Your question is Project Architecture 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 the architecture of a recent data engineering project, including the tech stack you used and the key follow-up decisions you made.
Use a real project you worked on. Cover the main code and data layers, the responsibilities and dependency direction of each layer, the tools used for ingestion, transformation, storage, orchestration, and testing, and the important decisions made after the initial implementation.