IoT engineering joins hardware, connectivity and cloud into systems that actually work in the field — sensors on a factory floor, telematics in a vehicle, monitoring across a utility network. Pune is one of India's better markets for this because of its manufacturing and automotive base, and the work is closer to industrial engineering than to consumer gadgets. The hardest part is rarely the code: it is power budgets, unreliable networks and devices that must run unattended for years.