GPS Device for Athletic Performance Tracking

I'm searching for an experienced electronics engineer to design and prototype a GPS device for tracking athletes, specifically within a soccer context, then we will apply it to other sports. This device should include features such as: - Real-time tracking: to monitor athlete's position and movements - Distance measurement: to assess the total and relative distances covered during a match or training session - Heart rate monitoring: to determine physiological load and ensure fitness levels are maintained or improved -Must send the information to a cloud backend that we will develop to make reports We also need the device to calculate the following metrics: - Speed: to understand athletes' pace and how it fluctuates during a game - Distance Covered: to comprehend the total distance and patterns of movement - Acceleration: to measure agility, reaction time and potential performance improvement areas Battery-wise, the GPS device must be capable of functioning for a 6-hour stretch. Ideally, potential freelancers would have experience in sports performance technology, electronics engineering and a robust understanding of athlete monitoring metrics. Additionally, experience journeying a tech product from conceptualization to prototype would be beneficial. Your expertise will greatly contribute to the development and success of this project.