How long have you been considering changing jobs?

This question is usually asked to understand the candidate's motivation and readiness to change jobs. It is important to answer honestly, but also to highlight positive aspects. For example, you can say that you have been considering options for a few months now to find a project that better aligns with your professional goals and interests.

Example answer:

"I started considering changing jobs about 3 months ago because I want to develop in the field of test automation and I am looking for a project with more interesting tasks and growth opportunities."