Your question is Deep Dive on a Proud Project. 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).
Describe your proudest engineering project, diving deep into the specific architecture and your individual technical contributions.
Choose one specific project and explain the problem, constraints, architectural decisions, and your personal ownership. Be clear about what you designed, implemented, influenced, or changed rather than describing only the team's work. Include measurable results, trade-offs, setbacks, and what you learned.