Thomas worked for the Norwegian Barents Secretariat between 2003 and 2015. Between 2009 and 2015 he was the editor of BarentsObserver. Before that he worked 12 years for the Bellona Foundation’s Russian study group, focusing on nuclear safety issues and general environmental challenges in northern areas and the Arctic.
Thomas has been travelling extensively in the Barents Region and northern Russia since the late 80’s working for different media and organizations. He is also a guide at sea and in remote locations in the Russian north for various groups and regularly lectures on security issues and socio-economic development in the Barents Region. Thomas Nilsen studied at the Norwegian University of Science and Technology.