That role isn't in my dept, but I believe the location isn't fixed. Quickly checking Greenhouse, I think it's this one https://boards.greenhouse.io/grafanalabs/jobs/5052765004 but feel free to apply from the EU as the Hiring Manager will see it.

You should know that we try to hire evenly around the world and across timezones such that it balances on-call and allows us to create on-call schedules that align to people's daylight hours. It's not my team, so I don't know precisely their balance right now, and it may be that they do seek someone in the Americas time zones.