Your interviewer is asking whether you can explain how you are a good fit for them and how they are a good fit for you. This question can easily be answered by researching their website, identifying the value propositions they advertise in their recruiting efforts, and aligning your goals with theirs. For example, their careers pages ask, "Are we a good fit for you? Like embracing change? Enjoy meeting new people? Think outside the box?" As you can see, they tell you the qualities of their ideal candidates and repeatedly showcase what life is like in their unique working environment.

"We've rejected traditional hierarchies around here. If you need something, we encourage you to go and seek it, from anyone who can help. It means you'll meet all kinds of people in pursuit of excellence. We're at the cutting edge of our field. We don't have all the answers on how to solve our customer's problems. So you're working in uncharted waters and we like to test new ideas wherever we can. Things move quickly at Klarna. And that includes every part of life here. So if you like being part of a dynamic workplace, you're a good fit. "