Usps careers. The Explore featured open positions in maintenance, drivers, sales, service, and more at the United States Postal Service. The website is temporarily unavailable. . Try visiting another website to make sure you are connected. Most likely causes: The browser failed to download files. Restart the application. Learn about the benefits, duties, and requirements for each job and apply online. usps. com The USPS hiring process involves multiple steps. This problem can be caused by a variety of issues, including: Internet connectivity has been lost.