A work visa or work permit is basically the permission to engage in a specific work in a foreign nation. The work permits are granted by the governments of the countries that the employee wants to work in. If you are from Australia and want to work in the United Kingdom, you will have to obtain an EEA work visa. On the other hand, if you are from Canada and want to work in the United States, you will have to apply for a US work visa.
There are three different classifications of work visas which are i-129, h, and l. All three classifications are designed to provide certain levels of access to the United Kingdom labor market. In order to be eligible for an i-129 visa, as an Australian citizen, you will have to demonstrate that you are in need of international experience and skills such as language, computer skills, or science. You will also have to provide a British Nationality certificate and an English Passport. As an Australian citizen, you will be able to work in the United Kingdom after obtaining an i-129 visa. However, it is not compulsory to remain in the United Kingdom once you receive an i-129 visa.
Once you become eligible for an immigrant visa, you will have to obtain a British departure visa. This visa allows you to leave the United Kingdom for employment purposes. If you are from Australia and want to leave to work in the United Kingdom, you will only need a visitor visa. However, if you are from Canada and wish to work in the United Kingdom, you will need to apply for the EEA employment visa. Finally, if you are from New Zealand and want to work in the United Kingdom, you will also need to apply for a NZ work visa. These are the three different types of immigration visas that an individual may obtain based on their qualifications and employment purposes.