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Tommy NguyenTN

Tommy Nguyen

Expert BI

€778/day
11 projects
Chilly-Mazarin, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Tommy

Hello!
I am an expert in the field of business intelligence. My 15 years of professional experience allow me to offer you:

- Solid experience in development, modeling, optimization, and project management for the implementation of business intelligence systems of all sizes across various sectors and technologies, from data sources to visualizations, including data processing.

- Support for various data stakeholders on functional and technical aspects, particularly regarding the optimization of data processing and modeling.
  • French

    Native or bilingual

  • English

    Native or bilingual

Can work on-site
Chilly-Mazarin (up to 50km), Paris (up to 20km)

Experience

  • GRDF
    BI Expert
    ENERGY AND UTILITIES
    February 2022 - Today (4 years and 4 months)
    Missions as BI expert
    - Analysis and migration of old BI systems to modernize them towards sustainable solutions
    - Analysis of existing BI and proposal of modeling around DataVault 2.0 concepts
    - Architecture and implementation of the Data Analytics Platform on the cloud (Snowflake and IDMC)
    - Development of automated engines for data ingestion and the Datavault model
    - Support for the implementation of functional business objects aiming for a Data Mesh organization
    - Development of a set of SQL administration procedures to automate environment management.
    - Development of Python UDTF procedures to manage the ingestion of archived and encrypted files
    - Support for the implementation of business objects

    Technical environment
    • Snowflake, dbt
    • Kafka
    • AWS
    • Python
    • Informatica Cloud
    • Oracle
    • Power BI
    Snowflake Informatica Datavault Business intelligence Microsoft Power BI
  • RATP
    BI Techno-Functional Expert
    TRANSPORTATION
    December 2019 - February 2022 (2 years and 2 months)
    Noisy-le-Grand, France
    Renewal of the ETOILE Economic Infocenter (Purchasing, Sales, Stock, and Accounting Data Warehouse)

    Missions as technical referent
    • Architecture definition
    • Environment preparation
    • Detailed modeling and design
    • Technical steering
    • Techno-functional referent for the existing system
    • Development (all layers)

    Technical environment
    • DBMS: Oracle 18c
    • Modeling: Data Vault
    • ETL: Datastage 11.7
    • Reporting: IBM Cognos 11.1.7
    • Servers: UNIX
    Datavault Cognos Datastage Oracle Database Informatica PowerCenter
  • RATP
    Technical Referent
    TRANSPORTATION
    May 2017 - December 2019 (2 years and 7 months)
    Neuilly-Plaisance, France
    Investment & Subsidy Information System (PEPITE)

    Missions as technical referent
    • Architecture definition
    • Detailed modeling and design
    • Technical acceptance
    • Design of the automatic feed framework

    Technical environment
    • DBMS: Oracle 11g
    • Modeling: Data Vault
    • ETL: Powercenter 9.5.1
    • Reporting: OBIEE 10g
    IS Architecture Informatica PowerCenter Datavault ETL OBIEE

Reviews

5.0

Out of 1 rating

N

Nicolas

GRDF DSI Gestions seules

Reviewed on 4/21/2022

Remarkable skill and undeniable human quality

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Education

  • Master MIAGE
    Université Paris-Sud XI
    2012

Certifications

  • Certified Data Vault 2.0 Practitioner
    DataVaultAlliance
    2019

Skill set

Categories