Keito Ishizuka

I’m a Product Designer with 3+ years in fintech, banking platforms, and B2B2X products, backed by 7 years of total design experience. I help complex financial ecosystems feel simple through intuitive, user-centered web and mobile interfaces—especially across payments, onboarding, Pix, cards, and transactional platforms.

At Fitbank (Payimobi & Strategic Products), I led design end-to-end as Founder Designer, building brand identity, a design system, and product UX across an administrative backoffice, customer portal, and broker mobile app. I designed physical payment cards and related assets, aligned to Mastercard guidelines and technical specifications.

I also worked on OSB (Open Source Bank) and delivered UX for modular financial features used across Brazil and Latin America, including Pix Automático, Special Return Mechanism (MED), DDA, and credit card functionalities. Beyond that, I designed MAIA, an AI-powered financial assistant integrated with WhatsApp and Mastercard Click-to-Pay.

From Infiniti Bank, where I progressed from intern to Product Designer, I refined workflows through wireframes, usability flows, and prototyping while collaborating closely with product, engineering, and business teams in agile environments. I’m now focused on continuously reducing friction, validating usability, and scaling reusable UI components that teams can trust.