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Juan Martínez GarcíaJM

Juan Martínez García

Business Intelligence & Data Warehouse Specialist

€290/day
Valencia, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Juan

I am a specialist in Business Intelligence and Data Warehousing, with a solid foundation in both technical and business aspects. Thanks to my background in Business Administration and my practical experience, I connect data with decision-making.

🔹 I design and build modern and maintainable data pipelines using tools like Talend, SQL Server, and dbt.
🔹 I develop interactive dashboards in Power BI that allow companies to monitor KPIs and make data-driven decisions.
🔹 I follow best practices in data modeling (star schema), modular architecture with dbt (staging, intermediate, marts), and naming conventions to ensure clarity and performance.
🔹 I also automate processes using Power Automate (Desktop and Cloud), improving operational efficiency.
🔹 Previously, I worked with Angular and .NET, which provides me with a solid foundation in software development and system integration.

I am passionate about transforming data into useful, clean, and actionable assets, especially for growing companies that need intelligent and scalable solutions.
  • Spanish

    Native or bilingual

  • English

    Fluent

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

Experience

  • Altius, S.A.
    Analytics Engineer
    July 2023 - Today (2 years and 11 months)
    Madrid, Spain
    • Development of a data warehouse, data governance, and dashboard creation using ETL Talend, SqlServer, DBT, and PowerBI.
    ETL Microsoft Power BI Talend SQL Server DBT
  • GRP
    Full Stack Developer
    August 2022 - July 2023 (11 months)
    • Development of web and desktop applications with .NET and WPF
    • SQL Database Management
    • Hardware and Software Implementation at clients

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Education

  • Bootcamp FullStack Web Developer + .NET., Development of web pages, digital/multimedia content and computer resources
    Codehouse Academy
    2022
    Bootcamp FullStack Web Developer + .NET., Development of web pages, digital/multimedia content and computer resources
  • Master of Business Administration
    Universidad de Murcia
    2012
    Bachelor's Degree, Business Administration and Management

Skill set (9)

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