An assistant dean usually works in a postsecondary education setting. In this career, you usually work in the administrative department at a college or university under the direct or indirect supervision of a dean. Your job duties and responsibilities could vary from school to school. You may be responsible for student discipline, data collection, hiring administrative and academic staff, and supervising training programs for new staff members. You may plan or organize specific aspects of university operation and offer input into budget planning and approval of grants or funding.