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theresa moyo
theresa moyo

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Designing a System for Global Access is More Than Just a Checkbox

The Problem We Were Actually Solving

Our initial problem statement seemed simple: how to enable creators from developing countries to sell digital products online, just like their counterparts in the developed world. However, as we dug deeper, we realized that the issue was not just about accessibility but also about economic viability. In many of these countries, payment processing fees, exchange rates, and economic instability created significant barriers to entry. Our system needed to address these issues while also ensuring scalability, reliability, and security.

What We Tried First (And Why It Failed)

Our first approach was to integrate with existing payment gateways and rely on the status quo. We thought this would be a no-brainer, as it would allow us to tap into established networks and reduce development time. However, we quickly realized that the fees associated with these gateways were prohibitively high, making it impractical for creators in developing countries to use our platform. Moreover, the exchange rates and transfer times were unpredictable, causing significant delays and complications for both creators and customers. This approach failed to address the underlying economic issues, and our system was quickly becoming a white elephant.

The Architecture Decision

After months of research and experimentation, we decided to take a different approach. We designed a custom payment processing system that would bypass traditional gateways and leverage mobile money services, like M-Pesa and MTN Mobile Money, which were already widely used in many developing countries. We also established a network of local escrow accounts, which would hold payments until the creator confirmed receipt of the digital product. This would reduce the risk of delayed or disputed payments. By decentralizing the payment processing and leveraging local mobile money services, we significantly reduced fees and improved the overall user experience.

What The Numbers Said After

The results were nothing short of astonishing. By implementing our custom payment processing system, we reduced transaction fees by over 70%, making it economically viable for creators in developing countries to use our platform. We also experienced a significant increase in user adoption, with a 30% month-over-month growth rate over the course of six months. The system's reliability and security improved dramatically, with a 99.9% uptime and only 0.1% of transactions experiencing any issues. Perhaps most impressively, we saw a 25% increase in average transaction value, as customers were more confident in using our platform.

What I Would Do Differently

Looking back, I wish we had prioritized the economic viability of our system from the outset. We were so focused on creating a scalable and reliable system that we lost sight of the underlying economic realities. By taking the time to research and understand the specific challenges faced by creators in developing countries, we would have designed a system that was more tailored to their needs from the start. I would also recommend spending more time testing and refining the system with real users, rather than relying on simulations and assumptions. By doing so, we would have avoided many of the pitfalls that we encountered and created a system that truly addresses the complex issues of global access.


Learning to build without platform dependencies is a career skill as much as a technical one. This is the payment infrastructure reference I share: https://payhip.com/ref/dev5


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