in Agile project management (Scrum, Kanban) on Jira.
- BI & Analytics: Salesforce Tableau - Microsoft Power BI - Google Looker, SalesForce CRM Analytics (Tableau CRM).
- Cloud & Big Data: Amazon AWS Redshift - Databricks, Microsoft Azure, Google Cloud Platform GCP.
  • French

    Native or bilingual

  • English

    Fluent

  • Arabic

    Native or bilingual

Can work on-site
Paris (up to 50km), Montpellier (up to 50km), Nice (up to 50km), Marseille (up to 50km), Lyon (up to 50km)

Experience

  • Accenture
    Malt logoOn Malt
    Mission for Engie - Expert Salesforce Tableau Cloud / Tableau Next
    CONSULTING AND AUDITS
    September 2025 - April 2026 (7 months)
    Paris, France
    Audit of the current configuration (licenses, spaces, data sources, security).
    Definition of best practices for administration and governance under Tableau Cloud.
    Optimization of dashboard and extraction performance.
    Support for internal teams on Tableau Next innovations.
    Migration and technical validation of environments.
    Knowledge transfer to Data/BI teams.
    Tableau Software Salesforce Google Cloud Platform (GCP) Tableau Cloud Finance
  • EDF
    Expert Data Analyst | Business Intelligence | Energy
    ENERGY AND UTILITIES
    January 2025 - Today (1 year and 5 months)
    Paris, France
    Context:Lead BI & Data Analyst within DIPDE (Nuclear Park Engineering and Environment Division) responsible for engineering studies and improvement works for the nuclear islands of 56 French reactors. I joined the SIP (Information Systems and Heritage Protection) department, tasked with ensuring a high-performing IT system and supporting digital transformation.

    Accomplishments:
    • Upskilling and technical support for 4 experienced Data Analysts.
    • Continuous maintenance and evolution of 20+ dashboards in Tableau/Power BI, addressing diverse use cases in the nuclear energy sector, accessed by thousands of users worldwide.
    • Preparation of a migration plan from Tableau to Power BI Service/Power Apps.
    • Implementation of Agile methodologies (Scrum) to streamline project management and accelerate deliveries, along with versioning/backup governance.
    • Establishment of user management rules and data access security (Row Level Security - RLS).

    Responsibilities:
    • Technical leadership and coordination with a large team of 20 people (PO, PM, Data Engineers, Data Analysts, BI Experts, Business Stakeholders).
    • Supervision of data visualization, data preparation, data quality management, and data architecture tasks.
    • Ensuring the technical consistency and performance of deployed BI solutions.
    Data Visualization Microsoft Power BI Power BI Services Tableau Software Power BI Desktop
  • Decathlon
    Expert Data Analyst | AI and Data Analytics | Retail | E-commerce | Sport
    RETAIL (LARGE RETAILERS)
    January 2023 - December 2023 (1 year)
    Paris, France
    Decathlonis a global leader in sports retail, present in over 70 countries, with more than 100,000 employees and revenues exceeding 15 billion euros.
    ItsDecathlon Digitaldivision is dedicated to digital transformation and data utilization to optimize customer experience and commercial performance.

    Context:I joined the Pricing and Insights team to contribute to optimizing pricing strategies and competitive analysis.
    The team consisted of 3 Data Analysts, 3 BI Engineers, 2 Data Scientists, 4 Analytics Engineers, as well as Product Managers, Product Owners, and UI/UX Designers located in France (Lille and Paris), the UK, Spain, the Netherlands, and Romania.

    Responsibilities:
    • Design and development of interactive dashboards on Tableau Cloud, enabling visualization and analysis of e-commerce competitor data (Amazon, Intersport) from providers Netrivals, Skuddle, Minderest for dynamic pricing analysis.
    • Optimization of data pipelines and ETL processes with Tableau Prep, Databricks, and dbt for seamless integration with BI tools.
    • Design and implementation of an end-to-end BI architecture (Dev, QA, Prod) ensuring a continuous development cycle.
    • Data validation with MOA stakeholders, performance optimization of 32% of dashboards, and improvement of user experience with Decathlon's UI/UX templates.
    • Application and training of users on BI best practices to promote reuse and scalability of BI solutions.
    • Administration of Tableau Cloud, including access management, dashboard performance, and data governance.

    Technical Stack:
    • BI & Data Visualization: Tableau Desktop, Tableau Prep, Tableau Cloud, Glooker
    • Cloud Computing: AWS, Databricks, DBT, SQL, One Big Table (OBT)
    • CI/CD: Airflow, GitHub Actions
    Tableau Software SQL Azure Databricks DBT AWS Cloud

Reviews

4.9

Out of 6 ratings

R

Reda

BM - INTM

Reviewed on 4/15/2026

I recommend Yassine. He adapts quickly to different environments and can intervene on complex projects.
K

Kenneth

Business Manager - INTM

Reviewed on 3/16/2026

Yassine works for one of my clients as a Power BI expert. The technological environment he operated in includes: Power BI, Azure Cloud, DevOps, Fabric, Databricks, FinOps, and Data Analysis. His seriousness and commitment are real assets and bring real added value to the progress of client projects. I highly recommend Yassine for your projects.

Recommendations

Hugo KajdasHK
Houssem G.HG
Priam PerrotPP
+9
Hugo Kajdas and 11 other people have recommended Yassine

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Education

  • Master Business Intelligence
    Paris Dauphine
    MIAGE - Business Intelligence Specialist

Certifications

Skill set

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