Today, a good level of English allows an applicant in the IT field (and many others) to aspire to better opportunities and salaries, especially abroad, either remotely or with the possibility of traveling.
It is also true that many people do not have validation certificates for their level because knowledge was polished day by day. For this there is an online tool that issues certificates. This is EF SET.
The EF Standard English Test (EF SET) is a free online test designed to match the high technical standards of other standardized tests such as TOEFL or IELTS.
The site sets out to build an assessment solution that not only provides accurate measurements but is also affordable, easy to use, and always available. It is the first free standardized English test for students of all levels, from beginner to advanced.