"I'm delighted to be able to bring someone of Alan's calibre to the club," Academy manager Bobby Downes told the club's official website.
"He has been a part of the Irish management team for a year now and brings with him a wealth of experience.
"Both roles are part-time and we will be able to cover the position on the few occasions he is with Ireland.
"We know Alan well, he is a popular guy and we hope that during his time with us we will be able to bring a goalkeeper though to the first team."