Teaching Fellow, Harvard University (1971-73);

 

Member of the Eritrean People's Liberation Front - worked in military, political and administrative fields (1973-91);

 

Ambassador of Eritrea to Ethiopia and the AU (1993-96); Eritrean Special Envoy to Somalia (concomitant as Ambassador to Eth and AU - 1991-95);

 

Eritrean Special Envoy to the Great Lakes Region (1996-1997); Eritrean Permanent Rep to the UN (1997-2001);

 

Chairman, UN Committee of Experts on Afghanistan (2001); Director, Africa 1 Division, UNDPA (2003-2005); Deputy Special Representative of the UN Secretary General (DSRSG), UN Mission to the DRC (2005-07); Assistant SG for Political Affairs (2007-2009); SRSG, UNMIS (Sudan) (2009-2011); Special Envoy of the SG for Sudan and South Sudan (2011-2015); SRSG and Head of UN Office to the AU (2013-18);

 

 Currently Senior Advisor, Centre for Humanitarian Dialogue (Geneva); Counsellor, Dragoman Global (Sydney); Advisor to the Chairman of ECONET Holdings, an African communications company;

 

Independent Consultant on Peace, Security and Development in Africa (2018-present).