This is Mareike adding on to this question: From my knowledge there are a lot of jobs that are not within research at Antarctic (and I guess Artic) research stations: e.g. Rothera Research Station has seasonal staff for air field operations, field guides, which are mainly coming from a mountaineering/climbing background to keep research and operations teams safe in the field, but also general assistants who keep the station running and organise kitchen, cleaning, supply and logistics. Some of the jobs will only operate in the summer season (e.g. airfield, some of the field guides), but some of the jobs will stay and overwinter as well (field guides, a chef, generator mechanics, ...).