Yes, in most cases. Switzerland has four official languages—German, French, Italian, and Romansh—depending on the region. Proficiency in German or French is often required to communicate effectively with colleagues, customers, and authorities. Many local employers expect at least B1 or B2 level proficiency. However, multinational companies and tech firms may operate primarily in English, especially in Zurich, Geneva, and Basel. While English-only roles exist, learning the regional language greatly expands job prospects, enhances workplace integration, and is essential for fields like healthcare and hospitality. Language skills also support long-term residency and social integration.