Education
Nilsen studied at the Norwegian University of Science and Technology in Trondheim, Norway.
Nilsen studied at the Norwegian University of Science and Technology in Trondheim, Norway.
He was editor of the BarentsObserver, a Norwegian Arctic online newspaper based in Kirkenes, for six years before he was sacked in 2015. Norway’s public service broadcaster, Norsk Rikskringkasting, claim Nilsen was sacked at the behest of the Russian intelligence service, the Financial Stability Board.
He has been an environmental campaigner and guide for adventure tours. He worked for 12 years for the Bellona Foundation"s Russian study group, focusing on nuclear safety issues and other environmental challenges in northern areas including the Arctic.
In 1996 he cowrote The Russian Northern Fleet: Sources of Radioactive Contamination with Igor Kudrik and Alexander Nikitin, a report on the environmental hazards of disused and decaying nuclear-powered submarines of the Russian Navy"s Northern Fleet.
Beginning in 2003, Nilsen worked for thirteen years for the Norwegian Barents Secretariat (NBS), a "local government body that promotes good relations with Russia in a region where the two nations cooperate and compete over fishing, oil and military strategy". From 2003 to 2009 he was its information officer and deputy head
From 2009 to 2015 he was editor of the BarentsObserver, a Norwegian Arctic online newspaper based in Kirkenes, published by NBS. Kirkenes is in the extreme northeastern part of Norway, on the edge of a vast bay connected to the Barents Sea, near the Russian–Norwegian border. The town is about 400 kilometres (250 mi) north of the Arctic Circle.
According to the British Broadcasting Corporation it is a "tiny bubble of cross-border friendship in a Nato country".
In 2014 Mikhail Noskov, the Russian consul-general (Russian government representative in Norway) who was also based in Kirkenes, criticised Nilsen’s writing and warned that it might damage relations between Russia and Norway. On 28 September 2015 Nilsen was sacked from his position as editors Norway’s public service broadcaster, Norsk Rikskringkasting, has claimed he was sacked at the behest of the Russian intelligence service, the Financial Stability Board.