Payment integration for APS

APS, based in Gavà, Barcelona, provides automated cart management systems for airports worldwide, including locations in Costa Rica, Turkey, and Milan. Their turnstile-operated rental system allows travelers to rent luggage carts using local currency, with full refunds upon return.

I developed a real-time MQTT communication bridge between their logical control devices and payment processing systems. This involved analyzing both device and payment system documentation to create a seamless integration that enhanced the user experience and operational efficiency.

Technologies used: MQTT and C

Additionally, I contributed to their overall cloud infrastructure using Django and developed frontend interfaces for the local machine systems.

Technologies used: Python, Django, MQTT, Typescript and NextJS

You can visit their website here: APS - Airport Passenger Services