Professionals without Korean skills can find opportunities mainly in multinational companies, IT and software roles, engineering, research labs, startups, and English education. Many tech and R&D teams operate in English, especially in fields like AI, data science, and semiconductor development. Creative roles in game development, design, and digital marketing may also allow English-based work, depending on company culture. However, career growth improves significantly with Korean language proficiency. While entry is possible without Korean, long-term opportunities expand greatly when professionals develop basic communication skills.