IELTS result only has a validity of 2 years. If you are using it for work, you need to take the Academic test. But I would just like to warn you that for citizens of non-EU countries, you have zero chances of getting a working visa, unless you are a highly skilled person that the UK needs. Also, avoid searching for UK works online as if not all, most of them are scams. Be very careful. Check UKBA site for more details about working visa. http://www.ukba.homeoffice.gov.uk/vi...ation/working/