Hi,
I have been developing games in Unity since past two years! You can have a look on the reviews I have got from my clients for the work I have done in Unity :)
well, you have mentioned your requirement that task is about adding controls! But is it about controlling characters ?? Or camera?? or vehicle ??
Can you please contact me with more information ??
And yeah! I have a good expeirnce of working on all types of mobile controls in Unity!! I have a strong knowledge of UGUI, which always helps if you want GUI controls!
I have a worked on touch controls too!
Looking forward to work on this project.
Thanks :)