Motivation & fit
A red-flag screen. Frame the move toward what you want next, never as an attack on your current employer.
Why it is asked
This question is mostly a risk check. The interviewer is listening for warning signs: do you trash employers, are you running from something rather than toward something, will you say the same negative things about them in two years. The content of your answer matters less than its orientation, which should be forward and positive.
Frame the move as growth toward what this role offers rather than escape from what your current one lacks. Even if the real reason is a bad manager or a stalled team, translate it into the positive: you are looking for more scope, a different kind of problem, a bigger scale, a domain you care about. Then connect that want directly to this opportunity, which doubles as a why-this-company signal.
Stay honest and stay brief. A long, detailed grievance is a red flag no matter how justified it feels; a crisp, forward-looking sentence or two is exactly what they want to hear.
The signal
Worked example
Scenario: Engineer who has outgrown the scope. Read it for the shape, then swap in your own story.
I have grown a lot in my current role and I am grateful for it; I owned a service end to end and learned how to run something in production.
But the systems there top out at a scale I have now seen most of.
I want to work on harder distributed-systems problems at a larger scale, and that is simply not on the roadmap where I am.
This role is squarely about that class of problem, which is why I am making the move now rather than waiting. It is a move toward the work, not away from the team, and I would happily work with most of them again.
Answer skeleton
I have grown a lot and I am grateful for it. What I want next is [growth want], and that is not on the table where I am. This role is exactly that, which is why I am moving toward it now.
Avoid these
By role
Scope, scale, or a specific technical domain are clean, credible reasons. Tie them to this role's roadmap.
Wanting ownership of a bigger problem space or a different stage of company reads as ambition, not flight.
Seeking a larger org to build, or a healthier scope of leadership, works if framed as growth.
Be ready for
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Keep going
Behavioral rounds are only half the loop. See the technical and behavioral questions for your exact role, and when an offer lands, check it is competitive with the salary comparison tool.