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Rafael Vera Marañón Senior Data Engineer & Data Architect

About

Data engineering and architecture with a practical delivery mindset.

I am a data engineer and data architect based in Málaga, working remotely on cloud data platforms and analytics systems. My recent roles have focused on Azure, Databricks, Microsoft Fabric, PySpark, Synapse, Data Factory, Delta Lake, Unity Catalog, MongoDB and Power BI semantic models.

I have worked across platform engineering, ETL and ELT delivery, metadata-driven architecture, data virtualization, secure connectivity patterns, streaming and analytics enablement. My background also includes software engineering, API development, identity and access management, process analytics and technical delivery in international environments.

I prefer architecture that can be explained, operated and evolved. That means clear data layers, explicit ownership, automated delivery where it reduces risk, and technical decisions that remain understandable after the first release.

Experience

Recent roles and delivery context

2026/01 - Present

Data Engineer & Architect

Capgemini

Málaga, Spain · Remote

PySpark, Synapse, Microsoft Fabric and migration work. Data platform engineering, metadata-driven system evolution, Databricks platform solutions and MongoDB.

SparkPythonAzureDatabricksMicrosoft FabricMongoDBAirflowAzure DevOps

2025/09 - 2026/01

Data Engineer & Architect

Aszendit Tech / SARIA Group

Germany · Remote

Databricks ETL on Delta Lake, Unity Catalog and ADLS Gen2, using Synapse Link, Autoloader, Azure DevOps CI/CD, DataM8/Jinja, Power BI semantic models and ADF orchestration.

PySparkSQLDatabricksDelta LakeUnity CatalogADFPower BIAzure DevOps

2024/08 - 2025/09

Data Engineer & Architect

Minsait / Indra

Málaga, Spain · Remote

Concurrent PySpark and Scala projects around Synapse migration, audit data, environmental integration and enterprise data virtualization.

SparkPythonScalaAzure Data LakeDatabricksData FactorySynapseDenodo

2024/05 - 2024/08

Data Engineer

Hiberus

Málaga, Spain · Remote

ETL pipeline development with PySpark and cloud data services across Azure and AWS.

PySparkAzure Data Lake Gen2DatabricksData FactorySynapseAWS S3GlueAthena

2023/09 - 2024/03

Software Security Development Analyst

Santander Digital Services

Málaga, Spain

Software and security work around APIs, OAuth 2.0, identity and access management, with support for data engineering patterns including Kafka, Spark, Airflow and pipelines.

JavaSpring BootKafkaOAuth 2.0IAMAirflowSpark