Hi Dear,
I'm very glad to have an opportunity to help you.
This job is very appealing to me because I have a lot of experience in circuit and PCB design of various kinds of IoT devices using Raspberry Pi, Arduino, WiFi, BLE, RF module, ARM, Atmega, PIC, and several kinds of sensors.
I attached a few pics showing some boards I have previously designed.
I'm familiar with Altium, Eagle, and KiCAD.
I'm confident my skills and experience in PCB design and IoT devices would make me a good candidate for your job.
Looking forward to working with you.
Thanks.
Christian.