营业部主任英文

sales manager营业[销售]主任sales director营业副经理sales representative商品经销代理看来您应该用sales manager

营业部总监Sales Director

Sales director Marketing Director市场总监，营销部主管，Businesse Director是商务主管，它注重于商业方面欢迎上百度hi找我。

酒吧员 bartender收银员 cashier营销部主任 director of marketing department

Director of Operation Dept.其实主任有多种说法，head/director/chief都可以说的，用director听上去大些其他主任的一些说法供参考：teacher in charge of a class班主任director of the general office办公厅主任director of a workshop车间主任director of the department of translation and interpretation翻译室主任chief accountant会计主任chief of teaching and research section教研室主任head of the neighbourhood committee居民委员会主任dean; dean of the faculty系主任Minister in charge of the State Planning Commission国家计划委员会主任Director of the General Political Department总政治部主任director of teaching affairs教务主任dean of personnel人事处主任dean of studies教导主任a department head部门主任director of the office of foreign affairs外事办公室主任