Software Engineer · Backend & Distributed Systems · Fintech Engineering
Building resilient, scalable and low-latency backend systems — remote-first mindset.
🚀 Currently working at Nubank, delivering mission-critical services that power credit-card and payment platforms across Brazil, Mexico & Colombia.
- 💡 Design and build distributed systems, microservices and event-driven architectures
- 🧵 Solve race conditions, thread-safety issues and concurrency challenges
- 🏦 Experience in large-scale fintech environments: high-throughput, fault-tolerant, 24/7 systems
- 🌍 Fluent in English & Portuguese — open to international fully-remote opportunities
- 🔭 Actively expanding my open-source portfolio using clean architecture, modular design and modern engineering practices
- Improved reliability of high-volume financial services by solving concurrency and thread-safety issues
- Worked on systems processing millions of daily transactions with strict latency requirements
- Delivered production-critical features in globally distributed engineering teams
- Refactoring legacy projects into modern, maintainable and testable architectures
Languages: Java · Kotlin · Clojure
Frameworks: Spring Boot · NodeJS
Architecture & Messaging: Kafka · Event-Driven · Domain-Driven Design · Clean Architecture
DevOps / Infra: Docker · Kubernetes · GitHub Actions
Databases: PostgreSQL · MongoDB
Event-driven transaction processor using Kafka, clean architecture, and atomic operations.
Backend API using Java 21 & Undertow — designed with clean architecture, modular layers, and a focus on concurrency correctness.
API project made with Kotlin Spring Boot that does CRUD operations with MongoDB
Simple time-tracking microservice — clear REST design and straightforward architecture.
👉 Explore all pinned repositories for more.
- Advanced system design
- Distributed systems patterns
- Event-driven architecture
- Cloud-native engineering best practices
- LinkedIn: https://www.linkedin.com/in/rafaalberto17
- Email: rafael.alberto1703@gmail.com
- 🌍 Based in Lençóis Paulista, São Paulo — open to fully-remote worldwide roles
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