A Switzerland work visa allows foreign nationals to live and work legally in Switzerland for a specific employer and role. It is usually issued as a long-stay (D) visa and combined with a residence permit such as the L or B permit. Switzerland has a quota-based immigration system, especially for non-EU nationals, meaning work visas are granted selectively. Applicants generally require a confirmed job offer, employer sponsorship, and approval from cantonal authorities before starting employment in Switzerland.