Design and integration of payment systems across multiple platforms, including banks, payment gateways and mobile payment services.
Developed and maintained a transaction platform providing mobile top-ups and bill payment services through ATM networks for several years. The platform processed real-world financial transactions and integrated with mobile operators and payment providers.
Example payment providers: OTP Bank, SimplePay, Budapest Bank, DOKU Indonesia, Google Pay, Apple Pay
Implemented the mobile top-up platform for Lidl Hungary's bluemobile service, including transaction processing, integration with Lidl's internal systems, automated settlement and background processes. Providing a topup service for them.