A recruiter asked me for my resume. I sent my resume and then the recruiter selected a few applicants including myself and sent our resume to AT&T. Within a week I got an interview with AT&T. The interview was for an hour including introducing each other. The whole interview experience was very good. There were more than one interviewer including the project manager. They asked me about my experience and some technical and non-technical questions. A day after they offered me the job.