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Abdessalem MarsAM

Abdessalem Mars

Senior Data Consultant

€600/day
Bourg-la-Reine, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Abdessalem

Senior Data Consultant, I design and deploy large-scale data and analytics platforms in cloud and hybrid environments. Specializing in multicloud architectures (Azure, AWS, GCP), I develop scalable, decision-oriented solutions (Databricks, Data Factory, S3, BigQuery, Power BI).
I support organizations end-to-end (from ingestion to visualization) to leverage their data and support decision-making. I also act as a technical leader, mentoring teams and defining architecture and governance standards.
I have led several BI, Data Warehouse, and Data Lake modernization programs for international groups (transport, telecoms, finance).
  • French

    Native or bilingual

  • English

    Fluent

  • Arabic

    Native or bilingual

Can work on-site
Bourg-la-Reine (up to 50km), Lyon (up to 10km), Lille (up to 10km)

Experience

  • BCA Expertise
    DATA EXPERT (ARCHITECTURE / MODELING)
    AUTOMOBILE
    December 2025 - January 2026 (1 month)
    Asnières-sur-Seine, France
    Audit and optimization mission for BCA's data architecture. Expertise:
    • Analysis of the existing decision-making architecture
    • Redesign of data models (logical and physical)
    • Optimization of SQL Server Data Warehouse
    • Performance improvement of tabular cubes and Power BI dashboards
    • Target architecture recommendations for Azure Data Platform Cloud
    SQL Server SSAS DAX Studio Transact-SQL Databricks
  • ESSENDI
    DATA ARCHITECT / PRESALES (HR DATA PLATFORM CSRD)
    HOSPITALITY
    May 2025 - June 2025 (1 month)
    Paris, France
    Design of the target architecture for a cloud-native HR & CSRD Data Platform based on Azure Data Platform, as part of a response to a strategic RFP for an international group.

    Acting as architecture referent and presales Tech Lead, contributing to the definition of the architecture blueprint, the technical roadmap, and the solution costing.

    Tech: Azure Data Factory, ADLS Gen2, Databricks (Spark), Azure SQL Database, Power BI
    Microsoft Power BI Microsoft Azure SQL Server Talend ETL Azure Data Factory
  • Transdev
    Senior Data Consultant
    TRANSPORTATION
    June 2018 - May 2025 (6 years and 11 months)
    Issy-les-Moulineaux, France

    Project #1 – Migration of an Accounting Reporting System to a Modernized Architecture

    Project to modernize the accounting reporting infrastructure by adopting a scalable architecture, ensuring operational continuity, data quality, and user adoption.

    Project #2 – Data Warehouse and Optimization of Purchasing Decisions

    Project to enhance purchasing performance through the implementation of a comprehensive decision-making platform, including a Data Warehouse, datamarts, automated ETL pipelines, and Power BI dashboards, to improve cost and trend analysis.

    Project #3 – Design of a Data Hub for the Transdev Group

    Project to design and deploy a centralized Data Hub for the Transdev Group, to unify and govern heterogeneous data from business systems and operational applications.
    SQL Server Microsoft Power BI Talend ETL AWS Snowflake

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Education

  • Executive DBA
    Ponts Business School
    2026

Certifications

  • PMP
    PMI
    2009
    Project Management

Skill set

Categories