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Isaias G, ETL and Data Engineer
Isaias G
🇧🇬Bulgaria (UTC+02:00)
Created AtUpstaffer since July, 2026
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Isaias G — ETL and Data Engineer

Expertise in Data Engineer (6.0 yr.), AI and Machine Learning (2.0 yr.), Business Intelligence (BI) (2.0 yr.), Data Extraction and ETL (5.0 yr.).

 Last verified on July, 2026
English C1

Core Skills

Databricks
Databricks
5 yr.
Azure Data Factory
Azure Data Factory
2 yr.
AWS Glue
AWS Glue
PySpark
PySpark
2 yr.
SQL
SQL

Bio Summary

  • Over 6 years of experience with high-volume data platforms (PySpark, Databricks), and orchestrating pipelines with Apache Airflow and Azure Data Factory. AWS and Azure cloud services for ELT processes.
  • Delivered consulting services for Banking (Santander), Retail (Mango, Zalando), Insurance (Reale Seguros), and Industry (Telefónica, Técnicas Reunidas) on Databricks Lakehouse adoption and data platform strategy.
  • Strong background in ML model industrialization, ETL processes, and optimization of Spark configurations
  • Hosted the first Databricks User Group Meetup in Madrid and attended the DAIS 2025 in San Francisco.

Technical Skills

Programming Languages Python
AI & Machine Learning AI, Azure AI, Machine Learning Models
Java Frameworks Apache Spark
Scala Frameworks Apache Spark
Python Frameworks Flask
Salesforce Ecosystem Google Ads
Social Media Merketing Google Ads
Python Libraries and Tools PySpark, pytest
Data Analysis and Visualization Technologies Apache Airflow, Apache Spark, Azure Data Factory, Databricks, ELT, ETL, Lakehouse, ML, Talend
Databases & Management Systems / ORM Apache Spark, AWS Redshift, MySQL, PostgreSQL, SQL, SQLite, SSIS
UI Frameworks, Libraries, and Browsers HTML5
Cloud Platforms, Services & Computing AWS, Azure
Amazon Web Services AWS DMS, AWS Glue, AWS Redshift, AWS S3
Azure Cloud Services Azure AI, Azure Blueprints, Azure Cloud Services, Azure Data Factory, Databricks
Industry Domain Experience Banking, Marketing, retail
UI/UX/Wireframing 3D Modelling
SDK / API and Integrations API, OpenAPI, RESTful API
Deployment, CI/CD & Administration CI/CD
Virtualization, Containers and Orchestration Docker, Terraform, VmWare
Version Control Nexus
Methodologies, Paradigms and Patterns OOP, REST
QA, Test Automation, Security pytest
Third Party Tools / IDEs / SDK / Services Web Services
Other Technical Skills Blender 3D, Data Management, Data Platform, Generative AI, Liaison, Maya, SAN, Substance painter, Unreal Engine, Virtual Reality

Work Experience

Data Platform Engineer - Banking, Retail, and Insurance Clients.

Duration: December 2025 - Present (8 months)

Summary:

  • Lead and Data Platform Engineer delivering end-to-end data solutions for banking, retail, and insurance clients
  • Focus on scalable cloud architectures on AWS emphasizing reliability, cost efficiency, and governance
  • Build and operate high-volume data platforms, industrialize ML models, and develop Python APIs

Responsibilities:

  • Translate functional and technical requirements into scalable cloud architectures on AWS.
  • Build and operate high-volume data platforms using PySpark and Databricks.
  • Industrialize ML models from experimentation to production.
  • Develop robust Python APIs to expose data and services.
  • Design and automate resilient pipelines with Apache Airflow and Azure Data Factory.
  • Implement Infrastructure as Code using Terraform for repeatable, auditable deployments.

Technologies: AWS, PySpark, Databricks, Python, Apache Airflow, Azure Data Factory, Terraform

Databricks Lead - Latorre Digital Nexus

Duration: March 2024 - December 2025 (1 year 10 month)

Summary:

  • Provided consulting services with expertise in Databricks and cloud solutions for clients in banking, retail, and insurance sectors
  • Delivered cloud solutions on AWS and Azure with a focus on data management and ML model industrialization

Responsibilities:

  • Gather technical and functional requirements.
  • Design and implement cloud solutions on AWS and Azure.
  • Manage large volumes of data using PySpark.
  • Orchestrate data pipelines with Apache Airflow and Azure Data Factory.
  • Industrialize machine learning models.
  • Develop Python APIs.
  • Implement Infrastructure as Code with Terraform.

Technologies: Databricks, AWS, Azure, PySpark, Apache Airflow, Azure Data Factory, Terraform, Python

Lead Senior Data Engineer - Santander Bank (Anti-Money Laundering and Terrorism Financing Prevention Project)

Duration: March 2023 - May 2025 (2 years 3 months)

Summary:

  • Development of a project focused on preventing money laundering and terrorism financing in banking and cloud environments
  • Managed large data volumes and optimized Spark configurations

Responsibilities:

  • Develop solutions in banking and cloud environments.
  • Handle large volumes of data.
  • Optimize Spark resource configurations.
  • Use Thetaray technology.
  • Manage releases.
  • Act as liaison between Architecture and technical teams.
  • Manage and supervise developers.
  • Participate in international projects.

Technologies: Spark, Thetaray

Data Engineer - Telefónica

Duration: June 2022 - March 2023 (10 months)

Summary: Developed an API to manage company product certificates and their renewals using RESTful services and containerized applications.

Responsibilities:

  • Develop API using REST, Python, Flask, AIRFLOW, OpenAPI, and PostgreSQL.
  • Use Docker for container management.
  • Review and control code quality with tests (Pytest), code coverage, and documentation.
  • Manage and create ETLs with Python for data cleaning.

Technologies: Python, Flask, AIRFLOW, OpenAPI, PostgreSQL, Docker, Pytest

Desarrollador Python - Laboratorio GL (Database Management, Marketing Campaigns, and Web Development)

Duration: October 2018 - June 2022 (3 years 9 months)

Summary:

  • Developed and managed databases, conducted marketing campaigns, maintained servers, and developed websites
  • Used virtual machines to address compatibility issues with legacy systems

Responsibilities:

  • Develop and manage databases using Python, MySQL, and SQLite.
  • Conduct marketing campaigns with Google Adwords for client acquisition.
  • Create and maintain servers.
  • Design, develop, and maintain websites in HTML5.
  • Use VMWare virtual machines to resolve compatibility issues with obsolete systems.

Technologies: Python, MySQL, SQLite, Google Adwords, HTML5, VMWare

Programador y desarrollador - Viar Warfare

Duration: September 2017 - October 2018 (1 year 2 months)

Summary: Developed object-oriented programming in Blueprint and created virtual reality scenarios using Unreal Engine 4 and 3D modeling tools.

Responsibilities:

  • Program in Blueprint (object-oriented programming).
  • Use Unreal Engine 4 for development.
  • Create 3D models using 3D Studio, Blender, Maya, and Substance Painter.
  • Create virtual reality scenarios.

Technologies: Blueprint, Unreal Engine 4, 3D Studio, Blender, Maya, Substance Painter

Certification

  • Databricks Certified Data Analyst Associate
    June 2025
    Databricks - Id 149012350 - Credential
  • Databricks Certified Data Engineer Professional
    January 2025
    Databricks - Id 131115630 - Credential
  • Academy Accreditation - AWS Databricks Platform Architect
    January 2025
    Databricks - Id 130242046 - Credential
  • Academy Accreditation - Generative AI Fundamentals
    January 2025
    Databricks - Id 129648581 - Credential
  • Academy Accreditation - Databricks Fundamentals
    January 2025
    Databricks - Id 129702130 - Credential
  • Databricks Certified Data Engineer Associate
    December 2024
    Databricks - Id 124833306 - Credential
  • Databricks Certified Associate Developer For Apache Spark 3.0
    October 2024
    Databricks - Id 117636075 - Credential
  • Platform Administrator
    September 2024
    Databricks - Id 116923868 - Credential
  • Apache Airflow Fundamentals
    June 2024
    Astronomer - Id 88339373 - Credential
  • AWS Certified Cloud Practitioner
    November 2023
    Amazon Web Services (AWS) Id 4D0X87Lcvnrq1Twq - Credential
  • Ai-900
    January 2023
    Microsoft Azure AI Fundamentals
  • Dp-900
    October 2022
    Microsoft Azure Data Fundamentals

Education

  • University of Seville
    Bachelor's Degree in Computer Engineering
    2014 – 2018

Other

  • Hosted the first Databricks User Group Meetup in Madrid (link upon request)
  • Attended the DAIS 2025 in San Francisco (link upon request).

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