Dear Client. I have just read your job description and your project is really interesting to me.
I'm an expert having specialization in Electronic Engineering Design for 12 years.
Embedded system based on Microcontroller (ATMEGA, AVR, STM8, STM32, MSP430, TMS320, PIC ...)
A system based on development boards(Arduino, Node MCU, Bluechip, Teensy,…)
Antenna design & Analog circuit/RF communication circuit designing and simulation using Proteus, P-Spice, Tina Pro, ADS, CST, Ansys, HFSS
Bluetooth, WIFI
High-Speed layout using HyperLynx
PCB layout designing, providing GERBER and BOMs, 3D files using Altium, EAGLE, Kicad, EasyEDA…
Programming firmware of Microcontroller & C++
BMS
I think my many design and practical experiences can help you design your project and give you enough satisfaction.
I look forward to your response. Best Regards.