Freelancer profile translated to English.

Description

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.

Languages

French
Native or bilingual

Workplace preferences

Can work on-site

Paris (up to 50km)

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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MSc Data Project Management
ESTIAM
2020

Boubacar Gassama

Data Analyst

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