Hart has put his hand up to help Shrewsbury's goalkeepers as they seek to make a new, permanent goalkeeper coach appointment.
Shrewsbury are seeking a new hire after Brian Jensen's departure.
Gavin Cowan, Shrewsbury's head coach, said: “It’s nothing more simple than a mate trying to help mates out.
“I have spoken to Joe recently when I got appointed. Dave was in dialogue with him and we have been speaking about how just sometimes appointments take a bit of time.
“We were picking Joe’s brains on goalkeeper situations and it’s just a mate wanting to help mates. He offered to come down and be a part of what we are doing. It is just another confirmation of the class act that he is.”
Cowan continued: “Personally, he is a fantastic guy. He’s not too far away - I know he is a busy guy - but it has still taken a lot to be here. But it was the first thing that he wanted to do - ‘can I offer my help and expertise’.
“He will be coming in to help us and really try to drive us towards three points.”