I'm

Josue Macedo

Product designer for over ten years. Now innovating in product with AI.

I like big problems,
great teams, and the details nobody notices.

Song Sift

An app that turns any MP3 on your phone into a backing track: it separates guitar, drums or vocals with AI and hands you a mixer in your pocket.

2025 · iOS / Android

Letras Academy

A platform to learn languages through music: free content, a subscription with lessons and courses, and a teacher marketplace. I led the design from discovery to delivery, with a team of six, at the start of the pandemic.

2021 · Web / App

Redesigning the Letras apps

Full redesign of the native iOS and Android Letras apps, keeping the lyrics one tap away while adding recommendations, playlists and search.

2018 · iOS / Android

Jarbas

A native iPhone personal assistant with a butler persona that connects your bank, health and location data and uses a language model to turn it into active care: it organizes your finances on its own and only speaks when it has something useful to say.

2026 · iOS

Cifra Club Micro-lessons

A short-form video format that brings Cifra Club's teaching to Instagram and TikTok: an iconic passage played in detail, with the tablature, chords or rhythm on screen.

2025 · Instagram / TikTok

Pronunciation Dictionary

A pronunciation-focused dictionary tool that teaches through music and serves as an SEO entry point into Letras Academy.

2021 · Web

See full project