Part-time overnight jobs can focus on providing IT support or customer service, working in a 24-hour grocery store or food service business, handling overnight security duties, or working an overnight shift in the manufacturing industry, to name just a few. Part-time jobs involve working for less than 40 hours per week. Such positions typically have an hourly wage. Night positions are also available in the emergency services and healthcare industries. Your responsibilities in an overnight medical and emergency position include having a flexible schedule so that you can cover vital positions within a hospital when needed.