Your question is Past Experiences Deep Dive. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Explain your past experiences and walk through a detailed example of what you built and why. Focus on a project where you personally made meaningful technical contributions, clarified an ambiguous need, or made important trade-offs. Explain the problem, your responsibilities, how you collaborated with others, and the outcome. Be prepared to discuss what you would change in retrospect.