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Alejandro Perez BallestaAP

Alejandro Perez Ballesta

Power BI, DAX, and Power Query Specialist

€350/day
Murcia, ES
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alejandro

Power BI consultant and developer with experience in DAX, Power Query, and advanced Excel (VBA, Power Pivot, Power Query).
I specialize in the entire analytics cycle: from data extraction, transformation, and loading (ETL) to modeling, analysis, and interactive visualization.

My services include:

Creation of complete ETL and optimized data models.

Development of advanced measures and calculations in DAX.

Design of interactive dashboards from scratch, tailored to your business objectives.

Data analysis and development of conclusions for decision-making.

Automation of reports and processes with Excel and VBA.

My approach combines technical rigor and a consultative vision, ensuring that each project turns data into real value.
If you are looking for a freelancer capable of taking your project from the data source to actionable insights, I can help you transform your data into strategic decisions.
  • Spanish

    Native or bilingual

  • English

    Basic

Remote only
Primarily works remotely

Experience

  • NTT Data Spain
    Center Developer
    CONSULTING AND AUDITS
    March 2025 - Today (1 year and 3 months)
    Murcia, Spain
    I turn data into insights with tailor-made Business Intelligence solutions. Expert in Power BI and advanced Excel, I develop dashboards and automations that save time and improve decision-making.
    Microsoft Power BI Power BI DAX Microsoft Power Query Power Pivot Microsoft Excel
  • I.S.G.F. Informes comerciales
    Reporting
    TELECOMMUNICATIONS
    July 2018 - March 2025 (6 years and 8 months)
    Murcia, Spain
    Accounting and data display for sales agents, performing ETL tasks throughout the process, moving from raw data to final reports.
    Microsoft Excel VBA Microsoft Power BI Power Pivot Power Query

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Education

  • Science Baccalaureate
    IES Alcantara
    2000

Skill set (34)

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