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Juan Fernández

Belo Horizonte, Brazil · Remote, UTC−3

I'm Juan Fernández, Senior Product Designer based in Brazil.

Nine years in fintech, marketplaces and B2B, from Walmart's Seller Center to Airtm's wallet. I turn complex flows into products that ship: at Walmart, a pricing case went from 12 days to 2.

LinkedIn ↗juangpf94@gmail.comWhatsApp ↗Resume (PDF)

Selected work

Product design, end to end

Euros as one more wallet

I added euros to Airtm's dollar wallet as one more wallet: a card per currency, and one wallet page for both. It's live in the app, and rebuilt here so you can try it.

Airtm multi-currency wallet2026Live in the app

Complex B2B workflows

From 12 days to 2 to resolve a pricing case

Walmart Pricing Room2025Shipped

Business metrics

One app, shaped by what you hold

Creditas app2023Measured in the project reviewPrivate screens

Product strategy

One architecture, three local rails

Airtm virtual accounts2026Live in Colombia and Mexico

Design systems, with AI

A design system in code, built from the tokens up

Airtm design system2026In use, May–Sep 2026Private screens

AI-assisted workflows

The program that helps Walmart sellers keep competitive prices, automatically

Walmart Incentives2024–25Live in Seller Center

Information architecture

One menu and header for Airtm's Retail and Enterprise platforms

Airtm Web Platform Shell2026Handed to engineeringPrivate screens

More work

Where I've worked

Ten companies, and some of the clients I designed for.

Fintech, marketplaces, healthtech, conversational platforms and AI, from a trophy maker in Belo Horizonte to Walmart's marketplace.

Clients

…and others.

Juan brought strong product intuition, thoughtful design judgment, and a genuine commitment to improving the user experience.
Arshi Singh · Chief Product Officer, Airtm
juangpf94@gmail.com
LinkedIn ↗WhatsApp ↗Resume (PDF)
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