The 47-year old had been at Shelbourne last season, splitting his time between there and the FAI where his Development role included assisting the national under-21 side.
A vastly experienced Coach throughout the league, Reynolds is no stranger to the Brandywell having spent the 2008 campaign in the ‘home’ dugout alongside Stephen Kenny.
And Ruaidhri Higgins is in no doubt that the new man will prove invaluable as he prepares his squad for next season’s challenges.
“Alan is a fantastic coach and it is important for me to have someone of his quality and experience here,” said Higgins.“He knows the league inside out and will have the trust of the players, which is key.
“He’s been here before which always helps as well, and he will bring plenty of ideas and energy to the club.
“We are comfortable with where we are in our preparations for the new season and are looking forward to getting going again in the coming weeks ”