Claire Sakaguchi
Claire is a product designer shaping the future of payments and remote sales workflows.
Previously at Square, Amazon and barre3.
Sample work
Quick Pay hub
Square 2026
Led a sprint to replace legacy Virtual Terminal with a unified Quick Pay Hub — designing, prototyping and shipping an A/B test in 6 weeks.
→ 30% of risky payments moved to invoicing
Invoice surcharging
Square 2025
Lead designer working with a cross functional team across web, IOS and Android on a 0 → 1 feature launch and full page redesign.
→ $93 billion paid with Invoices 36% enable surcharging
Invoices Plus
Square 2023
Redesigned the Invoices Plus SaaS experience and established a unified framework to replace years of fragmented, inconsistent updates.
→ 25% Invoices Plus subscriber growth
barre3 Online
barre3 2021
End-to-end redesign of barre3 Online, a digital subscription platform offering hundreds of on-demand and livestream workouts to a global audience of clients.
→ 50% Subscriber increase post-launch
Approach
→ My process is grounded in deep understanding, leveraging insights and data to uncover real customer needs and aligning teams around thoughtful, user-centered problem-solving.
→ I prioritize efficiency and agility, moving fast while maintaining a strong commitment to quality in every detail of the product.
→ I design with inclusivity at the core, aiming to create innovative solutions that are accessible and impactful for all users.
Claire Sakaguchi
Claire is a product designer shaping the future of payments and remote sales workflows.
Previously at Square, Amazon and barre3.
Sample work
Quick Pay Hub
Square 2026
Led a sprint to replace legacy Virtual Terminal with a unified Quick Pay Hub — designing, prototyping and shipping an A/B test in 6 weeks.
→ 30% of risky payments moved to invoicing
Invoice Surcharging
Square 2025
Lead designer working with a cross functional team across web, IOS and Android on net new feature launch and full page redesign.
→ $93 billion paid with Invoices 36% enable surcharging
Invoices Plus
Square 2023
Redesigned the Invoices Plus SaaS experience and established a unified framework to replace years of fragmented, inconsistent updates.
→ 25% Invoices Plus subscriber growth
barre3 Online
barre3 2021
End-to-end redesign of barre3 Online, a digital subscription platform offering hundreds of on-demand and livestream workouts to a global audience of clients.
→ 50% Subscriber increase post-launch
Approach
→ My process is grounded in deep understanding, leveraging insights and data to uncover real customer needs and aligning teams around thoughtful, user-centered problem-solving.
→ I prioritize efficiency and agility, moving fast while maintaining a strong commitment to quality in every detail of the product.
→ I design with inclusivity at the core, aiming to create innovative solutions that are accessible and impactful for all users.