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👋 Hi there, I'm Gustavo Caldas,

a Data Enthusiast in Data Engineering, ML, and AI

I am a Portuguese living in Madrid, passionate about continuous learning and acquiring new skills. I am fascinated by Machine Learning and the construction of robust databases. I am always looking for new challenges and opportunities to grow and contribute in the technological field. Currently, I am not working due to recovering from a severe accident, but I will start working again in the near future.

AI Python SQL Azure Environment ETL Machine Learning PowerBi ChatGPT

Experience

August 2023 - December 2023

Data Engineer at Nationale-Nederlanden

Madrid, Comunidad de Madrid, Spain

  • Specialist in Data Engineering, with a solid background in software engineering.
  • Construction of a Data Mart, using Microsoft Azure tools such as Azure Data Factory, Databricks, and SQL Management.
  • Committed to technological innovation and business intelligence, optimizing data solutions aligned with the company's strategic goals.
  • Proficient in Databricks, SQL Server, SQL, Python, PowerBI, Data Warehouse, Microsoft Azure, Fabric, and Copilot.
  • Continuously facing challenges, questioning traditional approaches, and advocating for continuous improvement.
September 2022 - September 2023

Data Mining Researcher at IOTECH

Oporto, Portugal

  • Collaborated with IOTECH on the ioCity project, a European Union-funded project focused on transforming urban mobility.
  • Used CRISP-DM and SCRUM methodologies, applying advanced predictive modeling techniques.
  • Performed meticulous data preparation, cleaning, and integration.
  • Integrated gamification principles, designing tasks, missions, and rewards to encourage sustainable behaviors.
  • Developed a real-time seat availability system, improving the user experience.
  • The experience highlighted the importance of collaboration and knowledge expansion in dynamic environments.
  • Contributed to the innovation and future of urban mobility, connecting academic knowledge with real-world applications.

Education

June 2023 - December 2023

Bootcamp in Marketing Data Analytics at Universidad Internacional de La Rioja (UNIR)

  • Dived into the tools of the Spanish market while revisiting some already known ones.
  • Balancing professional commitments, the Bootcamp, and my master's thesis was a gratifying challenge.
  • Mastered skills in linear regression, Machine Learning, and advanced Excel.
  • Data management and analysis, databases with PostgreSQL, Tableau, PowerBI, Data Marts, and ETL with Spark.
  • Conducted research and developed marketing projects using Google Analytics and Marketing Mix Modeling.
  • Created predictive models to improve marketing strategies.
September 2021 - September 2023

Master in Information Systems Engineering at Universidade do Minho

  • Analyzed and designed information systems to solve common challenges.
  • Applied machine learning to create predictive models and business intelligence.
  • Visualized data effectively to facilitate deep analysis.
  • Designed advanced cloud architectures for information systems.
  • Implemented security measures with detection, prevention, and response tools.
  • Explored and applied legal aspects to ensure compliance and technological integration.
September 2018 - September 2021

Bachelor in Information Systems Engineering at Universidade do Minho

  • Mastered fundamentals of computing such as Linear Algebra, Calculus, and Algorithms.
  • Experience with matrix operations and advanced algorithms.
  • Studied Database Management, Object-Oriented Programming, Operating Systems, and Computer Networks.
  • Refined skills in Java and concurrent programming.
  • Specialized in data analysis, distributed systems, and enterprise application deployment.
  • Created robust distributed applications and visualized data effectively.
  • Applied optimization algorithms to engineering problems.
  • Solved real-world challenges, enhancing my technical and problem-solving skills.
  • Used advanced algorithms on real datasets through elective courses.

Certifications

Oracle Cloud Infrastructure 2025 AI Foundations Associate (1Z0-1122-25)

Oracle Cloud AI certification obtained through the Race to Certification 2025. Ver en GitHub

Oracle Cloud Infrastructure 2025 Foundations Associate (1Z0-1085-25)

Oracle Cloud certification obtained through the Race to Certification 2025 challenge. View on GitHub

Big Data and Spark: Data Engineering with Python and PySpark

Certification in data engineering using Python and PySpark for Big Data management. Github

Azure Databricks & Spark For Data Engineers

Real World Project on Formula1 Racing using Azure Databricks, Delta Lake, Unity Catalog, Azure Data Factory Github

GitHub Projects

Azure Data Factory

A set of hands-on exercises using the Azure environment, focusing on Azure Data Factory to efficiently integrate and process data.

Published Articles

Smart Dashboards for Monitoring Occurrences in Smart Cities: A Portuguese Case Study

This article addresses the improvement of intervention requests for the Professional Fire Brigade in Lisbon through the creation of interactive dashboards. The results show that 58% of false alarms are canceled after activating emergency means and 97% of suspended requests are not canceled before the means are dispatched. Occurrence records increase over the years, with peaks on Sundays and in the autumn. More than 50% of occurrences happen outside administrative hours and usually only one vehicle is dispatched.