### Hey, I'm Gabriel! 👋

- 👀 Interested in **Data Engineering · Data Science · ML Engineering**
- 🌱 Currently learning ML System Design, AI Engineering, and building scalable data pipelines
- 🤝 Open to collaboration on open source projects
- 📫 Reach me at: gabriel.pereira@protonmail.com

<div align="center">

[![LinkedIn](https://img.shields.io/badge/-LinkedIn-blue?style=flat-square&logo=Linkedin&logoColor=white&link=https://www.linkedin.com/in/gabrielpereira-dev)](https://www.linkedin.com/in/gabrielpereira-dev)

---

### Skills

<p align="center">
  <a href="https://www.postgresql.org/" target="_blank" rel="noreferrer"><img src="https://raw.githubusercontent.com/danielcranney/profileme-dev/refs/heads/main/public/icons/skills/postgresql-colored.svg" width="36" height="36" alt="PostgreSQL" /></a>
  <a href="https://www.python.org/" target="_blank" rel="noreferrer"><img src="https://raw.githubusercontent.com/danielcranney/readme-generator/main/public/icons/skills/python-colored.svg" width="36" height="36" alt="Python" /></a>
  <a href="https://docs.microsoft.com/en-us/cpp/?view=msvc-170" target="_blank" rel="noreferrer"><img src="https://raw.githubusercontent.com/danielcranney/readme-generator/main/public/icons/skills/cplusplus-colored.svg" width="36" height="36" alt="C++" /></a>
  <a href="https://aws.amazon.com" target="_blank" rel="noreferrer"><img src="https://raw.githubusercontent.com/danielcranney/readme-generator/main/public/icons/skills/aws-colored.svg" width="36" height="36" alt="AWS" /></a>
  <a href="https://www.docker.com/" target="_blank" rel="noreferrer"><img src="https://raw.githubusercontent.com/danielcranney/readme-generator/main/public/icons/skills/docker-colored.svg" width="36" height="36" alt="Docker" /></a>
  <a href="https://www.linux.org/" target="_blank" rel="noreferrer"><img src="https://raw.githubusercontent.com/danielcranney/readme-generator/main/public/icons/skills/linux.svg" width="36" height="36" alt="Linux" /></a>
  <a href="https://www.raspberrypi.org/" target="_blank" rel="noreferrer"><img src="https://raw.githubusercontent.com/danielcranney/readme-generator/main/public/icons/skills/raspberrypi-colored.svg" width="36" height="36" alt="Raspberry Pi" /></a>
</p>

</div>

---

## 📁 Repository Structure

This is my personal workspace — a monorepo for data engineering and data science projects.

```
workspace/
├── apps/               # Production applications
├── data-engineering/   # Udacity Data Engineering Nanodegree portfolio
└── skills/             # dbt reference templates & best practices
```

---

## 🚀 Apps

### [`apps/timesfm-forecast`](./apps/timesfm-forecast)

A production-grade time series forecasting application powered by **Google's TimesFM** model.

| | |
|---|---|
| **Stack** | Python · Streamlit · PyTorch · HuggingFace Transformers |
| **Features** | Multi-key forecasting · CSV upload/download · GPU/CPU support |
| **Package manager** | `uv` |

**Quick start:**
```bash
cd apps/timesfm-forecast
uv venv && source .venv/bin/activate
uv pip install -e .
timesfm-app
```

---

## 📚 Data Engineering Portfolio

Udacity Data Engineering Nanodegree projects — a hands-on progression through core DE tools.  
[🎓 View Credential](https://graduation.udacity.com/confirm/43TR6CQZ)

| # | Project | Stack | Description |
|---|---------|-------|-------------|
| 1 | [Postgres Data Modeling](./data-engineering/01-postgres-modeling) | Python · PostgreSQL | Star schema design for music streaming analytics |
| 2 | [Cassandra Data Modeling](./data-engineering/02-cassandra-modeling) | Python · Apache Cassandra | Denormalized NoSQL schema for query-first design |
| 3 | [Cloud Data Warehouse](./data-engineering/03-cloud-data-warehouse) | Python · AWS S3 · Redshift | Cloud ETL pipeline with staging and fact/dim tables |
| 4 | [Spark Data Lake](./data-engineering/04-spark-data-lake) | PySpark · AWS S3 | Large-scale partitioned processing with Parquet output |
| 5 | [Airflow Pipelines](./data-engineering/05-airflow-pipelines) | Apache Airflow · Redshift | Orchestrated hourly ETL with modular custom operators |
| 6 | [Immigration Capstone](./data-engineering/06-immigration-capstone) | PySpark · AWS S3 | Multi-source data lake integrating immigration, weather & demographics |

See [`data-engineering/README.md`](./data-engineering/README.md) for full details.

---

## 🛠️ dbt Skills

The [`skills/`](./skills) folder contains reference templates and best-practice guides for dbt projects:

- Staging, Transform, and Mart model patterns
- Incremental materialization strategies
- SQL style guide
- YAML schema testing templates