Reengineering and functionality enhancement of a public transport ticketing system serving 30% of the German market. The solution includes a robust, performant backend, as well as iOS, Android and web apps that allow hassle-free, on-the-go ticket purchasing. The system calculates trip costs, allows saving favorite routes, keeps payment history, and supports multiple payment options. Ticket generation functionality uses… counterfeit-proof 2D barcodes to ensure security and easy validation.
Effort: 50 man-months so far