noun
family day care provider
Official term for a person who provides child care in their own home, often under a municipal system. Equivalent to a registered family day care provider.
彼女は市の家庭福祉員として、自宅で子どもを預かっている。
She works as a municipal family day care provider, looking after children in her own home.
保育士 is a certified childcare worker usually employed at a nursery school, while 家庭福祉員 provides care in a home setting.
Compound of 家庭 (family/home), 福祉 (welfare), and 員 (member/personnel). A modern administrative term.