Hi, I'm Leonardo Henrique O. Pena.
Data Scientist with 7+ years of experience in Machine Learning, AI, and Generative AI.
About
Data Scientist with over 7 years of experience in Machine Learning and Artificial Intelligence. My work is centered around developing predictive models and delivering data-driven solutions that drive business success.
Currently, I serve as Tech Lead DS & Staff AI Engineer at Auto Avaliar, where I lead AI Engineering and Data Science operations, building production-grade AI agents for the automotive sector. I am also a Professor of Generative AI at XP Educação, Professor of MLOps at FIAP, and Professor of AI Engineering at Alura.
I hold a Bachelor's degree in Statistics from Unicamp, with specializations in Artificial Intelligence (PUC Minas) and Data Science (UTFPR).
- Languages: Python, R, SAS, SQL
- Databases: MySQL, PostgreSQL, MariaDB, SQL Server
- Libraries & Frameworks: NumPy, Pandas, SciKit-Learn, TensorFlow, LangChain, LangGraph, Tidyverse
- AI & ML: Machine Learning, Deep Learning, NLP, Computer Vision, Generative AI, LLMs, MLOps
- Tools & Technologies: Git, AWS, GCP, Docker, JIRA, Data Engineering, ETL
Experience
- Spearheading AI Engineering and Data Science operations
- Leading a team of 3+ engineers and managing vendor partnerships
- Building production-grade AI agents for automotive sector applications
- Multi-agent systems, complex workflow orchestration, scalable GenAI solutions
- Tools: Python, R, LangChain, LangGraph, CrewAI, n8n, Foundry, GCP, JIRA
- Professor of LangChain in the AI Engineering career track
- Tools: Python, LangChain
- Professor at Pos Tech (Alura & FIAP) for Machine Learning Engineer program
- Teaching data analysis, machine learning, and artificial intelligence
- Tools: Python, TensorFlow, Cloud Computing
- Professor in the Data Engineering postgraduate program
- Module: Generative AI Applied to Data Engineering
- Responsible for content creation and lecturing
- Data Science instructor for cohorts of ~30 students in live, remote setup
- Teaching programming, machine learning, and artificial intelligence
- Mentoring students and continuously updating curriculum
- Content professor for Machine Learning Fundamentals course
- Focus on supervised learning, decision trees, and tree-based models
- Nominated and Awarded Featured Expert of 2021 Year
- Time series for demand prediction in supermarkets
- Churn prediction for schools
- Churn prediction for financial broker
- Host on data podcast: ComuniDados
- Tools: Python, R, AWS, JIRA, Bitbucket
- More than 2000 students
- 12+ statistics and data science courses in Portuguese
- Tools: R
- Anti Fraud detection
- Mathematical Optimization
- Tools: R, Python, Genetic Algorithms, SPSS
- Demand Prediction
- Pricing for shared races startup
- Clustering for human resources
- Tools: R, Python, XGBoost, PAM Clustering
- Validation of scorecard models
- Stress Testing
- PPNR Models
- Tools: R, SAS, SQL, Spreadsheets, ARDL Models
- Validation of scorecard models
- Preparation of PPT for validation forum
- Report preparation
Teaching
Passionate Educator & Speaker
With a deep passion for knowledge sharing, I have taught over 2,000+ students across leading institutions in Brazil and online platforms. My teaching spans Machine Learning, Artificial Intelligence, Generative AI, and Data Science — bridging the gap between cutting-edge research and practical industry applications.
From university classrooms to corporate training and online courses, I bring real-world experience as a Staff Data Scientist and AI Engineer into every lesson. I believe the best way to master a subject is to teach it — and I am committed to empowering the next generation of data professionals.
2,000+
Students Taught
5+
Institutions
AI, ML & GenAI
Core Subjects
Where I Teach
- Alura — Professor, AI Engineering (Jun 2025 – Present)
- FIAP — Professor, Machine Learning Engineering (Apr 2024 – Present)
- XP Educação — Professor, Generative AI (Jun 2024 – Aug 2025)
- Coderhouse — Professor, Data Science (Jul 2023 – May 2025)
- Kroton — Professor, Machine Learning (May 2022 – Apr 2024)
- Udemy — Instructor, 2,000+ students enrolled
Certificates
Certificates
Green Belt - Six Sigma (EDTI)
Black Belt - Six Sigma (FM2S)
Digital Transformation (MIT)
Skills
Languages and Databases
Python
R
SAS
MySQL
PostgreSQL
Shell Scripting
Libraries & Frameworks
NumPy
Pandas
Tidyverse
scikit-learn
matplotlib
AI & Machine Learning
Tools & Cloud
Git
AWS
GCP
JIRA
Bitbucket
Education
Campinas State University (Unicamp)
Campinas - Sao Paulo, Brazil
Degree: Bachelor of Statistics
- Inference
- Probability
- Regression
- Time Series
- Multivariate Data Analysis
Relevant Courseworks:
Federal Technological University of Paraná (UTFPR)
Dois Vizinhos - Paraná, Brazil
Degree: Specialization in Data Science
- Data Base Modeling
- Big Data
- Statistics
- Machine Learning
- Deep Learning
Relevant Courseworks:
Belo Horizonte - Minas Gerais, Brazil
Degree: Specialization in Artificial Intelligence
- Natural Language Processing
- Computer Vision
- Data Visualization
Relevant Courseworks:
Campinas State University (Unicamp)
Campinas - Sao Paulo, Brazil
Degree: Master's in Computer Science (incomplete)