Hey, I'm Óscar

Data Engineer passionate about tackling complex challenges and driving innovation. Let's create the future together.

Experience

  1. Data Engineer — UC3M & Kairós DS (Madrid, Spain)

    · Designed and implemented end-to-end ETL data pipelines within AWS using Scala, Spark, and Python, processing gigabyte-scale datasets and reducing pipeline execution times by 30%.

    · Orchestrated complex workflows using Apache Airflow, reducing data ingestion failures by 20% through automated retry mechanisms and real-time alerting.

    · Optimized AWS cloud infrastructure costs by 15% through the migration and structuring of historical data lakes on Amazon S3 and Amazon Redshift, utilizing AWS Glue and Athena for data partitioning.

    · Developed interactive Power BI dashboards connected to Athena and Redshift using dbt, reducing query cost and time by 40%.

  2. Martech Engineer — Merkle (Gijón, Spain)

    · Architected multi-platform first-party data collection systems that scaled to process over 15M monthly events across enterprise clients, boosting data accuracy by 25% and unlocking actionable insights for personalized marketing.

    · Implemented user consent and privacy management frameworks adhering to GDPR/CCPA regulations, ensuring 100% compliance across digital assets without compromising web performance.

More experience

Projects

  1. deduction game example
    Deduction Game

    A solver for a local newspaper game
  2. MIMO-OFDM ISAC simulation
    Integrated Sensing and Communication System

    MATLAB-based study of MIMO-OFDM configurations for Integrated Sensing and Communication (ISAC) in 6G networks.
  3. mail and github workflow examplo
    UC3M Job Offers Scraper

    Web scraper that notifies the user when a new offer appers at UC3M website.
  4. antenna design
    Design of a K-Band Antenna Array

    Initial design of a K-band radar hardware operating in the 18–27 GHz range
  5. tfg photo
    MIMO Detection with Deep Learning

    A python project that aplies DL techniques in MIMO communication systems
    6. More projects