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jeferson0306/README.md

Hey, I'm Jeferson Siqueira 👋

Senior Fullstack Engineer at BMW Group (via Aubay) | Building scalable systems & AI-powered tools

LinkedIn npm GitHub

🚀 What I Do

5+ years building high-performance backend systems for finance, automotive, and e-commerce.

Currently focused on cloud-native architectures and AI integration — because the future of software is intelligent systems.

📦 Featured Project

jay-crew — Multi-Agent AI Team

A CLI tool that scans any codebase and generates AI-ready context for Claude, ChatGPT, or any LLM.

bash npx jay-crew -p ~/your-project "Full technical analysis"

✨ 200+ technologies detected · Zero API keys · Works with any AI

npm version GitHub stars

🛠️ Tech Stack

Backend

Java · Kotlin · Go · Python · Node.js Spring Boot · Quarkus · Express.js

Cloud & DevOps

AWS · Docker · Kubernetes · Terraform Jenkins · GitHub Actions · GitLab CI

Data

PostgreSQL · Oracle · MongoDB · Redis Kafka · SQS · EventBridge

AI & LLMs

AI Agents · RAG · MCP Protocol · Prompt Engineering LangChain · OpenAI SDK

📚 Currently Learning

🎓 MBA in Software Engineering with AI — Full Cycle (2026~2027)

Focused on: AI-driven development, agent orchestration, and next-gen software architecture.

💼 Experience Highlights

Company Role Impact
BMW Group (Aubay) Senior Fullstack Engineer Cloud-native services on AWS
Banco do Brasil Senior Software Engineer U.S. financial integrations (Pershing, NICE Actimize)
Sicredi Software Engineer -33% incident resolution time
Stefanini Software Engineer 99.3% vulnerability reduction across 84 repos

📫 Let's Connect

"The future belongs to those who adapt."

Pinned Loading

  1. jay-crew jay-crew Public

    TypeScript 1

  2. merge-ready merge-ready Public

    JavaScript 1

  3. yessr-java-spring-mongo-redis yessr-java-spring-mongo-redis Public

    O Yessr é uma aplicação de Gerenciamento de Relacionamento com Clientes (CRM) que utiliza tecnologias modernas para oferecer uma solução eficiente e escalável.

    Java

  4. projet-backend-frontend-completo projet-backend-frontend-completo Public

    Projeto completo de back-end e front-end com Spring Boot, Hibernate, REST, Ionic, JWT, S3, MySQL e MongoDB.

    Java 1

  5. rest-api-golang rest-api-golang Public

    Aplicação restfull na linguagem GO utilizando Postgres

    Go

  6. api-data-validator api-data-validator Public

    Go 1