Senior Graphic & UI/UX Designer​

OVERVIEW

DPO Group, one of Africa’s leading payment service providers, set out to enhance its mobile app experience for merchants across the continent. The goal was to design and optimize the DPO Pay App — a secure, scalable, and easy-to-use mobile platform enabling merchants to accept payments, view real-time transactions, and manage their accounts seamlessly. My role was to lead the UX design process, grounded in user research and aimed at delivering a solution that meets the unique needs of small and medium-sized businesses in Africa.

THE PROBLEM

Despite the growing demand for digital payments, many African merchants struggled with the tools available to them. Existing systems were fragmented and lacked support for various payment methods like cards and mobile money. Merchants also faced:

  • Outdated and unintuitive mobile interfaces

  • Limited access to real-time transaction data and daily cash flow

  • Inability to collect payments on the go

  • Low trust in digital solutions due to poor usability and performance

These challenges hindered the adoption of digital payments, especially for businesses without technical expertise.

RESULTS

The redesigned DPO Pay App emerged as a one-stop mobile solution for modern African merchants. By integrating multiple payment methods, offering instant payment notifications, and delivering clear, accessible transaction data, the app significantly improved merchant confidence and adoption. Through user-centric design and continuous feedback from businesses in retail, hospitality, and services, the app delivered a simplified, intuitive experience that empowered merchants to operate efficiently, anytime and anywhere.

MY ROLE

UI/UX

Visual Design

Design Systems

Design Leadership

Design Research

Approach

To design a solution that truly meets the needs of business owners, we began with in-depth user research across several key African markets. We interviewed merchants from various sectors—retail, hospitality, services, and more—to understand their day-to-day challenges, expectations, and habits around receiving payments.

The findings revealed a strong demand for simplicity, flexibility, and trust in digital transactions. Merchants wanted a single platform that could accommodate multiple payment channels, provide instant payment notifications, and offer clear transaction summaries without the need for technical know-how.

Understanding User and Pain Points

Suleiman Abdu Said

Location: Stone Town, Zanzibar


Business: Mid-sized Swahili restaurant catering to locals and tourists


Tech Savviness: Moderate – uses mobile money and WhatsApp for communication

Preferred Language: Swahili & basic English

User Persona: Suleiman Restaurant Owner, Zanzibar

Suleiman runs a popular restaurant in Stone Town that attracts both locals and tourists. His business is growing, but managing payments—especially from tourists using international cards or mobile wallets—has become increasingly difficult. He wants a reliable, easy-to-use payment system that doesn’t interrupt her customer flow and helps her track her sales better.

Frustrations

  • Cannot accept card payments consistently due to unreliable POS machines
  • Has to track payments manually, leading to errors and loss of income
  • Mobile money requires her personal number, which blurs the line between personal and business finances
  • Tourists often ask for payment links, which she currently can’t generate

Goals

  • Accept card and mobile money payments seamlessly

  • Keep business and personal transactions separate

  • Track daily sales and generate simple reports

  • Offer payment flexibility to customers (especially tourists)

Grace Atieno

Location: Nairobi, Kenya


Business: Small neighbourhood toy store
 
Tech Savviness: High – active on social media and uses mobile apps for business
Preferred Language: English & Kiswahili

User Persona: Grace Atieno – Toy Shop Owner, Nairobi

Brian runs a small toy shop in a busy Nairobi estate. He markets his products through Instagram and WhatsApp, receiving many inquiries from parents who prefer to pay remotely. He’s a hands-on entrepreneur looking to scale his business by offering digital payment options and streamlining how he handles money.

Frustrations

  • Relies on manual payment confirmations via mobile money
  • Loses customers when he can’t offer convenient digital payment options
  • No access to a simple app that tracks payments in one place
  • Finds it hard to reconcile payments from multiple sources at the end of the day

Goals

  • Send secure payment links to customers via WhatsApp or SMS

  • Accept mobile money and card payments from both walk-in and online customers

  • Track and reconcile all payments in one place

  • Grow trust with customers by looking more professional and streamlined

Information Architecture & User Flow

To ensure business owners could access key features quickly and intuitively, we focused on thoughtful idea generation grounded in real user needs. Based on insights gathered from our research, we mapped out the information architecture and user flow to create a smooth, efficient experience. This helped ensure that actions like accepting payments, viewing transactions, and generating payment links were simple, accessible, and friction-free for all users.

Design System

To ensure consistency, scalability, and efficiency in the app’s development and user experience, I created a comprehensive design system specifically tailored for the DPO Pay App. This system included a unified set of components, typography, color schemes, iconography, and interaction patterns — all optimized for mobile environments and the needs of African merchants.

High-Fidelity Wireframes

High-Fidelity Design

Designed for Merchants. Built for Africa.

The DPO Pay App was crafted with real merchant needs at its core — intuitive, flexible, and reliable. From accepting payments on the go to tracking transactions in real time, every screen was designed to make digital payments simple and accessible.

This visual walkthrough highlights the seamless user experience, clean interface, and thoughtful design decisions that empower small and medium-sized businesses across Africa to manage their operations with confidence — anytime, anywhere.