Hi 👋, I'm Alexandre Ray
Hello! I’m an AI Product Engineer.
I build AI products that empower businesses through artificial intelligence and entrepreneurship.
I hold a bachelor’s degree in computational physics and a master’s degree in computer engineering / computer vision, both from University of São Paulo.
In the pinned repositories below, you will find selected projects from my AI engineering portfolio, including:
- Two domain-specific RAG systems: legal-engine, focused on legal document retrieval and question answering, and medical-rag, focused on medical knowledge retrieval and grounded clinical-style responses.
- One agentic AI system: stock-agent, an AI agent designed to analyze stock market data, reason over financial information, and support investment research workflows.
- One speech AI web application: speech-flow-ai, a web app for audio processing and speech-to-text transcription, demonstrating applied AI for voice and language workflows.
In addition to these open-source projects, I also lead the development of two SaaS products, OncoAI Platform and NotebookMed, as well as OncoCare, a mobile app focused on the oncology patient journey.
| Category | Technologies |
|---|---|
| Languages | Python, R, Bash, TypeScript |
| Backend | Django, FastAPI, Flask, Node.js |
| Machine Learning | Scikit-learn, PyTorch, TensorFlow, PySpark |
| GenAI / LLM | LangChain, LangGraph, Hugging Face, Ollama |
| Databases & Retrieval | PostgreSQL, MySQL, MongoDB, OpenSearch, FAISS, ChromaDB |
| Cloud & DevOps | AWS, Azure, Docker, MLflow, Airflow, Terraform |
| Other | Git, pytest, DeepEval, RAGAS |