Schematic design for compact magnetic wireless charger

I'm looking for a senior hardware engineer to design the schematic for a compact, battery-powered magnetic wireless charger for iPhone (Qi transmitter, 5–7.5 W output, single-cell Li-ion).

Must have proven experience in Qi wireless charging transmitters, power electronics, and lithium-ion battery charging and protection.

Deliverables: complete schematic, BOM with manufacturer part numbers, power budget and thermal calculations, and editable source files. All design IP and source files assigned to me.

Fixed price only. NDA required before full specification is shared.

In your bid, please answer:
1. Which Qi transmitter chip would you use, and why?
2. Show a past wireless charging transmitter project you designed.