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Joel NguenaJN

Joel Nguena

AI and Data Solutions Architect

On-demand
Namur, BE
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Joel

I am an IT Project Manager and Data Solution Architect, with over 10 years of experience in designing business intelligence architectures and managing complex projects. Recognized expert in Microsoft BI, Power BI, and Microsoft Fabric, I have supported large public and private organizations (Finance, Insurance, Utilities, Telecoms) in their digital transformation projects, migration to SAP S/4HANA, and modernization of their data systems.
With solid expertise in data governance, cloud (Azure), ERP/CRM integration, and team management, I combine strategic vision with operational capability. As a trainer and evangelist for BI solutions, I enjoy sharing knowledge and helping organizations become more autonomous and performant through data.
  • French

    Native or bilingual

  • English

    Fluent

  • Italian

    Fluent

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

Experience

  • Entreprise ORES
    Data Architect
    July 2024 - Today (1 year and 11 months)
    Tasks Context: Migration from SAP ECC to SAP S/4HANA and from BusinessObjects to Microsoft Fabric.

    Technologies: Microsoft Azure/Fabric/PowerBI, Sparx, Azure DevOps, SAP BO/DS, SAP S/4HANA, Oracle, BusinessObjects.
    • Reconstruction of AS-IS architecture and proposal of the To BE architecture
    • BPMN analysis and identification of processes impacted by the ECC to S/4 Hana transition
    • Definition of a transition and migration strategy
    • Definition of the post go-live S/4 Hana retention strategy
    • Identification of impacted extractors and development of BI data lineage
    • Analysis of impact on SAP Data Services (SAP DS) and BW flows
    • Evaluation of impacts on Data Warehouses and Data Marts
    • Analysis of impacts on BusinessObjects Universes and Reports
    • Development of a technological decision tree (Embedded analytics-BO Microsoft Fabric)
    • Medallion architecture for the new Microsoft Fabric BI environment (Bronze, Silver, Gold)
    • Scoping and development of the plan architecture and the DAD (Data Architecture Document)
    • Validation of the DAT (Technical Architecture Document) in collaboration with Cloud Architect and DevOps
    • Management and monitoring of the S/4 Hana migration and BW decommissioning
  • Entreprise Federal Public Service Finance
    Project Manager and Data Solution Architect BI
    April 2022 - July 2024 (2 years and 3 months)
    • Planning of IT projects (objectives, scope, stakeholders, schedule, milestones, business case, dependencies, risks.)
    • Organization of kick-offs and writing of activity reports.
    • Analysis of data needs and existing reporting and their integration into the Customs Data vision.
    • Design and deployment of the new data architecture for key users, end users, data miners, data scientists, data analysts.
    • Data mart modeling and implementation of data governance and security strategies.
    • Management of migration projects for existing reports to the new data platform.
    • Validation of technical and functional proposals in coordination with Privacy.
    • Implementation of a Global Observation Center for monitoring Data infrastructures.
    • Team management, workload evaluation, unblocking issues.
  • Entreprise BPCE Natixis Assurance
    BI Solution Architect
    June 2020 - February 2022 (1 year and 8 months)
    MyCerc, project to track the number of cases processed by Banque Populaire and Caisse d'Epargne agencies as part of the Natixis merger.

    Technologies: Oracle 12c, MSBI, Azure Databricks, Azure Analysis Services, SSDT, Power BI, Jira, Confluence, Agile Scrum, Informatica.
    • Review of functional and solution architecture
    • Re-modeling of the Ralph Kimball Data Warehouse (Bus Matrix, data assessment, KPI dictionaries)
    • Supervision of the implementation of ETL/ELT data pipelines
    • Implementation of data governance around the Power BI group vision
    • Development of Power BI reports for the executive committee of the Life Insurance business (CDMAP)
    • Evangelization of Power BI within CERC and training of key users on Power BI
    • Level 3 Power BI support and bug fixing
    • Facilitation of the Power BI club and the best practices page.

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