Hi, I'm Mateus
AI Researcher &
Software Engineer
BIOGRAPHY
AI Researcher and Software Engineer passionate about building transparent and fair AI for complex
decision-making.
My work bridges advanced research in Explainable AI (XAI), Recommender Systems, and Fairness with practical
operational needs.
Currently conducting research at the University of Jaén (UJA), ranked #1 in Spain for Computer Science
Research Quality (THE 2025), #40 globally.
Based in Jaén, Spain.
Experience
Experience & EducationEducation
PhD Candidate
UJA - Spain 2025 - PresentMaster's in Optimization and Decision-Making
PUC Minas - Brazil 2021 - 2023Bachelor's in Electrical Engineering
PUC Minas - Brazil 2016 - 2020Work
AI Researcher
University of Jaén - Spain Jan 2025 - PresentFull Stack Engineer (Contractor)
Freelancer - Ireland May 2023 - Sep 2024Master's Thesis Researcher
Vale Innovation Hub - Brazil Dec 2021 - Sep 2023Software Engineer & Technical Trainer
SYDLE - Brazil Jan 2020 - Jun 2023Associate AI Engineer
Omdena - New York Jan 2022 - Apr 2022Co-Founder & CTO
Looksafe - Brazil Feb 2019 - Feb 2020
Publications
Research contributions and academic workGREX: A Platform for Supporting Explanations in Group Recommender Systems
IDEAL 2025. Lecture Notes in Computer Science, vol 16239. Springer, Cham.
View PublicationOn Multicriteria Decision-Making Under Conditions of Uncertainty
2025. Book Chapter, PUC Minas. ISBN 978-65-88547-80-9
View PublicationScenario Building for Multicriteria Analysis Using Group Decision-Making
2025. Book Chapter, PUC Minas. ISBN 978-65-88547-80-9
View PublicationA Multicriteria Decision-Making in Conditions of Uncertainty for Ports' Ore Exportation
2023. PARIPEX - Indian Journal of Research, 12(7), 1–5.
View PublicationMulticriteria Decision-Making Under Conditions of Uncertainty in Port Ore Flow (Master's Thesis)
2023. PUC Minas, Computer Science Graduate Program
View ThesisCan Logic Assist in Achieving Legal Certainty in Judicial Decisions?
2022. Studies in Public and Private Law: Volume VI. ISBN 978-65-88331-55-2
View PublicationContracts in the Free Energy Market and Risk Analysis Strategy (Bachelor's Thesis)
2020. PUC Minas, Electrical Engineering
View ThesisProjects
Open-source projects and contributions
Portuguese translation of Donald Knuth's book
The Art of Computer Programming (Open Source)
TAOCP Portuguese Translation
View Repository
Portuguese translation of Interpretable Machine Learning: A Guide for Making Black Box Models Explainable by Christoph Molnar
Interpretable ML Book - Portuguese Translation
View Repository
Port Ore Export Optimization and Decision-Making
View Repository
for Brazil's Free Energy Market
Energy Market Risk Analysis
View RepositoryExpertise
Technologies and research methodologiesAI/ML Research
PyTorch
Pro experience
Scikit-learn
Pro experience
TensorFlow
Intermediate
Mlxtend
Pro experience
Explainable AI
Research focus
RecSys
Research focusOptimization & Decision-Making
Gurobi
Research experience
PuLP
Research experience
SciPy
Research experience
CVXPY
Research experience
Fuzzy Logic
Prof experienceLLMs & NLP
LangChain
Research experience
CRSLab
Research experience
LLMOps
Certified
Transformers
IntermediateProgramming Languages
Python
Prof experience
JavaScript
Prof experience
TypeScript
IntermediateData Analysis
Pandas
Prof experience
NumPy
Prof experience
Matplotlib
Prof experience
Seaborn
Prof experience
JupyterLab
Prof experienceSoftware Development
Next.js
Intermediate
Material UI
Intermediate
Node.js
Prof experience
Tornado
Prof experienceDatabase & Cloud
MongoDB
Prof experience
PostgreSQL
Prof experience
Elasticsearch
Prof experience
AWS
Prof experienceDevOps & Tools
Docker
Prof experience
Git
Prof experience
Jest
Testing