Timed mock · Low-Level Design

Design a CI/CD Pipeline for a Monorepo

45 minutes, split the way the real round is. Answer first, then compare.

Interview clock45:00

Clarify 5mDesign 20mTrade-offs 10mFollow-ups 10m

The interviewer says

Design the build and delivery pipeline for a monorepo holding about 200 deployable services, worked on by a few hundred engineers who land several hundred commits a day. Services share libraries heavily. The main branch must stay releasable, and developers should not wait an hour for feedback. Decide what gets built and tested on each change, what runs before a merge and what runs after, and how an artifact reaches production.

1. Clarify · 5 min
2. Design · 20 min
3. Trade-offs · 10 min
4. Follow-ups · 10 min

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