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Work

Every project here shipped — to the App Store, Google Play or production web. Each case tells what the product was, what I owned and which decisions carry my fingerprints.

Own products

Built after hours, owned end to end — design, code, infra and the store listing. Every decision here is mine.

IEQ MVA — your church in the palm of your hand: app home with all modules
IEQ MVA — the Bible always with you, in multiple versions

01 · igreja.studio · own product

IEQ MVA

A whole church in one app — the flagship of igreja.studio, my white-label for churches.

IEQ MVA is the first church running on igreja.studio, the white-label platform I built for churches. No decision here belonged to anyone else: requirements with the church, every screen in Figma, Expo app, NestJS API, Azure infrastructure and both stores.

  • React Native
  • Expo
  • NestJS
  • Azure
  • Figma
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QWIP — the whole gas station in your pocket: reports home
QWIP — all the finances in one report: financial inventory by fuel

02 · QWIP · own product

QWIP

A whole gas station operation, readable from a phone.

My own SaaS: a multi-tenant financial management platform for gas stations. Reports, indicators and asset tracking — one NestJS backend, a Next.js web app and an Expo app, all built and shipped by me.

  • Expo
  • React Native
  • SwiftUI
  • Next.js
  • NestJS
  • PostgreSQL
  • TypeScript
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NitroSpray

03 · Capstone · PUC-Campinas

NitroSpray

A factory-floor ERP — from process mapping to deploy.

My Software Engineering capstone: an ERP to manage production processes in a medical equipment factory, built with React and Node.

  • React
  • Node.js
  • TypeScript
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Company work

What I built inside product teams — from a 40-brand white-label to digital banks in production.

PaGol — digital account home with wallet and miles
PaGol — balance earning miles and transaction history

01 · Gol Linhas Aéreas · via MB Labs

PaGol

The digital account that turns balance into miles — and miles into travel.

Gol Airlines’ digital account, where your balance earns miles every business day. I worked on the border between native and React Native: critical modules in Swift/UIKit wired into a shared RN codebase.

  • Swift
  • UIKit
  • React Native
  • TypeScript
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Bankeiro

02 · MB Labs

Bankeiro

One codebase. Forty-plus banks.

The white-label banking platform behind 40+ brands — PaGol, Localiza, Syngenta and others. I owned the front-end side: architecture, standards, code review and the pipeline that shipped dozens of apps to the stores.

  • Next.js
  • React Native
  • TypeScript
  • Node.js
  • AWS
  • Fastlane
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b.Uni — home with balance, Pix and recent transactions

03 · B.uni

b.Uni

The digital bank that fits a student’s life.

A digital bank focused on university students. I am the engineer responsible for both ends of the product: the React Native app and the React internet banking.

  • React Native
  • React
  • TypeScript
  • Redux
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MaisMei

04 · MaisMei

MaisMei

Brazilian small-business bureaucracy, solved in one app.

Financial services for Brazilian micro-entrepreneurs (MEI): company registration, tax slips (DAS/DASN) and business account management. I worked across native iOS (Swift/SwiftUI) and React Native.

  • Swift
  • SwiftUI
  • React Native
  • MobX
  • Go
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Lab & experiments

Weekend code — the place where I try things before I trust them.

crypto-tracker↗

Crypto tracker in SwiftUI — Combine, MVVM and the CoinGecko API.

Swift · SwiftUI

MapApp-swiftui↗

Maps and places app in SwiftUI, exploring MapKit and animations.

Swift · MapKit

calculator-swiftui↗

An iOS calculator built from scratch to study SwiftUI layout.

Swift · SwiftUI

CarAPI↗

Car registration API with a built-in authentication system, in Node.

Node.js · API

wordle↗

A Wordle clone to play with game logic and state.

TypeScript

bot-whatsapp↗

A WhatsApp bot in Python — automation before it was mainstream.

Python