If by digital engineer, you mean logic gates and nothing else, then, yes. I'd agree. Purity in electrical engineering is probably a lost concept. You need to understand digital, analog and software to reall get by.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.