I have 5+ years experience in electronics & circuit design, PCB Layout, wireless, automation...
I'm done so much project that similar with your project, some of it have been mass product so i think i can help you with your project
If you looking for quick designing protypes in test and research process i can design very quickly for you and make your project speeding to mass product.
And also i can design for you finished product, including advisory solution and optimal cost.
PRODUCT DESIGN FIELD:
+ IOT Devices: High end sensor board, Wearable
+ Application Board for MCU, MPC
+ Telecommunication and communications Device
+ Research and Evaluation board
+ Industry devices
PCB DESIGN SKILL:
+ Schematic Design
+ 2 layers, 4 layers design layout. RF design. High Speed design
+ MCU: ARM Cortex 32bit, AVR 8 bit
+ Connectivity design: GSM, BLE, WIFI, LORA, GPS, RFID
+ Interface: USB, enthernet, RS232/485
+ Sensor: Electrochemical sensor, 1-wire sensor, High end analog sensor....
-Development Tools & Application
+Altium Designer, PADS, Allegro, Eagle, Kicad