To make this product come to life, we needed a reliable provider of web and hosting services on the backend. The cards run on top of a PCI-DSS compliant card processor, which exposes an API for the wallet to track spending, view the balance and most importantly empower the users to make changes to limits or blocking the card on the go. Since secure data about transactions would be transmitted from the processor, the connection not only had to be encrypted, it also required setting up a primary and secondary VPN connection with the processor.

Working with AWS helped us build out, test and manage these connections and multiple API gateways with ease. The VPN had to be custom tuned for the needs of the processor, so we could easily set up the basics in AWS and then dig deeper and unlock more power when we needed it by going down to each machine and tuning the communication.

Having access to powerful scaling and load balancing tools meant that we built the solution to scale naturally by just adding more EC2 machines in the future. Having the database service RDS helped us setup, encrypt and automatically backup all of our databases, so that we could focus on what needed to be built instead of hardcoding backup scripts or having to set up the database ourselves. And thus we were able to launch the application very quickly across multiple platforms.