PayChanguCase study 01 / 07Payments
Works / PayChangu
PayChangu
Payment infrastructure that lets businesses across Malawi take mobile money, cards and bank payments, processing millions of transactions with 99.9% availability.
Visit live siteMy role
I architected and extended the payment core: the APIs merchants integrate with, the transaction pipeline behind them, and the database work that made it all faster.
The challenge
Every second a payment hangs is a customer who might walk away. The platform had to stay up through peak traffic, settle across several gateways and currencies, and meet PCI requirements.
01 — Infrastructure
Millions of transactions, 99.9% up.
I re-architected the transaction pipeline so card machines, payment links, e-commerce checkouts and payouts share one reliable core, kept up through peak trading days.
02 — Payment APIs
One API, many gateways.
Scalable payment APIs that support multiple gateways, currencies and third-party integrations. Merchants plug in once, from WooCommerce to custom stacks, and every rail just works.
03 — Security
PCI-compliant by default.
Secure transaction handling and PCI-compliant payment workflows, so salons, restaurants and stores can take payments without thinking about the risk underneath.
Impact
By the numbers
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The palette carried across the product, sampled from the live site.
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PayChangu cyan
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