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Jaime B.JB

Jaime B.

Supermalter

Big Data Engineer

€450/day
5 projects
Madrid, ES
8-15 years

Average response time: 1 hour

About Jaime

Jaime B. is a seasoned professional in the field of data engineering, currently offering Freelance Services.

Degree in Information Systems Engineering, Master’s in Business Consulting, Master’s in Big Data & Analytics, AWS Certified Data Analytics.

He boasts extensive experience in data management, including data analysis, database design, and data modeling.

His strong technical acumen and leadership skills have been instrumental in driving data-related strategies and initiatives at companies like Minsait, BMAT, Paradigma Digital, Ryanair, Fintonic, Management Solutions, Telecor and Informática El Corte Inglés S.A.


Jaime has held several positions in data engineering and IT, honing his skills in ETLs, cloud solutions (AWS, GCP), as well as in using various data management tools.


His expertise extends to areas such as Big Data, SQL, Scala and Python among others. Jaime's commitment to excellence and continuous learning has consistently led to his success in the rapidly evolving field of data engineering.
  • Spanish

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Novartis España
    Malt logoOn Malt
    Data Engineer
    PHARMACEUTICALS INDUSTRY
    October 2025 - December 2025 (2 months)
    Madrid, Spain

    * Data Source Integration : Acquiring and consolidating data from various sources, including Snowflake databases and flat files stored in S3 buckets. * Data Transformation : Developing ETL (Extract, Transform, Load) processes to clean, transform, and prepare the data as input for the APIs.

    * Efficient Data Storage: Storing the transformed data back int Snowflake in an optimized and accessible manner.

    * Pipeline Automation : Designing and implementing automated data pipelines to ensure scalable and efficient data flows from source to destination.

    * Backend API development and deployment : Definition and development of endpoints using FastAPI and deployment within Novartis services.

    * Integration of backend API : with vendor developed front-end.



    Deliverables: * Data architecture design and pipeline planning * Development of data source integration (Snowflake, S3) * Implementation of ETL processes and data quality validation * Pipeline automation and performance testing * Backend python FastAPI code * Technical documentation and knowledge transfer

    Required Skills and Experience: * Strong experience in Data Engineering * Strong experience in Software Engineering * Proficiency with tools such as Snowflake, AWS S3, and ETL frameworks (e.g., dbt, Airflow) * Experience
    automating data pipelines * Proficiency in Python and SQL
    Python Snowflake FastAPI SQL Jenkins
  • Novartis España
    Malt logoOn Malt
    Data Engineer
    PHARMACEUTICALS INDUSTRY
    October 2024 - December 2025 (1 year and 2 months)
    Madrid, España

    Servicios Técnicos: * Diseño e Implementación de Pipelines en Snowflake Creación de pipelines de ingesta, transformación y carga de datos utilizando SQL y Python (PySpark). Integración con AWS EMR y Glue para orquestación y procesamiento de datos a gran escala. * Optimización de Procesos ETL Refactorización de los ETLs actuales para mejorar su rendimiento y escalabilidad. Implementación de CI/CD con Git y Jenkins para automatizar el despliegue y la integración continua de los pipelines. * Validación y Calidad de los Datos Desarrollo de mecanismos de validación en código y procedimientos dentro de Snowflake para asegurar la consistencia de los datos. Configuración de modelos de datos en Snowflake optimizados para alimentar dashboards interactivos en Power BI.

    Python Big Data Análisis de datos Snowflake Data Engineer
  • Minsait
    Senior Data Engineer
    ENERGY AND UTILITIES
    March 2022 - March 2024 (2 years)
    Madrid, Spain
    - Amazon Web Services (AWS). Data engineering for Energy client specialized in renewable energies (solar, wind), gas, trading and commercialization. Glue, Terraform, Pyspark, SQL Server, MongoDB, Snowflake.
    - Google Cloud Platform (GCP). Data engineering for Telco client. Bigquery, Composer (Airflow), Datafusion, Cloud Storage.
    AWS SQL Snowflake Google Cloud Platform (GCP) MongoDB

Reviews

5,0

Out of 3 ratings

OriolO

Oriol

Referente tecnico del equipo con buenas practicas y comunicacion - Novartis España

Several months project

-

Reviewed on 19/12/2025

Data Engineer con mucha experiencia que no solo ayuda a apagar fuegos y sacar proyectos adelante, sino que siempre va un paso más allá. Aporta ideas, propone mejoras y empuja buenas prácticas que han ayudado a ordenar y profesionalizar tanto al equipo como a la plataforma de datos. Es de las personas que elevan el nivel general, hacen que las cosas funcionen mejor y con las que da gusto trabajar.
OriolO

Oriol

Novartis España

Several months project

-

Reviewed on 17/09/2025

Jaime ha sido una incorporación excepcional al equipo. Su trabajo como Data Engineer destaca por una calidad técnica sobresaliente, una gran atención al detalle y una gran capacidad para adaptarse a los requerimientos del negocio. Desde el inicio del proyecto, se ha convertido en un referente en SQL y en metodologías de trabajo eficientes, aportando soluciones robustas y escalables. Además de cumplir con los objetivos técnicos, Jaime ha contribuido activamente a establecer estándares de calidad que ahora forman parte de nuestras mejores prácticas. Gracias a su enfoque metódico y su compromiso con la fiabilidad de los datos, hemos podido entregar información precisa y de confianza a nuestros clientes. Trabajar con él ha sido un verdadero impulso para el equipo, y sin duda volveríamos a contar con él en futuros proyectos. Altamente recomendable.

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Education

  • Master in Big Data & Analytics, Big Data
    U-tad
    2017
    Master in Big Data & Analytics, Big Data
  • Master in Business Consulting, Business Consulting
    Universidad Pontificia Comillas
    2016
    Master in Business Consulting, Business Consulting

Certifications

Skill set

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