Backend Developer & Software Architect (in progress) — São Paulo, Brazil 🇧🇷

I'm a backend developer with a strong focus on software architecture, authorization models, and application security. I care about building systems that are secure, maintainable, and designed to scale — not just code that works today.

• 🎓 Studying Multiplatform Software Development at FATEC Itaquera
• 💼 ~1.5 years of professional backend experience
• 🏗️ Deep, ongoing specialization in authorization models (RBAC, ACL, DAC, MAC, ABAC) and cybersecurity
• 🎯 Working toward senior backend / software architect roles, with longer-term entrepreneurial and international-market goals
• 📚 I document everything I learn in structured Notion notes — with the long-term goal of mentoring other developers
• 🔭 Currently expanding into Java + Spring Boot as a second backend language

Languages TypeScript JavaScript Java PHP Python C

Backend Frameworks NestJS Spring Boot

Frontend React Vue.js Next.js Tailwind CSS shadcn/ui TanStack Query

Messaging & Async Processing BullMQ RabbitMQ Kafka Redis Pub/Sub

Databases MongoDB (relational databases as well, in transaction-heavy service design)

Testing Jest

Tooling & Platforms Docker Git GitHub Notion GitBook

I build backend systems around solid architectural foundations rather than just shipping features:

• Domain-Driven Design (DDD) — aggregates, bounded contexts, domain events
• Clean Architecture
• Event-Driven Architecture — EventBus abstractions, Saga-style orchestration, pub/sub and point-to-point queue models
• SOLID principles and classic design patterns (Builder, Specification, and others), studied alongside OOP cohesion and software quality standards (ISO/IEC 25010)
• Micro Frontends with Module Federation

Authorization and secure-by-design backend development are my main specialization:

• Authorization models: RBAC, ACL, DAC, MAC, ABAC — including a hands-on "RBAC with permission override" (grant/revoke) implementation using NestJS guards and decorators
• Self-built cybersecurity curriculum covering the OWASP Top 10, API security, and NestJS-specific secure patterns
• Ethical pentesting practice with Burp Suite and HackTheBox

• Deepening message-driven architecture across BullMQ, RabbitMQ, Kafka, and Redis Pub/Sub
• Structured Java + Spring Boot roadmap (domain modeling → multi-tenant authorization → event-driven order management → security hardening)
• Ongoing cybersecurity curriculum and secure-backend practices

• 💼 LinkedIn
• 💻 LeetCode
• 🥋 Codewars

"An architect thinks in systems, not just in code."