The interview process depends on the domain or projects a person is being interviewed for. But mostly, it will involve a minimum of three rounds:

• A written test or Hackerearth/Hackerrank assessment.
• A technical interview (in some projects, two rounds of interviews).
• An interview with the manager and HR.

For the experienced professional, questions will be based on application design patterns and architecture principles, with in-depth technical explanations of how and why.