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Billal TantawyBT

Billal Tantawy

Data Analyst/ Data Engineer

€770/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Billal

Graduated from a business school with a major in computer science through work-study at IBM, I have been immersed in the world of data since the beginning of my career. I have participated in international projects involving real data challenges. These experiences have allowed me to work with various data processing tools and languages (ingestion, transformation, and restitution) for major clients such as Airbus, L'Oréal, and the Mars Group - Royal Canin.

I also had the opportunity to gain international experience during my projects, working in Istanbul, Abu Dhabi, Bangkok, and Atlanta.

With 8 years of experience (including 3 in apprenticeships), I now wish to put my skills and know-how at the service of a company looking for data professionals to successfully carry out its projects.
  • French

    Native or bilingual

  • English

    Fluent

  • Arabic

    Conversational

Can work on-site
Paris (up to 20km)

Experience

  • Air France
    Data Analyst
    AVIATION AND AEROSPACE
    July 2023 - Today (3 years)
    Tremblay-en-France, France
    Role: Consultant Data Business Analyst
    Context – The Data 'Flight Program' team (AMO) ensures the development of BI reports with the business for decision support (Team of 5 people)

    • Functionally:
    • Gathering requirements from Business teams (Long & Medium haul and Regulation teams).
    • Analyzing user needs and determining data consistency requirements.
    • Defining technical specifications in collaboration with BIG DATA teams (data sources to query, data snapshot frequency...) and validating final datasets.
    • Validating BI reports developed with business teams (workshops, brainstorming, user support)
    • Mentoring a Data Analyst intern

    • Technically:
    • Development of POWER BI reports:
    • Data modeling (star schema) – Database queried: Teradata
    • Power Query, M language for data preparation.
    • Development of business KPIs, visualization, pagination, and intuitive menu.
    • Creation of measures and calculated columns (DAX)
    • Automating report refresh on the server
    • Creation of a Power BI application serving as a report catalog.
    • User rights management (role creation, access)
    • Development of SPOTFIRE reports (SQL

    #
    Microsoft Power BI Teradata SQL TIBCO Spotfire Requirements Gathering
  • Royal Canin
    Data Engineer & Data Analyst
    AGRICULTURE
    November 2021 - Today (4 years and 9 months)
    Bois-Colombes, France
    IBM/ Royal Canin Project

    International project, 100% in English.

    Role: Data Engineer & Analyst within the 'Digital Governance' team

    Context - The 'Digital Governance' team's role is to ensure that digital assets (website, social media, applications, etc.) comply with Mars' policies, codes, and standards. This is a key area for maintaining consumer, customer, and associate trust.

    Achievements:
    ▪ Development of a Pyspark script on Databricks / Azure DevOps to collect data from various sources for reporting needs.
    ▪ Development of a Power BI report to monitor the Royal Canin ecosystem, then other segments.
    ▪ Leading periodic sessions on website vulnerabilities.
    ▪ Working with teams worldwide to help them comply with Mars standards.

    Project Results - Development of an automated dashboard to guide activities, present results to the Business Owner, and take concrete actions.
    Power BI PySpark Microsoft Azure Azure DevOps Azure Databricks
  • L'Oréal
    Data Analyst & Data Engineer
    FASHION AND COSMETICS
    July 2020 - August 2021 (1 year and 2 months)
    Bois-Colombes, France
    Data Engineer & Data Analyst
    IBM/ L'Oréal Project

    International project, 100% in English.

    Context - L'Oréal launched the 'ELIXPEDIA' program, a unique global data catalog. The migration and upgrade were carried out from the old system in place (SAP) to the new one (Elixpedia MDM).

    Achievements:
    ▪ Development of BI reports to monitor activities and data quality (Power Bi, SQL, R...)
    ▪ Execution of reports to monitor the migration / upgrade.
    ▪ Responsible for the Back Office team - 3 people (organization, task allocation, activity monitoring...)

    Project Result - Management of the Data Factory technical team and monitoring of several deployments worldwide.
    Microsoft Power BI SQL Team Management R language

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