- Editor of ICITNS proceedings 2003, ICIT proceedings 2005, 2007, 2009, 2011, 2013 and 2015.

- General Chair of (ICITST-2008), June 23–28, 2008, Dublin, Ireland (www.icitst.org)

 - General Chair, IEEE Conference on Communication, Science & Information Engineering CCSIE 2011, London, UK, http://www.ccsie.org/index.htm

- International Chair: (ICITST-2010); the 5th International Conference for Internet Technology and Secured Transactions, November 8-11, 2010, London, UK, http://www.icitst.org/Program%20Committees.html

- International Co-Chair, International Conference on Information Society (i-Society 2011), London,  http://www.i-society.eu/Program%20Committees.html.

- Program Chair of ICITNS 2003,  ICIT 2005, 2007, 2009,2011

- Program committee: DepCos 06,09,11, Poland. ICTA’07, Tunisia, MISC2012, Algeria

- Technical committee of ACITs:  2001(Jordan), 2002(Algeria), 2003(Egypt), 2004(Qatar), 2005(Jordan).

 - National Organizing Committee, IMCL 2006, 19-21/4/2006, Jordan.

- Session Organizer, WSEAS; ACOS’06, China.

- International Program Committee IMCL 2009, April/2009 Jordan.

- Publicity Committee: AICCSA 2009, May 10-13, Rabat, Morocco.

 - International Program Committee DepCos 09, Poland.