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Boubacar GassamaBG

Boubacar Gassama

Data Analyst

€450/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Boubacar

Confirmed Data Analyst specializing in Business Intelligence, Data Engineering, and data integration with over 5 years of experience in the Retail, Transport, Industry, Health, and Education sectors.
Double expertise:
  • BI / Dataviz: Power BI (expert), Tableau, Looker Studio, storytelling, KPI creation
  • Data Engineering / ETL: Talend (RUN & BUILD), BigQuery, Dataform, GCP.
  • Languages: Python, SQL, PySpark, DAX.
Capable of transforming complex data volumes into actionable insights and business-value dashboards, optimizing data pipelines, and structuring decision-making environments.
  • French

    Native or bilingual

Can work on-site
Paris (up to 50km)

Experience

  • Business School
    Consultant
    EDUCATION AND E-LEARNING
    February 2025 - October 2025 (8 months)
    Conakry, Guinea
    Context:Complete structuring of a data system for a school in the launch phase.
    Achievements:
    • Data modeling: students, programs, enrollments, payments. - Creation of the relational schema for academic reporting.
    • Development of Power BI dashboards (enrollments, digital engagement, marketing campaigns).
    • Elaboration of business KPIs (conversion, retention, engagement).
    • Power BI training for professionals.
    Results:
    • Implementation of a complete steering system in < 3 months.
    • Reduction in manual reporting time.
    Microsoft Power BI SQL Google Analytics Microsoft Excel
  • KOMEET TECHNOLOGIE
    Data Consultant
    CONSULTING AND AUDITS
    March 2024 - November 2024 (8 months)
    Paris, France
    Context: Replacement missions at Siemens Belgium & Pierre Frey, focused on Talend integration.
    Achievements:
    • File integration interfaces under Talend (ERP/CRM).
    • Testing and validation of the Talend R2024-05 migration.
    • Elaboration of the Talend job migration plan.
    • Development of Talend Web Services connected to Dynamics.
    • Talend BUILD configuration for ERP flows & RUN maintenance.
    • Production deployment tests (TMC) of critical flows.
    Results:
    Improved performance of batch processing.
    Talend ESB Microsoft Dynamics CRM
  • ACSSI
    Data Analyst (TRANSPORT)
    TRANSPORTATION
    June 2023 - March 2024 (9 months)
    Lille, France
    Context:Qlik → Power BI migration for all business units.
    Achievements:
    • Creation of new Power BI applications from Qlik models (BUILD).
    • Implementation of RLS for access security.
    • Corrective maintenance of existing applications.
    Results:
    • Automated dashboards with real-time data.
    • Production of business insights improving decision-making.
    Snowflake Microsoft Power BI

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Education

  • MSc Data Project Management
    ESTIAM
    2020

Skill set (23)

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