Self-Service Ticket Vending Machine (TVM)
Unattended touchscreen kiosk application running in major railway terminals with hardware printer and cash/card integration.
Deployed across major railway terminals, processing tens of thousands of daily walk-up ticket purchases without operator intervention.
Problem Statement
Hardware lockups and unreliable local printing led to long queues at station kiosks when internet connectivity dipped.
Architectural Approach
Engineered an offline-first kiosk shell with automated crash recovery, hardware polling daemon for ESC/POS thermal printers, and real-time transaction reconciliation.
Core Technologies & Ecosystem Tools
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