| 2014-2018 | Head of the Faculty of Political Science at the University of Iceland. |
| 2017 | Leverhulme Visiting Professor, School of Law, Centre for Small States at the Queen Mary University of London |
| Fall 2013 | 'Class of 1955' Visiting Professor of International Studies at Williams College (MA, USA) |
| From 2013 | Programme and Research Director at the Centre for Small State Studies | Institute of International Affairs, University of Iceland |
| 2012-2014 | Deputy Head of Faculty of Political Science, University of Iceland |
| 2009-2013 | Alternate Member of Parliament (Alþingi) for the Social Democratic Alliance |
| From 2008 | Jean Monnet Chair in European Studies, Faculty of Political Science, University of Iceland |
| From 2006 | Professor of Political Science, Faculty of Political Science, University of Iceland |
| 2011-2013 | Member of the Board of the Institute of International Affairs and the Centre for Small State Studies, University of Iceland |
| Spring 2011 | Visiting scholar at the Centre d'études européennes, within Sciences Po, Paris, France |
| Spring 2010 | Visiting Professor at Tallinn University of Technology, Estonia |
| 2001 -2015 | Member of the Board of the Unit of Journalism and Mass Communication, School of Social Sciences, University of Iceland |
| From 2003 | Director of the Summer School for Small State Studies |
| From 2006 | Created and supervision of the Graduate Programme in International Affairs, Faculty of Political Science, University of Iceland |
| From 2008 | Member of the Board of Icelandic Student Services (Félagsstofnun Stúdenta) , a representative of the University of Iceland |
| From 2009 | Created and supervision of the Graduate Programme in European Studies, Faculty of Political Science, University of Iceland |
| From 2009 | Member of the Board of Editors of the academic journal Halduskultuur-Administrative Culture. Published by the Department of Public Administration at the Tallin University of Techonlicy, Estonia |
| From 2009 | Member of the Board of Editors of the academic journal Island Studies Journal. Published by the Institute of Island Studies at the University of Prince Edward Island, Canada |
| From 2015, 2009-2002 | Member of the Board of the Institute for Public Management and Politics, Faculty of Political Science, University of Iceland |
| 2008-2010 | Deputy Head of the Faculty of Political Science, School of Social Sciences, University of Iceland |
| 2006-2008 | Member of the Board of the Icelandic Centre of Asian Studies (ASÍS), University of Iceland and University of Akureyri |
| 2001-2008 | Member of University General Forum, University of Iceland |
| Spring 2008 | Visiting scholar at the Centre d'études européennes, within Sciences Po, Paris, France |
| Spring 2005 | Visiting scholar at the Scandinavian Consortium for Organizational Research (SCANCOR) at Stanford University, United States |
| Summer '04/'05 | Teacher at Bifröst School of Business, Iceland |
| 2002-2006 | Associate-Professor of Political Science, University of Iceland |
| 2002-2004 | Chairman of the Board of the Icelandic Human Rights Office |
| 2001-2004 | Chairman of the Committee on Equal Rights, University of Iceland |
| 2001-2002 | Member of the Board of the Institute of International Affairs, University of Iceland |
| 2001-2002 | Member of the Board of the Icelandic Human Rights Office |
| Summer '01 | Lecturer Part-Time, Department of Scandinavian Studies, University of Washington, Seattle, USA |
| 2000-2002 | Assistant-Professor of Political Science, University of Iceland |
| 2000-2002 | Head of the Department of Political Science, School of Social Sciences, University of Iceland |
| Summer '97 | A research fellow at the Department of Politics, University of Bergen, Norway |
| 1997 | Member of the Board of 'Samtökin 78' the national organisation of lesbians and gay men in Iceland |
| 1996-2005 | Member of the Board of Nordic International Studies Association (NISA) |
| 1996-2002 | Chairman of the Board of the Innovative Fund for Students (Nýsköpunarsjóður námsmanna) |
| 1996-1997 | Member of the Board of the Department of Political Sciences, Faculty of Social Science, University of Iceland |
| 1996-1997 | Member of the Board of the Association of Political Scientists in Iceland |
| 1996 | Member of a Committe in the Ministry of Education which made information society policy for public institutions in Iceland |
| 1996 | Teaching at the Institute for Continuing Education, University of Iceland |
| 1996 | Research projects for the Red Cross in Iceland |
| 1995-2004 | Vice-Member of the Greenland Fund |
| 1995-2000 | Part time Lecturer at the Faculty of Social Sciences, University of Iceland |
| 1995-1999 | Vice-Member of the Board of the Co-operative University in Iceland |
| 1994-1995 | Teacher Assistant at the Department of Government, University of Essex |
| 1991-1992 | Editor of Háskólinn/Stúdentafréttir (The University/Magazine of Students), publisher the Students’ Union, University of Iceland |
| 1990-1992 | A member of the editorial board of ‘Suðurland’, a newspaper in the south of Iceland |
| 1990-1991 | Editor of 'Vökublaðið' a newpaper of a student association, University of Iceland |
| 1990 | Editor of ‘Suðurland’, a newspaper in the south of Iceland |