Hello,
I saw you need an embedded systems engineer for your PCB project. But IoT is special, and the success of your project depends on having solid knowledge in electricity and communications - so there's a lot at stake in getting this right, and imagine you're looking for someone who 'gets' how important this is to you.
I focus on PCB and circuit design, but I approach it a little bit differently than most. Since my client's jobs are all about integrating their projects on the cloud, my job is to help them by producing professional designs that not only look great but also implement a design strategy that makes it easier to integrate your prototype with other technologies like cloud computing, data analytics, machine learning, etc.
Over the last five years, I developed IoT projects based on microcontrollers like STM32(and other ARM Cortex M), ESP32, ESP8266, and SoM(systems on modules) like Raspberry Pi in C/C++(FreeRTOS), and sensors and actuators with interfaces such as i2C, SPI, UART, CAN, etc. which gives me the confidence I can help you.
Best Regards
Luis
PS.
Shot me a message with timeslots you're available today, and I can run you through it on a call together.