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EduardoFabisiak

backend and full-stack software engineer, from Rio Grande do Sul, Brazil.

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role
Backend Software Engineer
location
Rio Grande do Sul, Brazil
timezone
America/Sao_Paulo
experience
4+ years
languages
Portuguese (native), English (professional)

About

Software engineer from Rio Grande do Sul, Brazil, focused on backend and distributed systems with full-stack range. I work across the whole product lifecycle: architecture, APIs, data, cloud infrastructure and deploy. I like the border between engineering, product and business: understanding the problem behind the feature and building what makes sense technically and as a product.

Base
Rio Grande do Sul, Brazil
Education
B.S. in Computer Science, Universidade Regional Integrada (2024 - 2027)
Languages
Native Portuguese, professional English
Focus
APIs, distributed systems, messaging, payments

Stack

Languages

  • JavaScript
  • TypeScript
  • Java
  • Python
  • PHP
  • Ruby
  • Kotlin
  • Lua

Frameworks & libs

  • Node.js
  • Express.js
  • Spring Boot
  • Laravel
  • Rails
  • React
  • Next.js
  • React Native
  • Bun
  • Elysia
  • Tailwind CSS

Data & messaging

  • PostgreSQL
  • MySQL
  • MongoDB
  • Redis
  • SQLite
  • Firestore
  • RabbitMQ
  • Kafka
  • BullMQ

AI

  • Claude Code
  • Devin IDE
  • Prompt Engineering
  • OpenDesign

Infra & DevOps

  • AWS
  • Docker
  • Linux (Arch)
  • GitHub Actions
  • Proxmox
  • Nginx
  • Apache
  • Git
  • CI/CD

Practices & protocols

  • REST APIs
  • GraphQL
  • gRPC
  • WebSocket
  • JWT
  • OIDC
  • Microservices
  • Agile methodologies

Experience

NOV 2025 → MAY 2026

Software Engineer

Preço Local

  • REST API from scratch in Node.js/TypeScript for catalogs, pricing and search engines
  • Distributed Redis caching cutting latency on recurring searches
  • Geolocation and city-based search with results ordered by proximity
  • Cross-platform React Native mobile app with responsive UI
  • Dockerized services with CI/CD; published on Google Play and the App Store

Node.js·TypeScript·React Native·Redis·PostgreSQL·Docker·Geolocation·CI/CD

Google PlayApp Store

JUN 2025 → NOV 2025

Software Engineer

Sky Store

  • Node.js and PostgreSQL backend services for the digital products e-commerce
  • RabbitMQ queues and Redis caching for high-throughput async processing
  • React storefront frontend and Amazon S3 file storage
  • Lua scripts and FiveM server mechanics connected to APIs and backend services
  • Admin panels and internal tools for user management and operations

Node.js·React·PostgreSQL·Redis·RabbitMQ·AWS S3·Lua·FiveM·Linux

SkyStoreAmericanópolis

SEP 2024 → JUN 2025

Software Engineer

Rituais de Axé

  • Payment architecture with instant Pix and automated enrollment on confirmation
  • Node.js REST APIs for student workflows and administrative endpoints
  • Background jobs for payment status checks and enrollment triggers
  • JWT authentication with RBAC protecting course content and user data
  • Course media on Amazon S3; internal tools (photo time-tracking, vacations, automations)

Node.js·React·Redis·AWS S3·JWT·RBAC·Pix·PostgreSQL

Rituais de Axé

DEC 2022 → SEP 2024

Full-Stack Developer

Document Search & Query Platform

  • Search services in Java with low-latency APIs for complex document queries
  • Decomposition of the legacy monolith into independent microservices
  • High-volume indexing pipelines and async messaging with RabbitMQ
  • Distributed Redis caching and PostgreSQL query tuning under load
  • Java/PHP → Laravel modernization, automated test suites and CI/CD pipelines

Java·PostgreSQL·Redis·RabbitMQ·Microservices·PHP·Laravel·CI/CD

Projects

Own products built end to end, from data modeling to deploy.

SAAS · MESSAGING

Naia

Multitenant bulk campaign platform for WhatsApp and Telegram, with 98%+ delivery rate, send pacing, webhooks, retries and real-time tracking. Ran in production serving real customers and is now open source.

Node.js·TypeScript·PostgreSQL·Redis·BullMQ·Docker

github.com/fabisiakeduardo/Naia

IDENTITY · BILLING

Vianova

Account, identity and billing hub for the company I'm founding: own OIDC provider with OAuth2 and 2FA, multi-workspace RBAC and Stripe subscriptions. Every new product starts on top of this base. Ran in production and is now open source.

Bun·TypeScript·Elysia·Stripe·PostgreSQL·OIDC

github.com/fabisiakeduardo/Vianova

SELF-HOSTED · VOICE & CHAT

Onda

A Discord alternative where the community runs on the host's own server: voice, video, text, history and moderation stay entirely with the host, even behind CGNAT. Onda only holds the identity, which travels across servers.

ondachat.app

AI · PRODUCTIVITY

Currículos

Rails app that generates resumes tailored to each job posting: extracts keywords from the description, scores the match and rewrites summary and bullets. Chat assistant, LinkedIn PDF import and multi-provider AI (Ollama, OpenAI, Anthropic, Gemini).

Rails 8·SQLite·Hotwire·Stimulus·LLM

github.com/fabisiakeduardo/curriculos

Open source

Tools I built for myself and published for anyone to use.

Blog

What I build, learn and break along the way.

2026-07-22

2 min

My homelab: how I stopped paying for subscriptions

I got tired of paying for streaming I barely used and an expensive VPS just to run game servers. I reused a PC that was sitting idle, installed Proxmox and brought everything home. This is the current setup.

$ read post

2026-07-20

1 min

How Naia started

In 2022 a friend needed to blast messages to groups and I built a tool for that. This year I went back to the project, started building a CRM on top of it, and founded Vianova to house it and the products that come next.

$ read post