Independent Product Designer
Five projects below. One brief didn't exist. One had the sign flipped. One was too small. One was the deliverable. One was a map.
Selected work
No PM, no existing flow. I designed the missing feature, shipped it, and scoped the next opportunity before leaving. Catalog users doubled in the eight months after launch.
An industrial equipment company's ROI calculator returned wrong numbers. In my test run, R$ −1,108,800 in savings. The math was right. The sign was inverted.
23 steps before a seller could start, and the entry was off limits. I redesigned what came after: one-page setup, 5 steps to 3, mobile first.
End-to-end research across 6 teams and 12 systems. The problem everyone assumed? It wasn't. The direction I proposed became the brief for the next cycle.
Employee #11 at a waste-management service startup. Before any screen, I designed the map of the service. It went into the seed pitch. The app came after.
About
I grew up between two cultures that don't naturally speak to each other. That gap became the job: finding what's missing before it reaches the screen.
Brazil and Japan. Moving between them taught me to read a room early, and to read what isn't said.
I started as a graphic designer in Tokyo. Then art direction in São Paulo advertising and live marketing: omnichannel at Ogilvy, then events and point of sale. Then product. Complex B2B is where I do my best work. Hire number 11 at a waste-management service startup that went from zero to 400+ clients. An e-commerce platform at UOL Host. At Grupo Boticário, B2B first, then credit, risk and fraud.
Today I work independently. I research, design and ship it in code. I also work as an AI trainer, annotating data that helps models learn what to look at.
Open to remote contracts and client projects. Not a fit if the goal is just a nicer-looking deck.
"Yuki has an exceptional ability to transform complex strategies into tangible solutions, bridging business needs with impeccable design — from Product Discovery and ROI definition to delivering high-value digital products from scratch."
Marina Ferreira Mendez
Group Product Manager · B2B Platform
"Yuki is results-focused and uses business objectives to drive smart design decisions. Her objectivity is her greatest strength — she works with agility while designing intentional experiences. Excellent team relationships and ideas that push beyond conventional approaches."
Caio Prado Ferraz
Design Lead · UOL
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