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David Díaz Vallejo

@daviddazvallejo

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I design AI, SaaS, fintech, and e-commerce products that improve activation, conversion, retention, and accessibility.

Spain

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What I'm looking for

I'm looking to lead end-to-end product design for AI-powered, SaaS, fintech, or e-commerce products, where I can use research, experimentation, design systems, and cross-functional collaboration to improve product-market fit and business outcomes.

I've redesigned products for Pencil, ISDIN USA, Bancamarch, Amadeus, and fintech and insurance platforms, using product design to improve activation, conversion, retention, and clarity.

At Pencil, I redesigned the core editor, onboarding, navigation, and information architecture for an AI-powered visual resources platform. I consolidated 15+ fragmented editor tools into a context-aware toolbar and introduced progressive onboarding guidance.

I bring end-to-end product design, research, experimentation, design systems, and cross-functional workshop facilitation to B2B SaaS, e-commerce, fintech, and AI-powered products. I've validated 235+ design proposals through user research, usability testing, A/B testing, and lean experimentation.

Experience

Work history, roles, and key accomplishments

Current

Senior Product Designer

Current

Pencil

Jan 2025 - Present (1 year 8 months)

Led UX redesign of the core editor and information architecture to boost user activation and discovery. Redesigned onboarding flow and simplified the asset editor by consolidating fragmented tools into a context-aware toolbar.

UX Design Information Architecture Onboarding User Research Card Sorting Figma