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Miguel User

@miguelsoler

Message

I build and optimize large-scale banking data pipelines with PySpark, Scala, AWS, and Databricks.

Spain

Message

At Nter Tech Services, I migrate, refactor, and debug banking data processes for Banco Santander, moving more than 200 legacy Informatica PowerCenter workflows to AWS EMR and S3 using PySpark and Airflow.

I also build practical Spark tooling from scratch: an event-log analytics suite for interactive reporting and a Scala-based data quality engine with parallel JDBC ingestion from PostgreSQL, Docker containerization, and performance-focused Spark optimization.

Experience

Work history, roles, and key accomplishments

Current

Big Data Engineer

Current

Nter Tech Services

Sep 2025 - Present (1 year)

Migrated over 200 legacy processes from Informatica PowerCenter to AWS using PySpark and Airflow. Developed an analytics suite for Apache Spark and a data quality engine in Scala.

PySpark Scala AWS EMR S3 Airflow Apache Spark Informatica PowerCenter PostgreSQL Docker Data Quality ETL ELT

Education

Degrees, certifications, and relevant coursework

University of Jaén

B.Eng., Computer Engineering

2020 - 2025

Activities and societies: Erasmus+ programme at University of Maribor, coursework in English.

B.Eng. in Computer Engineering, including a full academic year at the University of Maribor (Slovenia) under the Erasmus+ programme with coursework entirely in English.