Luis Carbonell Gironés's avatar

Luis Carbonell Gironés

Business Intelligence Engineer

About me

Hey👋 my name is Luis; I love working with data and learning about new techniques to store it 📖 , query it 🔍 and gather insights 💡 I am interested in building effective and reliable data pipelines, deep-diving into analyses, and asserting that data is sound and reproducible. For my tasks, I mainly work with Python 🐍 (although R is becoming a staple in the toolbox 🧰 ) using libraries such as Scikit, pandas, and Numpy, but I'm always excited to take a look at new tools and tech. When it comes to storing and querying data, I mainly have experience with relational databases like Postgres and MySQL, and data warehouses like BigQuery or Snowflake. In ETL pipelines, I've worked with Airbyte and DBT with a focus on designing incremental models⏳ Currently, I am also exploring tools like Dagster, dlt and SQLMesh for building a stack aimed towards incremental modeling with frequent updates, where timing is an important factor. I am always happy to connect with anyone and explore mutual opportunities. Looking forward to connecting!

Tools and technologies

Experience

BitBurst GmbH

Associate Business Intelligence Enginner

02.2025 - Present
  • Optimized models with a star schema, maintaining backward compatibility via views for seamless user experience.

  • 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.

  • Designed a new ELT pipeline using Dagster, dltHub and SQLMesh

BI Data Analytics

12.2023 - 02.2025
  • Developed robust ELT using Airbyte and DBT, significantly improving data quality.

  • Implemented version control for DBT models and ELT processes with Git, enhancing collaboration.

  • Analyzed internal metrics to identify fraud patterns, increasing detection accuracy with new statistical rules.

  • Created interactive dashboards with Metabase/Sigma, facilitating data-driven decision-making across teams.

Allianz Kunde und Markt GmbH

Working Student

08.2023 - 12.2023
  • Supported team in gathering customer satisfaction insights and developing internal dashboards for visualization.

  • Conducted data preprocessing, knowledge mining, statistical analyses, and communicated insights to stakeholders.