Maria Alexandra Ramalho De Oliveira

Experience

• 

  INESC Technology and Science - Associate Laboratory

  Mar 2019 - Jan 2021

  Data Scientist

  I am an experienced data scientist with a proven track record in the energy industry, specifically with E-Redes Portugal, where I focused on predictive modeling for failure analysis of primary energy assets. My technical expertise includes using PySpark in Databricks for robust data processing and modeling tasks, where I implemented survival models and XGBoost for accurate predictions.Together with a team, I have designed, implemented, and documented end-to-end data pipelines within Databricks, ensuring seamless data flow and operational efficiency. My role involved close collaboration with cross-functional teams, enabling me to bridge the gap between technical and non-technical stakeholders by effectively communicating complex insights in an understandable manner. Show less

• 

  Faculdade de Engenharia da Universidade do Porto

  Apr 2021 - now

  As a dedicated data scientist with a PhD focused on anomaly detection and time-series forecasting, I specialize in optimizing high-yield industrial processes to minimize defects. My collaboration with BA Glass, Portugal's largest glass container manufacturer, involved working closely with both executives and operators to define project goals and translate business objectives into actionable, data-driven strategies.I led an end-to-end machine learning project encompassing all phases—from business and data understanding, data gathering, and cleaning, to modeling and productization. My efforts culminated in the development of a sophisticated monitoring tool to track key performance indicators and identify operational anomalies. Additionally, I created predictive models for time-series data to anticipate deviations and recommended system adjustments to enhance operational efficiency. Show less

  • PhD Candidate in Machine Learning

    Sept 2019 - now

  • Invited Assistant

    Apr 2021 - now
• 

  Porto Executive Academy

  Mar 2023 - now

  I teach fundamental principles of Machine Learning Models with a specific focus on their applications for predictive purposes. I instruct company employees in Python and SQL programming, covering programming basics.

  • Postgraduate professor in Business Analytics

    Jan 2022 - now

  • Programming Trainer

    Mar 2023 - now
• 

  LTPlabs

  Sept 2024 - Dec 2024

  External Consultant

  As an External Collaborator at LTP Labs, I worked on a People Analytics project, developing predictive models to assess collaborator performance and progression for a major Portuguese beverage company.

• 

  Sword Health

  Jan 2025 - now

  Machine Learning Engineer