During my career, I have been involved in different projects including IoT developments such as SMART home solutions (sensors, gateways, WiFi plugs and similar devices, smart home appliances etc).
I believe I could design your project (circuit and PCB) for these reasons:
1. As a rule, all my designed devices use Bluetooth, WiFi, and 433MHz remote control for communication with an APP or gateway.
2. Due to my work responsibilities I've maintained all my project in China factories. This gained experience allows me to rapidly prepare PCB for mass production
3. Based on my experience I've always faced with RF designing (Antennas, matching circuits, PCB antenna designing for NRF52832 IC and ESP8266)
We could negotiate all questions (such as samples, design features (max distance, antenna types, dimensions et.c). For clear understanding, I need more information and 3d cad model of the case (step model)
I’ve always spent about 20 hrs/week for freelance projects. At least 6 years PCB and circuit design experience. All projects are implemented in Altium Designer. Final docs will include Gerber files, BOM, circuits, source files, pick and place files and other docs for mass production.