Product design / development / delivery

From product problem to working release

Bring the current product, workflow, or delivery problem. I can diagnose it, design the experience, build the interface, and stay through release.

English reconstruction of the Dr.Head storefront; the case chapters show the product-card redesign.

Proof before scope

A documented conversion result

In the documented two-month A/B window, add-to-cart conversion increased from 1.82% to 3.65% and product-card bounce fell from 18% to 15%. The result describes the tested product-card flow; it does not isolate the effect of any single interface change.

Product-card conversion
1.82% → 3.65%
Bounce rate
18% → 15%
Measured window
2 months
Read the conversion case

Engagement scope

Choose the level of involvement

One accountable product loop, sized to the part that is currently blocked.

01 / Diagnose

Find the decision that is stuck

Audit the product, funnel, workflow, or delivery system and turn the findings into a prioritized path forward.

02 / Design

Make the answer testable

Define the product model, flows, interface, states, prototype, and implementation-ready design system decisions.

03 / Deliver

Stay through the release

Build the product interface or work directly with engineering through implementation review, analytics, QA, and launch.

Supporting evidence

More shipped work

Slack queue with ranked actions, source states, and scheduled digests.

AI Assistant / Ops Workflow

Pochtalyon AI

A private 2026 product connects Slack, Google, and YouTrack through an n8n and Node.js workflow. The available evidence verifies the delivered states and system structure; usage impact was not measured.

NextSport public product, match center, editorial admin, and retention telemetry.

Media Product / Match Data + Admin

NextSport.io

Delivered from 28 January to 3 June 2026 across 139 live route nodes. Early 2026 product tests ran for at least one month; the strongest selected segment reached 15% peak click-through into match pages and deeper team, player, or tournament context. Registration, revenue, and long-term retention were not measured.

WINSCORE public landing.

Mobile App / Live Match Data

WINSCORE

2025–2026 mobile UX/UI and design-system work; the public landing is included, while in-app screens and performance data are unavailable.