Gro Nystuen is dr. juris and has worked in the Norwegian Ministry for Foreign Affairs from 1991 to 2005. From 1995 to 1997 she was seconded to the International Conference on the Former Yugoslavia and the Office of the High Representative in connection with the peace settlement for Bosnia and Herzegovina, and throughout 1999 to the UN Special Envoy for the Balkans.
From 2005 she was Associate Professor of International Humanitarian Law/the Law on Armed Conflict at the University of Oslo and from 2008 also Associate Professor at the Defence Staff University College in Oslo. In addition to a number of topics covered by public international law and treaty law in general, she has worked in particular with human rights, international humanitarian law and the law of armed conflict, disarmament law and arms control law, arms export control law, constitutional law, peace agreements, international criminal law, penal law and procedural law, and corporate social responsibility. Nystuen is also an expert on international/multilateral legal procedure for international conferences and negotiation processes within the UN as well as other international fora.
She has published extensively on the above issues.
From 2009, she has been Senior Partner at ILPI and from June 2013 she has also been Director of ILPI Centre for International Humanitarian Law.