主要職責包括： (a) 協助家務管理及行政工作；包括編排及監督初級家務員的工作； (b) 安排及打點宴會場地佈置及餐飲工作； (c) 提供私人起居及家居服務； (d) 接待賓客，接聽電話；以及 (e) 安排保養、點算、修補、更換家居用品（包括盛器和餐具）及室內陳設，以及備存家居用品的記錄。 (註一：三級家務員須(a)超時及不定時工作，包括在晚間、周六、周日及公眾假期工作；(b)在宿舍住宿；(c)穿著制服；以及(d)奉派香港禮賓府、粉嶺別墅和其他地方工作。 註二：為提高大眾對《基本法》的認知和在社區推廣學習《基本法》的風氣，所有公務員職位的招聘，均會包括《基本法》知識的評核。獲邀參加遴選面試的應徵者，其對基本法的認識會在面試中以口頭提問形式被評核。除非兩位應徵者的整體表現相若，招聘當局才會參考應徵者在基本法知識測試中的表現。)

Major duties are: (a) to assist in management of domestic services and administrative duties including coordination and supervision of the work of junior domestic staff; (b) to arrange and manage event venues and catering services; (c) to provide personal and domestic services; (d) to receive guests and to answer telephone calls; and (e) to arrange maintenance, stock-taking, repairing and replacement of household items (including tableware and cutlery) and soft furnishing; and to keep record of household items. (Note 1: Domestic Staff III are required to (a) work overtime and irregular hours including evenings, Saturdays, Sundays and public holidays; (b) live in quarters; (c) wear uniform; and (d) be deployed to work in Government House, Fanling Lodge and any other places as required. Note 2: For the purpose of heightening public awareness of the Basic Law (BL) and promoting a culture of learning of BL in the community, assessment of BL knowledge will be included in the recruitment for all civil service jobs. Candidates who are invited to attend the recruitment interview will be tested orally on their BL knowledge during the recruitment interview. Results of BL assessment will be taken into account only if two candidates are considered equal in all other aspects.)