Santo Keiyau | Product Design Portfolio

full spectrum

Santo is a full spectrum product designer focused on zero-to-one innovations & scalable design systems.

View recent projects ↓

Cosmopolitan

Voting experience for Best of the Best Beauty Awards 2025

15k

ACHIEVEd significant voting completion

12%

time reduced on voting compared to last year

campaign

B2C

responsive

branding

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Cosmart

Earn point mission user experience for travel campaign

275%

outperformed last year

18.75%

a strong and consistent growth on week 3 and 4 (duration of 4 weeks)

B2C

responsive

branding

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Wayy

Pioneering Hong Kong first's group matching platform

10th

ranked as App store - Lifestyle

Over 1k

registered users in less than a week after launched at App store

app development

startup

branding

design system

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Cosmart

Building an integrated community via membership system

ACHIEVEd significant members subscription

32%

Increase in members growth after rebranding

dashboard

B2C

responsive

membership

branding

design system

membership

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Rolex

Establish the brand identity for Rolex

bringing better customer experience

CSR

responsive

2024

B2B

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Treasurix

Bringing web3 treasury tool more accessible to enterprises

Financial product supported by blockchain.

dashboard

blockchain

statistics

finance

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Management Tool

Enhancing employee volunteering participation for banks

visualising data for easier analyse.

dashboard

responsive

webapp

B2B

webapp

B2B

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Cosmart

Reigniting the brand identity for e-commerce platform

bringing better customer experience

e-commerce

responsive

shopify

rebrand

B2C

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