Problem
Design an end-to-end webhook delivery system at Cardless that reliably notifies merchant partners of transaction events, ensuring at-least-once delivery.
Practicing as: Software Engineer interview at CardlessHi, I'll play your Cardless interviewer for the Software Engineer role. Candidates describe these interviews as often stressful and moderately difficult, so expect me to be direct and to the point. Take your time with the question above and answer like we're in the room.
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