www.selfstorageservicesinc.com. Self Storage company is looking for an Assistant Manager to work part-time on Sundays 10am-4pm and on Mondays 9am-5pm in our Upper Marlboro, MD location. The ideal candidate will be reliable, self-motivated, have a customer-oriented personality with strong communication, interpersonal and problem solving skills. Interested candidates must be proficient with Microsoft Office and navigating the Internet. This is an i...