Satoshi Tai
Works

WORKS

Case Studies

End-to-end ownership across LPO, EFO, and UX redesign — from data-driven problem analysis and hypothesis building to design, copywriting, A/B test planning, execution, and reporting. Results I can back with numbers, published as case studies.

Case Studies

A track record across LPO, EFO, and UX redesign projects

Select a case study below to explore the full process and results behind each project.

LPO

freee Accounting Product Page

Combined GA4 funnel analysis with UserInsight heatmaps to revamp key visual messaging, leveraging the product's market share.

+167%

Document Download CVR

EFO

freee HR Document Request Form

Leveraged knowledge from numerous past EFO projects via expert review, then restructured the form into a multi-step layout.

+197%

Document Download CVR

UX REDESIGN

freee Brand Top Page

Combined GA4 and UserInsight analysis to address desktop and mobile users separately, optimizing the design for each traffic source.

−16%

Bounce Rate Improvement

Other Projects

Driving CVR growth across a range of industries

Client confidentiality prevents me from disclosing specific company names or details.

LPOEFO

Job Listing & Recruitment Service

Worked with a comprehensive staffing agency handling everything from mid-career to part-time roles, contributing to new user acquisition via forms and maximizing job application rates.

LPOEFO

Mobile Phone Service (MVNO)

To grow new user acquisition for an MVNO, identified high-converting pages, restructured information architecture, and revised content priority and design to increase sign-ups.

LPOEFO

House Builder

For a leading Japanese house builder, optimized UI and information to reduce user hesitation and drive more catalog requests and showroom visits.

EFOWEB ANALYSIS

Housing Equipment Manufacturer

Led EFO initiatives to drive showroom visits and conducted GA4-based web analysis to surface pain points on key pages and compile actionable improvement reports.

Managed approximately 100 A/B tests with a win rate of 66.27% (vs. the global average of ~20%).

Case Study Details & About Me

If my work or background has caught your interest, please take a look at the pages below.

View Case Study DetailsAbout Me