noun
Refers to a professional who provides care for the elderly or disabled, typically in a nursing home or home-visit setting. The English gloss 'nurse' is misleading; a 介護士 is not a licensed medical nurse (看護師).
彼女は特別養護老人ホームで介護士として働いている。
She works as a caregiver at a special nursing home for the elderly.
介護士の資格
I'm studying to get a caregiver certification.
ヘルパー is a more casual term for a home helper, often used for non-certified assistants, whereas 介護士 implies formal training or certification.
Compound of 介護 (care, nursing) and 士 (person with a certain qualification).