A term "Shitsuji" generally means a person who oversees a clerical job, and in the case of prestigious families or temples/shrines, it means a person who presides over household affairs or administration.
執事（しつじ）は、一般に事務を管轄する者を意味し、高位の人物の家や寺社で家政・事務を執りしきる者を指す。