I dont know much about the medical field, but from what I can see ''Qualified nurse (band 5 or equivalent) £20,710''
You can find your SOC Code here: (I think it may be 3211) -
http://www.ukba.homeoffice.gov.uk/sitec ... iew=Binary
Later on in the same document, it tells you what the rate of pay should be, so for example, if 3211 is correct, see page 39.
For requirements for ILR as a work permit holder, read pages 44-48 here (
http://www.ukba.homeoffice.gov.uk/sitec ... iew=Binary). If you cannot find a SOC Code to match your job, then read pages 102-104.
I would also recommend requesting an Employment History from HMRC. It takes about a week to 10 days to arrive. (
http://www.hmrc.gov.uk/faqs/nicqemp.htm#9)
Phone 0845 300 0627 (The options will be : 2 ; 3 ; 6). You will need to give them your National Insurance number, and then answer a few security questions.
Ask for an Employment History for the last 5 tax years, including the current year. Ask for this to be broken down according to the tax years. They will ask if you want it to include Pay, TAX, etc. It's up tp you if you want this info on there.
It's an official documentation, and it's a summarised version of your P60's. So, if you have any concerns about missing P60's, or having to find old payslips, this will be your solution. This will have your Employers name on, so if there has been a name change, this shoudl also show on the Employment History. You can combine this with an Employer Letter explaining the name change.