Video storage and mobile engineer -- 2

I am looking for a video engineer that has experience in building web services for a video storage application. I am looking to pair this person with the actual mobile developer to build an app. I am looking for someone that understands cloud storage and the web services that follow it. I am looking at someone that can suggest or recommend the best way to store data and the best way to save on storage sizes and costs as well. I am not dependent on using aws, I am open to other strategies as well.