Backend Software Developer with .NET

I've got 6+ years of experience doing backend software development mainly using the dotnet stack. 4+ years building backoffice software in a stock exchange/clearing house environment (trading/clearing/settlement/payments/FIX/SWIFT/bank integration, etc.), and 2 years working on the backend of a public transit application. I'd love to stay within the payments/finance space but I'm a quick learner and open to something new.