I received an email from USPS to schedule an interview. The interview was with the manager. It took about an hour to discuss what my background was and what the job duties were

I applied via the USPS Website and waited a couple of months for an interview invite. The interview was relatively welcoming, with a description of duties, and I was asked about my experience and relevance to the role. Nothing too difficult. I recommend brushing up on what's on your resume and what is related to the role. Be ready to talk about what you bring that's relevant.