---

👨‍💻 About Me

Software Engineer & Solutions Architect with experience at IBM, where I worked on Cloud-Native Architecture and Enterprise System Modernization — including Itaú's Core Banking migration from IBM Z Mainframe to AWS. Currently building and shipping new things.

• 🏗️ Designed polyglot microservices with Go, Java, and Kotlin at scale
• 🏦 Mainframe-to-Cloud migration handling 5M+ daily transactions and 15,000 TPS
• ⚡ Reduced system latency from 850ms → 120ms through Go & JVM optimizations
• 💰 Achieved 67% cost reduction via efficient distributed service design
• 🦀 Passionate about Rust, Database Internals, System Design, and AI tooling
• 📍 Santa Catarina, Brazil

Note: Until March 2026, professional work at IBM/Itaú was done via a GitHub Enterprise account. Contributions here reflect personal projects and open-source work.

---

🛠️ Tech Stack

Languages

Frameworks & Runtimes

Cloud & Infrastructure

Databases & Messaging

APIs & Patterns

---

🔥 Featured Projects

🗄️ ApexStore Rust · LSM-Tree · Storage Engine High-performance embedded Key-Value Store built from scratch with DashMap MemTable, SSTable auto-repair, WAL, and TLS support. Designed to outperform SQLite in write-heavy workloads.	⚡ Vyx Framework Go · IPC · Apache Arrow · Full-Stack Polyglot full-stack framework with a Go Core Orchestrator, annotation-based routing, and inter-process communication via Unix Domain Sockets + Apache Arrow.
🏦 Mainframe to Cloud Migration Go · AWS · COBOL · Microservices Enterprise documentation of IBM Z Mainframe modernization to cloud-native architecture — 5M daily txns, 15K TPS, Go + Java microservices.	🌐 Open Finance Pix API Java 17 · Spring Boot · Kafka · JWT REST API simulating Open Finance Brazil (Phase 3) Pix payment initiation standards, with Kafka event streaming and Docker.
☀️ AWS Serverless Template Terraform · Lambda · DynamoDB · API Gateway Opinionated AWS Serverless boilerplate with modular Terraform, built for legacy system modernization. Production-ready IaC from day one.	🦀 Rust System Tools Rust · CLI · Systems Programming Collection of high-performance CLI tools: log analyzer, performance monitor, and process manager — built for developer productivity.
🚀 Go REST & GraphQL Boilerplates Go · chi / gqlgen · PostgreSQL · JWT Two production-ready Go API templates (REST + GraphQL) with SOLID principles, structured logging, and Docker. Great starting points for new services.	📱 Android Webcam Kotlin · Jetpack Compose · Go Use your Android phone as a high-quality, low-latency webcam. Android app (Kotlin + Jetpack Compose) + desktop client (Go) connected over the local network.

---

📊 GitHub Stats

---

📫 Let's Connect

_{💡 Open to new opportunities in Go, Java, Kotlin, Cloud Architecture & System Design}