Helsinki Institute of Sustainability Science launched a Trainee Programme in 2018. The Institute hires university students every spring and fall to assist in tasks related to e.g. coordination, communication and stakeholder cooperation. The trainee will work with university administration, hence, the knowledge of Finnish is necessary. The internships are between 3 and 5 months in duration. Here you can see who's working currently as a trainee.
The application period for the spring term 2020 has closed, the next round will be announced here later in the spring.