Do I need to wait till the end of my training post/my probationer year before applying for permanent jobs?
No. By Easter you will have had an indication from your headteacher whether you are on target to meet the Standard for Full Registration (SFR). If you are, you would be able to apply for permanent posts but you should make it clear to the local authority that you have not yet reached the SFR but that you are on course to do so.