Job Description
We build industrial IoT monitoring for hospitals and manufacturing plants (e.g., fridge/OT room temperature, differential air pressure, AC current, chiller trip sensors, water level). We need a hands‑on engineer to help us ship an MVP and then iterate.
Read from Modbus RTU/TCP (RS485) and/or vendor payloads (hex frames).
Optional: LoRaWAN via ChirpStack or gateway API.
Publish to cloud via MQTT/HTTPS with retry & basic buffering.
MQTT/REST ingest service (Node.js/TypeScript or Python/FastAPI).
Time‑series DB (TimescaleDB/PostgreSQL or InfluxDB ).
Auth (JWT), org/site scoping.
Alerting : threshold rules, hysteresis, delay, notification via Email / WhatsApp / Telegram (any two to start).
Reports: daily summary (PDF/CSV export).
DevOps
Docker Compose for local/dev.
Basic deployment guide (Ubuntu VM).
README + short vi...