Foto de Perfil

Rafael Sales

Software Engineer • AI/ML Specialist • 2x AWS • 3x Oracle Certified • AWS Community Builders Member

Python, TypeScript, Go & Rust • AWS, Oracle, GCP & Azure • AI/ML, Cloud Architecture & DevOps • Open Source Contributor

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.

I'm currently working with SDD - Spec-Driven Development, SRDD- Spec-Roundtrip Driven Development , and Spec Kit, developing VSCode extensions widely used by the community.

🏦Currently working @ Itaú Unibanco
Currently developing Backend, APIs, Big Data, Data Mesh, Apache Spark, Cloud, AI, RAG, Code Transpilers, Spark Connectors and Vector Databases solutions.
🤖AI/ML Specialist
Specialist in AI/ML solutions: RAG systems, Vector Databases (Pinecone, Weaviate, Qdrant), LangChain, LlamaIndex, and LLM integration.
🌐Open Source Contributor
Open source contributor to HashiCorp Terraform and Vault, and Microsoft Copilot extensions.
☁️AWS Community Builders Member
Active member of the AWS Community Builders program, sharing knowledge on cloud and AI/ML topics.
⚖️SREI/CNJ
Developed SREI, the Brazilian Electronic Property Registration System — National Council of Justice, 2M notarial acts/day.
🛡️Brazilian Federal Police
Co-authored AI-powered anti-corruption tools used by the Brazilian Federal Police.
✈️Embraer — SISFRON
Collaborated at Embraer on SISFRON, the Brazilian Army's Border Monitoring System.
📡Observability & AI Automation
Expanding expertise in Observability, DevOps Practices, Anomaly Detection, and AI-powered automation.

Open Source Contributions

Selected contributions focused on cloud architecture, secure platforms, and developer tooling powered by AI.

Person-oriented onboarding extension for spec-kit projects (v2.1.0). It introduces contextual onboarding and progressive growth with commands like start, explain, trail, quiz, badge, mentor, and team, plus lifecycle hooks for implementation and explanation workflows.
Spec Kit
Onboarding
Developer Experience
Mermaid
TypeScript
OpenArchFlow
Featured
OpenArchFlow is an open-source Progressive Web App designed for cloud architects, DevOps engineers, and developers. Generate interactive AWS architecture diagrams from natural language descriptions using AI, Large Language Models (LLMs), AI Agents, and AWS MCP (Model Context Protocol).
PWA
AWS
AI
LLMs
AI Agents
MCP
Java client focused on secure integration with HashiCorp Vault APIs, helping teams adopt robust secret management patterns in enterprise environments.
Java
HashiCorp Vault
Security
API
VS Code extension that streamlines Spec-Driven Development workflows, turning requirements into an executable development guide directly in the editor.
VS Code
Developer Experience
TypeScript
AI
Context-aware VS Code extension that loads external references such as docs and APIs to enhance code assistance and speed up implementation decisions.
VS Code
Documentation
Productivity
AI
Contributions to the llms.txt ecosystem to improve discoverability and machine-readable context sharing for AI-first developer tooling.
Open Standards
AI
Docs-as-Data

GitHub 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
🔥PyTorch
⚙️TensorFlow
🧠Scikit-learn
🔢NumPy
🐼Pandas
📊Matplotlib

Latest 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 CybersecurityFortinet FortiGate 7.6 OperatorAcademy Accreditation - AWS Databricks Platform ArchitectAcademy Accreditation - Generative AI FundamentalsAcademy Accreditation - Platform Administrator
View all certifications →

Open Source Projects

spec-kit-onboard
Contextual onboarding and progressive growth extension for spec-kit projects, with commands, hooks, Mermaid dependency trails, quizzes, and profile-based learning state.
TypeScript
Developer Experience
Spec Kit
...
vault-java-client-simple
A lightweight Java 8 library for interacting with HashiCorp Vault using AWS IAM authentication. Inspired by the Python hvac client, this library provides simple yet complete functionality for authe…
Java
Vault
HashiCorp
...
OpenArchFlow
OpenArchFlow is an open-source Progressive Web App designed for cloud architects, DevOps engineers, and developers. Generate interactive AWS architecture diagrams from natural language descriptions using AI, Large Language Models (LLMs), AI Agents, and AWS MCP (Model Context Protocol).
AI
TypeScript
AWS
...
speckit-assistant
Visual orchestrator for Spec-Driven Development with Spec Kit, directly inside VS Code.
AI
VS Code
TypeScript
...
pagepilot
PagePilot is a VS Code Chat participant that automatically loads external context (documentation, APIs, README files) to provide enhanced responses. Language is automatically detected from your VS …
AI
VS Code
TypeScript
...
lambda-rag-lite
Uma biblioteca Python ultra-leve para RAG (Retrieval-Augmented Generation) criada especificamente para AWS Lambda, totalmente compatível com LangChain, que elimina dependências pesadas como NumPy, …
AI
Python
...
go-quality-gate
Language-agnostic code quality control tool with Git hooks A code quality control tool built in Go, distributed as a single binary with no external runtime dependencies. Provides enhanced visual fe…
Go
CI/CD
Quality Code
...
go-quality-gate-action
A comprehensive GitHub Action for Go Quality Gate - a language-agnostic code quality control tool built in Go with Git hooks support.
Go
Dockerfile
GitHub Actions
...
aiops_anomaly_detection_tdc2023
Esse repositório contém o código fonte da palestra: AIOPs - Detecção de anomalias com Python e Prometheus, realizada no Evento TDC 2023 https://thedevconf.com/tdc/2023/business/trilha-community-lou…
AI
Jupyter Notebook
Python
...

Publications

Talks