Luis Carbonell Gironés's avatar

Luis Carbonell Gironés

Business Intelligence Engineer

About me

I'm a BI Engineer passionate about data and its different possibilities. From transforming raw data into usable datasets and documenting them, to analysing its usage to optimise queries. Always eager to learn and incorporate good practices into my daily work, I have already incorporated concepts from Software Engineering such as CI/CD into my data workflows to improve daily work and design more robust pipelines.

Experience

BitBurst GmbH

Associate Business Intelligence Engineer

02.2025 - Present
  • Reduced pipeline execution costs by 34% by transforming DBT models into incremental versions.

  • Optimized DBT models with a star schema, maintaining backward compatibility via views for seamless user experience.

  • Lowered storage costs by ∼ 13% by eliminating duplicate datasets and converting them into views, streamlining data management.

  • Introduced CI/CD pipelines to ensure code quality, model testing and seamless deployment of changes.

  • Documented models and data sources including lineage and metadata propagation.

Business Intelligence Data Analytics Working Student

12.2023 - 02.2025
  • Built ETL pipelines with Airbyte and DBT, enhancing data quality and reliability.

  • Version-controlled DBT models and ETL pipelines using GitHub, ensuring seamless collaboration and change tracking.

  • Identified fraud patterns by analyzing internal metrics and applying statistical methods, enhancing detection accuracy with new rules.

  • Developed interactive dashboards with Metabase/Sigma, providing actionable insights and empowering data-driven decisions.

Allianz Kunde & Markt GmbH

Working Student

08.2023 - 11.2023
  • Created KPI dashboards to visualize customer satisfaction data, driving cross-departmental data-driven decisions.

  • Preprocessed data and applied knowledge mining and statistical analyses, providing stakeholders with actionable insights for strategic decisions.