Architected and deployed an end-to-end EV Charging Management System (CSMS), charger touch UI, and telemetry platform connecting distributed DC fast chargers with real-time OCPP protocols, payment gateways, and remote diagnostics.
As EV adoption surged across India, Tirex Chargers required a modern, enterprise-grade Charging Station Management System (CSMS) capable of orchestrating thousands of commercial charging sessions simultaneously without packet loss or protocol desynchronization.
Legacy charging station management suffered from intermittent OCPP connection drops, uncoordinated firmware pushes, and delayed billing reconciliations. The system needed to bridge embedded charger hardware with cloud microservices while handling spotty cellular connections and complex OCPP state machines.
We engineered a distributed, event-driven architecture using AWS IoT Core and WebSockets to handle real-time OCPP 1.6 and 2.0.1 messages (BootNotification, Heartbeat, MeterValues, RemoteStartTransaction). On top, we developed a responsive touch-optimized charger UI and an operations portal featuring remote reboot, live diagnostics, tariff configuration, and automated RFID/POS payment authorization.
Event-driven OCPP message broker handling bi-directional charger commands.
Resilient offline queueing for meter values during transient cellular dropouts.
Integrated POS and RFID authentication workflows for instant user authorization.
Fleet diagnostics dashboard with real-time temperature, current, and fault alerts.
The unified CSMS streamlined charging operations, reduced manual intervention, and enabled reliable commercial fleet deployment with sub-second status synchronization across hardware endpoints.
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