Yes, all foreign nationals require a valid work visa and residency permit to work legally in Qatar. The hiring company is responsible for sponsoring the visa, handling documentation, and completing formalities such as medical tests and fingerprint registration. Working without a valid visa is strictly prohibited. Once approved, employees receive a Qatar ID, which allows them to live and work in the country. The work visa is typically tied to the employer, and changing jobs requires additional approvals. The visa process is streamlined and generally handled by the employer.