Software Developers Individuals in the professions above are considered to have skills that are critical to the economy. They may apply for a Critical Skills Visa if they meet existing requirements, including holding a diploma or a tertiary education degree and registering with a local body that regulates the profession. The Critical Skills Visa has a five-year validity. South Africa is updating its Critical Skills list to stimulate its economy, which is experiencing low levels of growth due to a lack of skilled workers. Consequently, the government is updating its Critical Skills list to attract foreign workers. What Should Employers and Applicants Know?