About
How I work, and what shaped it.
Juan Fernández
Belo Horizonte, Brazil · Remote
I'm Juan Fernández, a Senior Product Designer in Belo Horizonte. I design financial and operational products with distributed teams. Most recently at Airtm, I worked on wallets, local bank rails and the web systems shared by consumer and business products.
I frame the decision before drawing the screen, test on the hardware people actually use, and keep the business outcome visible while the team works. That is how complexity becomes something people can understand and trust.
I build what I design as working prototypes and production components, using AI where it improves the work and keeping irreversible decisions with people. I'm open to a remote Senior, Staff or Lead role.
- Portuguese
- Native
- English
- Fluent (C1)
- Spanish
- Working, daily
Design values
- 01
Systems over screens
I design components and patterns that scale. Every decision considers the system it lives in, not just the page it is on.
- 02
Clarity is trust
In fintech, confusion erodes confidence. I obsess over making complex workflows feel obvious.
- 03
Build to learn
I use high-fidelity prototypes and code to test behavior, expose constraints and give the team something real to evaluate.
- 04
Outcomes are shared
I work closely with product, engineering and data, keep the intended business result visible, and distinguish a team outcome from a design claim.
Experience
Dec 2025 — Sep 2026
Airtm
Senior Product Designer
Designed dollar-wallet experiences for Latin America: local virtual accounts that let people fund the wallet through the bank rails they already use, a multi-currency wallet, and the web navigation system shared by the consumer and business products. Also rebuilt the design system in code, with automated checks for token and accessibility drift.
Apr 2024 — Oct 2025
Formula.Monks (Walmart)
Senior Product Designer
Led design across several areas of Walmart Marketplace's Seller Center, owning discovery through QA. Consolidated fragmented pricing tools into one investigation flow, with thresholds explained in context instead of looked up elsewhere.
Mar 2024 — Dec 2024
Aimana.ai
Design Lead / Product Designer
Built the discovery and design process now used across every AI-driven client project, and facilitated the workshops where client journeys, OKRs and AI opportunities were defined.
Sep 2023 — Apr 2024
Cactus
Senior Product Designer
End-to-end UX for healthcare products, from research to delivery. Structured the team's product rituals, mentored junior designers and pushed the design system to scale.
Apr 2022 — Sep 2023
Creditas
Senior Product Designer
Benefits card and loan onboarding: discovery, A/B testing and research aimed at conversion and churn, on mobile and web, with international teams.
Sep 2021 — Apr 2022
Banco Inter
Senior Product Designer
Mobile and web features for a bank with more than 11 million users, with analytics and research deciding what shipped.
Nov 2019 — Sep 2021
Blip
Product Designer, previously Conversational Designer
Designed the Blip platform experience and the metrics that said whether users were succeeding with it. Before that, chatbot experiences for enterprise clients, plus the UX-writing tone and the KPIs teams measured conversations by.
Feb 2019 — Apr 2019
Trofys
UX Researcher & Designer
Interviews, benchmarks, wireframes and prototypes for an industrial e-commerce startup.
Nov 2017 — Nov 2019
Inoxline
Product & UX Designer
Physical and digital product interfaces, researched and tested in iterations, and the innovation workshops (Design Sprint, Lightning Decision Jam) that shaped them.
Education
Universidade do Estado de Minas Gerais
BA in Product Design
Istituto Europeo di Design
Design Thinking & Creative Business Management · 2017
Tera
Digital Product Leadership · 2019
Product School
Product Masterclass · 2020