◆ AIZOTEQ
EV Charging App
A production EV-charging app at AIZOTEQ — MQTT over AWS IoT Core, OCPP 1.6/2.0, BLE pairing and geofencing.
Role
Flutter Developer
Timeline
2023 – Present
Status
Live
The problem
EV charging stations need a mobile app that talks to real hardware reliably — pairing over Bluetooth, exchanging live telemetry, starting and stopping sessions, and enforcing location rules — all while staying responsive on patchy mobile networks.
What I built
- Built the Flutter app with MQTT over AWS IoT Core for live, bidirectional station telemetry.
- Implemented the OCPP 1.6/2.0 charging protocol and Bluetooth LE pairing for station onboarding.
- Added geofenced sessions so charging can be tied to a verified physical location.
Outcome
Live in production, managing real EV charging sessions over IoT messaging and Bluetooth.