If you don't have any luck applying directly to schools, you could try working through an agency (eg. day supply/relief or medium-/long-term temporary positions). Once a school gets to know you, they might be more likely to take you on permanently/help put you through QTS for OTT (which must be done within four years of first teaching in the UK if you want to continue teaching there). Along the same lines, if a school employs you as a TA, then they might later be able to offer you a teaching job (not sure whether your work as a TA would count towards your four-year limit for QTS). If you do get employed directly by a school, you'll be paid on the 'unqualified' teacher scale, which I think is not much more than a Teaching Assistant. You could try independent/private schools - they can pay you what they like - but depending on how long you plan to stay in the UK, might not put you through QTS for OTT, which requires some state-school teaching. Good luck!