CRO UX/UI Personalization

PUMA Website Experience

Usability, interaction, CRO and personalization

Role

As a Conversion Strategist and Owner, I lead cross-functional teams in executing A/B tests, analyzing user behavior, and implementing UX enhancements that deliver measurable conversion improvements.

Context

Working Framework

Team

UX/UI Designers, Researchers, Data Analysts, Software Engineers

Tools

Dynamic Yield, Google Analytics, MS Clarity, Figma, Jira

Strategy

Marginal gains — break down each stage of the funnel into goals, measure and optimize for them. Make decisions based on individual page goals (indicator metrics). Monitor transactions and revenue.

Focus

Usability, UX design, and personalization

Objective

Maximize the performance of each step in the funnel

Flagship Test

Fit Predictor (Turkey)

Stage

Post-add-to-cart / pre-purchase confidence

Scope

PUMA Turkey online store, new customers, desktop + mobile

My Role

Identified sizing-driven returns as the top return-reason via return data and customer feedback analysis; scoped the third-party integration with engineering; defined the test segmentation (new customers only) and success metrics with the data analyst.

Problem

Footwear returns were above average, driven primarily by sizing issues identified in customer feedback.

Hypothesis

Adding a personalized size recommendation will reduce size-related uncertainty, resulting in higher conversion and lower return rates.

Test

A/B test deploying Fit Predictor (a third-party size-prediction tool) to give new customers personalized size recommendations at the PDP. The control group shopped without assistance.

Results

+115%
Conversion Rate
-30%
Return Rate

Run over [X weeks], [X]% statistical confidence, n = [X] sessions

Add Fit Predictor PDP screenshot

Fit Predictor recommendation on the PDP

Outcome / Next Step

Based on these results, Fit Predictor was recommended for [global rollout / expansion to additional markets].

Web Experience Optimization

Search Fly-out

Stage

Search & discovery

Scope

[Global / region], desktop + mobile

My Role

Reviewed Clarity session recordings to identify friction in the search fly-out; proposed the simplified variant with UX design; ran the test and analyzed engagement data.

Hypothesis

Simplifying the search fly-out by removing extra elements will help users stay focused on the task, reducing cognitive load and encouraging engagement with search results.

Test

A/B test comparing the existing fly-out against a simplified version with non-essential elements removed.

Results

+70%
Engagement
+38%
Product Views

Run over [X weeks], [X]% statistical confidence

Add simplified fly-out screenshot

Simplified search fly-out — winning variant

Outcome / Next Step

[What happened after — did it ship, inform other pages, etc.]