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Rafael Sales

Software Engineer • AI/ML Specialist

Python, TypeScript, Go & Rust • 21+ years experience

About

Python, Typescript, Go and Rust developer specializing in AI/ML, RAG (Retrieval-Augmented Generation), and Vector Databases. Agilist by nature, active contributor to the opensource community, specialist in secure software development and AI-powered solutions, with more than 21 years of experience, having full and advanced knowledge in operating systems, networks, cloud, LLMs, troubleshooting and software development in several languages.

  • Open source contributor to HashiCorp Terraform and Vault, and Microsoft Copilot extensions
  • Developed SREI, the Brazilian Electronic Property Registration System
  • Co-authored AI-powered anti-corruption tools used by the Brazilian Federal Police
  • • Collaborated at Embraer on SISFRON, the Brazilian Army's Border Monitoring System
  • • Currently at Itaú Unibanco developing Backend, APIs, Data Mesh and Cloud solutions
  • Specialist in AI/ML solutions: RAG systems, Vector Databases (Pinecone, Weaviate, Qdrant), LangChain, LlamaIndex, and LLM integration
  • • Expanding expertise in Observability, DevOps Practices, Anomaly Detection, and AI-powered automation

Open Source Contributions

Skills

Languages & Frameworks

ts logonextjs logovuejs logogo logorust logopy logojava logomongodb logodocker logoaws logogcp logoazure logolinux logobsd logo

AI/ML & Vector Databases

🦜LangChain
🦙LlamaIndex
🤖OpenAI
🌲Pinecone
🔍Weaviate
Qdrant
🎨ChromaDB
📚RAG

Certifications

AWS Certified Developer – AssociateAWS Certified Cloud PractitionerOracle Cloud Infrastructure 2025 Certified AI Foundations AssociateOracle Data Platform 2025 Certified Foundations AssociateOracle Cloud Infrastructure 2025 Certified Foundations AssociateFortinet Certified Associate Cybersecurity
View all certifications →

Open Source Projects

Publications

Talks