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Daily Payment Log Pipeline
A hard Pipeline Design interview practice problem on DataDriven. Write and execute real pipeline design code with instant grading.
- Domain
- Pipeline Design
- Difficulty
- hard
- Seniority
- staff
Problem
A fintech company processes billions of payment transactions per day across three regions: US, EU, and APAC. Each region writes raw payment logs to its own object storage bucket. The data team needs a batch pipeline that runs daily, ingests the previous day's logs from all regions, deduplicates events, aggregates to a merchant-level summary table, and makes results available for global reporting by 6 AM UTC. Design this pipeline.
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