Unity game bug fixes and updates

We have a game built in Unity. It is already live and working. We need to fix some bugs and add a few new features (fixes are all things that should be done within 2/3 days as they're all relatively quick and easy whereas the new features might take a few extra days). We're looking to work with someone who understands both front end and back end development. Looking to get it all done and live within 2 weeks.