seisoin

Seisōin, written in kana as せいそういん and in kanji as 清掃員, is a Japanese term used to refer to a person who performs cleaning and upkeep tasks in facilities. In English-language contexts, the term is often transliterated as seisōin or translated as janitor, custodian, or cleaner. It denotes a role focused on maintaining cleanliness and basic maintenance within a building.

Duties typically include cleaning floors and surfaces, dusting, waste and recycling management, restroom sanitation, window cleaning, and restocking supplies such as soap and toilet paper. Seisōin may operate cleaning equipment like vacuum cleaners, floor scrubbers, and cleaning tools, and they follow safety guidelines for handling chemicals and wet floors. They may also report maintenance issues, replenish consumables, and assist with basic safety and security tasks.

Work settings vary and can include offices, schools, hospitals, retail spaces, and residential buildings. Personnel may be employed directly by organizations or work for cleaning service contractors. Shifts can be daytime, evening, or overnight, and roles can be full-time or part-time depending on the employer and country.

Training and qualifications for seisōin are often entry-level, with on-the-job instruction common. Key skills include reliability, attention to detail, physical stamina, and basic familiarity with cleaning chemicals and equipment. In Japan, the term emphasizes a general, practical cleaning function rather than a specialized professional title, though the exact duties and requirements can differ by workplace and contract.