AT&T

Face to face, a very good set of questions that are really used in the day-to-day activities of every senior software engineer. Very to-the-point questions and expected generic answers.

Detailed phone screen interview. It started with explaining my current work and then moved to technical areas. Telecom domain experience is helpful, such as OSI layers, security, IPs, and subnets.

The interview process is a multi-stage evaluation to assess a candidate's skills and cultural fit, typically starting with a screening and moving through several rounds of interviews. Key stages include: * Initial phone screenings * Formal intervie