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Yannick NjinkeuYN

Yannick Njinkeu

Data & AI Consultant | Power BI Expert | MCT

€500/day
2 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Yannick

I support organizations (industry, finance, R&D, large groups) in the transformation and industrialization of their Data & BI platforms.

With over 7 years of experience, I work on complex environments with high volumes (up to 80M+ rows) where the objectives are clear: performance, reliability, governance, and scalability.

🎯 My positioning

I don't just create dashboards.
I build robust, performant, and maintainable decision-making ecosystems.

I work on:

• Power BI Audit & Optimization (modeling, DAX, VertiPaq performance)
• Data Warehouse Architecture & Semantic Models
• BI Migration & Modernization
• BI Governance & Data Security
• Data Project Management in Agile Environments (PO, Scrum, SAFe)

🤖 AI Integration & Automation

I integrate AI as an acceleration lever:

• AI Agents for Report Analysis
• LLM & RAG applied to Business Intelligence
• Data Process Automation
• Improvement of BI Team Productivity

🏭 Experience in Large Environments

• EDF – Industrial Management (EPR FLA3)

• Roche – Finance & Commercial BI

• L’Oréal – SAS to Power BI Migration (R&D)

• YESSS Électrique – BI Audit & Industrialization

• Data Engineering – Complete Decision-Making Platform

🎓 Knowledge Transfer & Leadership

As a Microsoft Certified Trainer (MCT), I have trained several hundred professionals from large groups and public institutions.
• References: Banque Cantonale de Genève, EDF, SNCF, URSSAF, Assurance Maladie, EIFFAGE, OPmobility, KONE, CNIM, WABTEC, RTM Marseille, Région PACA, France Travail, Grand Frais, Erasmus France, CEA etc...
  • French

    Native or bilingual

  • English

    Conversational

Can work on-site
Paris (up to 50km), Paris (up to 100km), Montpellier (up to 100km), Toulouse (up to 100km), Bordeaux (up to 100km)

Experience

  • CEGOS
    Senior Data & AI Consultant | MCT
    EDUCATION AND E-LEARNING
    October 2025 - Today (10 months)
    Lyon, France
    Positioning: Working with organizations and large accounts on critical performance, governance, and data transformation challenges in complex environments (up to 100M+ rows).

    As a Microsoft Certified Trainer (MCT), I combine technical expertise with strategic support, aligning data teams with business, architectural, and modernization goals.

    Mission Objectives:

    • Audit and Optimize BI platform performance
    • Ensure reliability of data models and indicators
    • Structure Data Governance
    • Accelerate team skill development
    • Industrialize Data & AI uses

    Interventions

    Part 1 – BI Audit & Optimization:

    Comprehensive audit of BI environments (model, DAX, Power Query, visuals), performance analysis (DAX Studio, VertiPaq), root cause identification, and implementation of optimization plans.
    Recommendation of target architectures (SSAS Tabular / Fabric), presentation to teams, and documentation of best practices adapted to the context.

    Part 2 – Data/AI Training & Aculturation:

    Design of tailored learning paths, delivery of Data & AI training, training of various profiles (Data, IT, Business), coaching on real cases, and integration of AI uses (LLM, agents, automation).

    Results & Impacts:

    • Significant improvement in report performance
    • Reliability of KPIs and data models
    • Increased adoption of BI tools by business users
    • Standardization of Data practices (modeling, governance)
    • Reduction of technical debt
    • Rapid skill development and team autonomy

    References
    Consulting for major accounts:
    Banque Cantonale de Genève, EDF, SNCF, URSSAF, Assurance Maladie, EIFFAGE, OPmobility, KONE, CEA, France Travail…

    Technical Environment: Power BI | Fabric | SQL Server | SSAS | SSRS | Power Query | DAX | DAX Studio | VertiPaq Analyzer | Tabular Editor | Tableau | Qlik Sense | Talend
    Traitement de données Microsoft Power BI Bases de données IA générative Agent IA
  • Roche
    BI Engineer – Finance & Commercial (Client: Roche)
    PHARMACEUTICALS INDUSTRY
    November 2023 - November 2025 (2 years)
    Grenoble, France
    Context: Working within the Finance department in a demanding international environment, with strong requirements for indicator reliability and commercial performance management.

    Problem: Need to secure and make reliable the indicators used in financial closing and improve visibility on commercial performance.

    Actions Taken:

    - Design and development of Power BI reports on commercial and financial data
    - Optimization of dashboards used during monthly closings
    - Gathering and analysis of business needs (Finance, Commercial, Marketing)
    - Daily support and maintenance of the RoDIS tool (Power BI)
    - Management and updating of commercial databases
    - Ad hoc analysis (Revenue, customer performance, segmentation)
    - Regular delivery of indicators to decision-making teams
    - Coordination with business teams to improve adoption and quality of reporting

    Results & Impacts:

    - Reliability of critical financial indicators
    - Improved visibility on commercial performance
    - Reduction of incidents and stabilization of the Power BI platform
    - Increased adoption of dashboards by Finance & Sales teams
    - Better decision-making during monthly closing

    Environment:
    Power BI Desktop | Power BI Report Server | DAX | Salesforce | SAP | Excel | Scrum
    Salesforce Power BI Report Server Analyse de données Traitement de données SAP
  • ASSYSTEM
    BI Project Manager / Management
    ENERGY AND UTILITIES
    May 2022 - November 2023 (1 year and 6 months)
    Cherbourg-en-Cotentin, France
    BI Project Manager / BI Engineer – Industrial Management.
    Assystem | Client: EDF – EPR FLA3 Project | Cherbourg

    Context: Participation in the strategic program for the construction of the Flamanville EPR (critical industrial project with high complexity), mechanical lot.

    Problem: Lack of consolidated visibility on project indicators and the need to ensure reporting reliability in a multi-stakeholder environment.

    Actions Taken:

    - Gathering and scoping business needs with operational managers
    - BI project management (roadmap, prioritization, tracking via Azure Boards)
    - Consolidation and modeling of data from project teams
    - Design of Power BI dashboards for operational and decision-making management
    - Implementation of key indicators (progress, performance, etc.)
    - Regular communication with stakeholders
    - Supervision and skill development of junior consultants

    Results & Impacts:

    - Provision of structured and reliable BI management
    - Significant improvement in project progress visibility
    - Standardization of reporting processes
    - Contribution to decision-making on a strategic industrial program
    - Effective coordination between business and IT teams

    Technical Environment: Power BI Desktop & Service | Data Modeling | Power Query | DAX | SharePoint | Azure Boards | Agile
    Microsoft Power BI Microsoft Excel Analyse de données Traitement de données Gestion de projet

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Education

  • Master of Science
    Université Claude Bernard Lyon 1
    M.S. Système d'information pour la Gestion

Certifications

Skill set

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