About David
- Spark job optimization and performance tuning
- Batch ETL pipeline development
- Workflow orchestration with Airflow
- Big Data environment migrations
- Distributed processing and scalability
Spanish
Native or bilingual
English
Conversational
Experience
- BOSONIT S.L.Data EngineerBANKING AND INSURANCEJanuary 2022 - Today (4 years and 5 months)Madrid, SpainDesarrollo, mantenimiento y evolución de pipelines ETL para el procesamiento de mensajes de pago (SWIFT, ISO 20022, SEPA, ACH) Procesamiento batch de datos desde capa landing (S3) hasta capa common, aplicando validaciones técnicas y funcionales Normalización de múltiples fuentes de datos en un modelo común para su posterior explotación Optimización de jobs Spark reduciendo tiempos de ejecución de varias horas a minutos mediante mejoras en particionado, configuración y lógica de procesamiento la de procesos
- BINAIABig Data Engineering MentorEDUCATION AND E-LEARNINGJuly 2023 - Today (2 years and 11 months)Madrid, Spain• Mentoring new Big Data trainees, providing guidance on both theoretical and practical aspects of Big Data technologies.• Conduct bi-weekly follow-ups to ensure learning progress. The mentorship program begins with foundational knowledge in Hadoop, HDFS, Hive, Apache Spark, Scala/Python, followed by practical ETL simulations and hands-on experience with Apache Airflow for building and orchestrating data pipelines.
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Education
- Grado SuperiorMEDAC2022Grado Superior
- Certified Associate Developer for Apache Spark 3.0DatabricksCertified Associate Developer for Apache Spark 3.0