- Researcher: PhD, Title of Docent of French (University of Helsinki)
- Politeness in Finland and in France
- Forms of address (tu–vous, sinä–te, etc.)
- Teacher: French language, linguistics and translation
- Science communicator:
- Blogger (in Finnish)
- Podcaster (in Finnish): Ranskaa raakana! (‘Raw French’)
- Twitter: @johannasosavi (mostly in Finnish)