Decomposing the Prompt

Concepts: paEltVsEtl, paSparkExecutionModel

Decomposing a pipeline into five layers is expected - it's table stakes. To score 'strong hire,' you need to go deeper. The key signal is recognizing that the prompt is underspecified on purpose, and using that ambiguity to demonstrate platform thinking. From Pipeline to Platform The shift from good to great is the shift from 'I'd build a pipeline for this use case' to 'I'd build a platform that serves this use case and the next ten.' When the interviewer says 'design a pipeline for clickstream ingestion,' the weaker answer is a specific Kafka-to-Spark-to-Snowflake flow. The strong answer is: 'Clickstream is the first consumer, but I'd design the ingestion layer as a self-service framework that any team can onboard to. Here's how I'd handle schema registry, access control, and cost attri