Medium PCB with Wi-Fi/Bluetooth

I’m developing a new consumer-electronics gadget and need a compact, production-ready PCB designed around a Wi-Fi/Bluetooth module. The board must stay within a 4 x 4 inch footprint, leaving enough clearance for an enclosure that is already in progress... (Budget: ₹12500 - ₹37500 INR, Jobs: Antenna Design, Bluetooth, Electrical Engineering, Electronics, Embedded Systems, PCB Layout, Product Design)