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Johan De GrootJD

Johan De Groot

Data Visualisation Analyst/Tableau Developer

€960/day
's-Hertogenbosch, NL
15+ years

Average response time: 1 hour

About Johan

As a data analyst with extensive experience in visualization, insight generation, and technical implementations, I specialize in designing scalable, user-friendly dashboards and building data workflows tailored to the needs of organizations.

My focus is on transforming complex datasets into clear and actionable insights, and I am passionate about empowering users through hands-on training, workshops, and enablement.

With proficiency in SQL, Python, APIs, and ETL tools, I’ve developed and implemented complex data solutions.

My hands-on experience in these areas, combined with close collaboration with data engineers and data scientists, has strengthened my technical expertise and allowed me to apply best practices to improve data efficiency and performance.

Keywords: Tableau · Advanced Interactive Data Visualizations · Data Prep · Design · APIs · Python · ETL Tools · Web Development · Training & Support · Implementation · Online Marketing
  • Dutch

    Native or bilingual

Can work on-site
's-Hertogenbosch (up to 50km), Amsterdam (up to 50km), Arnhem (up to 50km), Eindhoven (up to 50km), Breda (up to 50km)

Experience

  • Antichaos bv
    DATAVISUALISATIE ANALIST / TABLEAU ONTWIKKELAAR
    January 1995 - Today (31 years and 6 months)
    Freelance en interim opdrachten op het gebied van datavisualisatie, dashboardontwikkeling, data-analyse en training. Ontwikkeling van dashboards en dataproducten (o.a. in Tableau), koppeling van uiteenlopende databronnen en APIs, en het opzetten van datastructuren en rapportages voor diverse opdrachtgevers. Ontwikkelen van creative nieuwe dataprodu prototypes en interne tools.
    Tableau software Data analyse Data visualisation SQL Python
  • POSTCODE LOTTERY GROUP
    Tableau Analist
    ENTERTAINMENT AND LEISURE
    June 2024 - December 2024 (6 months)
    Ontwikkelen van nieuwe Tableau-dashboards voor de diverse internationale merken op basis van de behoeften van stakeholders, en het samenvoegen van bestaande dashboards tot een nieuwe standaard.
    Tableau software Data analysis
  • MINISTERIE VAN BUITENLANDS ZAKEN
    Business Analist / Tableau Consultant
    PUBLIC SECTOR
    January 2018 - January 2024 (6 years)
    Den Haag, Netherlands
    Deze dataprodukten worden gebruikt voor rapportages, besluitvorming, maar ook als referentiedata tijdens officiële staatsbezoeken van de Nederlandse koning.
    Tableau software Data analysis

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Education

  • Higher Technical Education
    Rens & Rens
    1995

Skill set

Categories