Work on the part after the demo.
The interesting work begins when the device ships: weak coverage, inconsistent firmware, awkward protocols, operator habits and service decisions that still need to work on Monday morning.

Small teams, visible decisions, real constraints.
Engineers work across hardware, firmware, cloud, data and operations because connected-product failures rarely respect organisational boundaries. Ownership is direct. A design choice should have a reason, a test and someone responsible for what happens next.
Send evidence of how you think.
A short note about a system you built, debugged or measured is more useful than a long list of tools. Include the role you want, location, availability and links to work you can discuss.