Also they are some interviews which will be on skype.
In all honesty, I wouldn't work for someone that wanted to interview me over Skype. Fair enough, if you can't be in the country for the interview - but a telephone call would make far more sense (and would show that the school has the money to afford such calls!).
Be very wary of anyone who seems desperate to get you to agree to work there and who deflects any questions that you have - the best schools don't need to beg people to work.
And don't be afraid to negotiate on salary :) In fact, don't be afraid to ask awkward questions about your potential contract and conditions - bad schools will always operate under dubious arrangements, whereas good schools will have nothing to hide.
Where are you planning to work?