CleanTech startups, EV charging network operators (CPOs), and renewable energy platforms frequently search to hire a freelance CleanTech, EV charging (OCPP 1.6J / 2.0.1), solar & smart grid IoT programmer. I am Aldian Fazrihady, a Senior Freelance Full Stack Developer and IoT Systems Architect available via Upwork.
Core EV Charging (OCPP), Solar & Smart Grid Capabilities
- OCPP 1.6J & 2.0.1 Central System (CSMS) Engineering: Building high-concurrency WebSocket CSMS backends in Go and Python that manage thousands of EV chargers, remote start/stop transactions, smart load balancing, and OCPI roaming billing.
- Solar Inverter, BESS & Smart Meter Telemetry: Ingesting Modbus/MQTT/SunSpec time-series telemetry into TimescaleDB / InfluxDB with real-time React fleet dashboards.
- AI Energy Load Forecasting & Tariff Arbitrage: Optimizing battery storage dispatch against dynamic wholesale electricity spot prices.
Frequently Asked Questions
How do you handle unreliable cellular connections from remote EV chargers or solar sites?
I implement stateful OCPP heartbeat/reconnection state machines, offline transaction message queuing, and idempotent meter-value reconciliation so billing records are never lost during cellular dropouts.
How can we hire you as a freelance CleanTech & OCPP programmer?
Message me on Upwork.