[danpalmer]

I generally think of "FinTech" as startups/scale-ups working on finance related products, and they're not too different.

There's quite a difference with what I think of as pure-finance, companies that aren't producing a tech product, but are using tech to make money with financial services, or betting on the markets in various ways.

As for the problems, I was once in an interview given a coding task of moving money around a network of companies based on tax rules. Fun.