Lemma joined Ethiopian on September 06, 1999 as Marketing Agent. He has been serving in various managerial positions including Lead Central Reservation Control Agent, Supervisor Central Reservation Control and Revenue Management, Area Manager Burkina Faso, Malaysia and France.

In December 2017, Mr. Lemma was appointed as Director Global Call Center, and A/Managing Director Ethiopian International Services since September 01, 2019.

Currently, he is serving Ethiopian as Chief Commercial Officer as of April 2022.

He holds BSC Degree in Civil Engineering from Addis Ababa University, Faculty of Technology, MSC in Geotechnical Engineering from Addis Ababa University, Faculty of Technology and MSC Degree in Integrated Marketing Communication from University of Mississippi.