Embedded Systems Engineer Needed to Build and Test Softub Controller (Hardware + Firmware)

Looking for a freelancer to build and test a Softub controller based on this GitHub project: [login to view URL] The project involves both hardware and software implementation, requiring experience with embedded systems, microcontrollers, and C++. I need someone who can source the necessary components, assemble the hardware, flash the firmware, and verify functionality. I may want maybe 5 or 6 built, Qty tbd