I have been working internationally for a number of years, including working on the school leadership team. I am interested in "moving on up" to Deputy Headteacher / Vice Principal, Head of Phase, or possibly even Headteacher of a small school. Unfortunately, there are no such opportunities in my current school. Which qualifications do I need, or which qualifications would be advantageous for these positions? What qualifications are required for the equivalent in UK schools? I am really starting to think about Professional Development and would appreciate any advice available. Thank you in advance.