Apple app engineer / SwiftUI consultant

I help founders ship AI-powered Apple apps.

I work as an Apple app engineer and SwiftUI consultant, building AI features, polished native interfaces, and the product, frontend, and backend work it takes to launch on iPhone, iPad, and Mac.

  • 9+ Years shipping on Apple platforms
  • 15+ Apps built and released
  • 10M+ Downloads across shipped work
Giorni app screenshot
Hustlrr app screenshot
Arbora app screenshot
Nitpickr AI PR review tool

Start here

The fastest way to see the fit.

If you landed here to assess how I work, what I ship, or whether I am a fit for your Apple product, these three pages are the clearest next stops.

Work

Products I've built.

A few products that show how I build: clear UX, strong native execution, and real delivery.

How I work with founders
Coming soon
Arbora app icon

AI plant app / In progress

Arbora

AI plant identification and care app in progress, built to make diagnosis, guidance, and follow-up simple for everyday plant owners.

Hustlrr app icon

AI app / iPhone, iPad, Mac

Hustlrr

Multi-model AI chat app built natively for Apple devices, with Liquid Glass UI, document uploads, voice input, side-by-side answers, and iCloud sync.

Giorni app icon

Habit app / App Store

Giorni

Habit tracker built around simple daily use, with focus sessions, widgets, iCloud sync, and a cleaner path back into the routine.

Appelou app icon

Brazil App Store / Shopping app

Appelou

Real-time local price comparison app for shoppers in Alagoas, built to help people find better deals nearby with less friction.

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Developer tool

Nitpickr

Source-available AI PR review for GitHub, built to keep the model, rules, and runtime under your control.

Nitpickr mascot reviewing code on a laptop

About

More than the work.

I am a Brazilian expat living in Austria, working as an Apple app engineer and SwiftUI consultant from Graz. Most of my work lives on Apple platforms, but I am also comfortable across frontend, backend, and the product decisions around the app when that is what it takes to ship something well.

Outside work, I love cycling, I have been learning to ski, and I still play guitar after years of being in a band. I am married to a brilliant engineer, so home is basically a happy nerdy two-person lab.

Portrait of Rubens Pessoa

Contact

If you need an Apple app engineer for a SwiftUI product, let's talk.

I work with a small number of founders who care about product quality, speed, and getting the details right.

Contact me

For project inquiries and collaborations.