Automated 4WD Rover Development

I'm seeking an experienced embedded software developer to create a 4-wheel drive rover that autonomously follows an elevated platform track.

Key Requirements:
- Control Platform: Arduino, Raspberry Pi, or PIC controller
- Track Type: Elevated platform (like rope or elivated metal strip)
- Detection Mechanism: Limit switches with rollers

Ideal Skills & Experience:
- Proficient in PID algorithm
- Expertise in embedded software development
- Strong problem-solving and robotics knowledge

Please provide a detailed proposal including your experience and approach.

NOTE : the person shall prepare comlete model also perform test as required (this needs to be experimented outdoor), during discussion i will provide more info on the same.