There are many good managers here in this forum but if you are to ask my opinion I think it's better if you just automate your bounty campaign instead of hiring one. There are several platforms that offer that kind of services such as BountyOx, BountyHive, and BountyPortals. Try checking them out if you are interested.
Thanks for the feedback. I was also considering doing thing. However, we are a little short on time and the process is a little troublesome. For the first go we will stick with a manager.