Adding more information since yesterday. The location requirement can be relaxed, although we're currently doing this on a case-by-case basis. (We're still figuring out how to adapt longer term to a potentially plague-ridden world.)
Our hiring team is aware of the context. You should contact them directly at hiring@smarkets.com - and they'll take it from there.
It is, yes. But considering how the situation with the plague has progressed, and how physical location means slightly less than it used to, I'll check with the team tomorrow.