Fernández Román, Joel

Fernández Román, Joel

Data Scientist | Data Engineer | Software Developer

I work with Python on data science and machine learning projects, mainly focusing on data preprocessing, feature engineering, and model development.
I’m motivated by real-world applications where data can lead to meaningful insights or impact.

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Location
Girona, Catalunya, Spain,
Email
Phone
+34 611 482 843
Website
https://joelfernandezroman.github.io/
LinkedIn
Joel Fernández Román

Experience

– present

Data Engineer at MiceLab - Universitat de Girona

Data engineering and software development in the MiceLab research group. Two main projects were developed and presented as part of my Master’s Thesis.

Highlights

  • Designed and developed a modular Python library to support research workflows with tools for preprocessing, visualization, and report generation.
  • Led the development of a data ingestion framework to standardize heterogeneous diabetes-related datasets into a unified structure for consistent analysis.

–

Junior Data Scientist at mjn-neuro

Software development in Python, focused on data analysis and training of artificial intelligence algorithms.

Highlights

  • Developed a GUI application for the VISOR Project, handling real-time brain signal input from a wearable device.
  • Algorithm developer in SERAS, focused on real-time evaluation.

Education

–

Master's Degree in Data Science and Artificial Intelligence
  from Universitat de Girona

Courses

  • Machine Learning (9.1) | Data Acquisition & Preparation (9.5)

–

Bachelor's Degree in Computer Science
  from Universitat de Girona

Courses

  • My Bachelor's Thesis, titled 'Collection and Analysis of Financial Information for Stock Market Performance Prediction,' received a grade of 9.49.

Languages

Spanish
Fluency: Native
English
Fluency: Intermediate (B2)

Skills

Python
Level: Master
Keywords:
  • Software architecture
  • Software design patterns
  • NumPy
  • Pandas
  • PyTest
  • Jupyter Notebook
Machine Learning
Level: Master
Keywords:
  • Scikit-learn
  • XGBoost
  • TensorFlow
  • Model Evaluation
  • Hyperparameter Tuning
  • Supervised Learning
  • Unsupervised Learning
Data Engineering
Level: Master
Keywords:
  • ETL
  • Data Modeling
  • Flask
  • Fast API
  • Docker
  • Pydantic
  • SQL Databases
Technical Writing
Level: Master
Keywords:
  • Technical Documentation
  • Latex
  • MkDocs

Interests

Studies
Keywords:
  • Finance
  • Stock Market