Comprehensive Fitness Tracker App Development

I am aiming at launching a mobile app to primarily aid in tracking different fitness activities for my startup. The ideal candidate will create an app catering to runners, weight lifters and yoga enthusiasts. For an enhanced user experience, the app should be able to log vital metrics like distance covered during a run, workout duration, and calories burned across all activities. Prior experience in developing fitness apps will be preferred, and proficiency in integrative technology for accurate data aggregation is required.