Selected case studies

Four deep dives into difficult product problems — what I changed, what didn’t work, and what moved the numbers.

Login-free recurring payments

FinTech · Nearly $40M in year one

AI-ready mobile design system

Social Network · iOS & Android · Reviewable UI in 1.5 hours

Proposals, signing & billing

FinTech · Adoption 19.1% → 28.3%

Voice-first hotel operations

B2B SaaS · Paid contract in 8 months