Embedded Electronics Engineer Needed – Custom Automotive Volume Knob Controller

I am looking for an experienced embedded electronics engineer to design a custom hardware and firmware solution that adds a physical rotary volume knob to an aftermarket car stereo. The goal is to create... (Budget: €45 - €60 EUR, Jobs: Digital Signal Processing, Electrical Engineering, Electronics, Embedded Systems, Firmware Development, PCB Layout, Product Design, STM32)