Amenga, was head coach of Nairobi Stima at the beginning of the current season but severed links with the club hierarchy and has thus been out of a job.
He has now, according to Celtic CEO John Oyoo, agreed to join the club to help revive their so far ailing season.
The club is currently at the bottom of the FKF division one, Zone A league.
-I am delighted to announce that Mike Amenga has joined the club in the capacity of head coach. He will take over starting Monday 2 April 2012.
-He has done well with Nairobi Stima and is very highly rated, so we hope his expertise and know how will help take the club in the right direction, Oyoo told Futaa.com.
Amenga has a wealth of experience in coaching, having taken point at the national junior side at some point, as well as working with national team head coaches Zedekiah Otieno and Francis Kimanzi on several occasions.
He will have his work cut out though as Celtic have underperformed so far this term.