Tetyana Ponomarenko tanya@keep.digital
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Kingex.io — Crypto Exchange Platform

Role: Product Designer — End-to-End UX/UI

Scope: Product Design · UX/UI · Fintech · Web3 · Responsive Web · Design System

Kingex crypto exchange interface showing currency conversion, payment, and account screens

Overview

Kingex is a crypto-to-fiat exchange platform supporting multiple currency pairs, payment methods, and transaction workflows.

I owned the end-to-end product design, from exchange interfaces and payment flows to user dashboards, transaction management, and affiliate functionality.

The Challenge

Simplifying complex financial transactions

Crypto exchanges involve multiple steps, payment methods, and transaction states. The challenge was to create an intuitive, trustworthy experience that simplifies these workflows without sacrificing financial transparency.

Multi-Currency Exchange

Designed intuitive crypto exchange interfaces supporting multiple currency pairs, crypto-to-fiat conversions, real-time exchange rates, and flexible payment methods. Simplified complex financial operations through streamlined conversion UX and consistent fintech design patterns.

Kingex multi-currency exchange interface for converting cryptocurrency to fiat

End-to-End Transaction Flow

Designed the complete payment UX and transaction flows, from exchange order creation and payment details to fund transfers, status tracking, and payment confirmation. Developed a clear UX architecture for multi-step financial transactions, simplifying order management and reducing friction throughout the exchange process.

Kingex end-to-end transaction journey from exchange order to payment status and confirmation

User Dashboard & Affiliate Program

Created a centralized user dashboard for transaction history, order tracking, and account management. Applied data-heavy UI design principles to organize financial information, communicate transaction statuses, and enable repeat exchanges.

Designed an integrated affiliate system with dedicated account interfaces and referral functionality. Extended the platform's Web3 product experience with intuitive referral UX, maintaining consistency across the broader product design.

Kingex user dashboard and affiliate program interfaces with account and referral details

Outcome

Delivered end-to-end product design across five core areas of a crypto-to-fiat exchange platform, combining complex payment workflows, transaction management, dashboard design, and affiliate functionality into a cohesive, scalable fintech user experience.

Key takeaway: Transformed complex cryptocurrency exchange operations into intuitive, transparent, and predictable user journeys through thoughtful UX/UI design.