Ziyi demonstrated clear structure, strong breadth across requirements, and thoughtful trade-off discussions. Timing and communication were well-managed, and she connected architectural choices to reliability and scalability concerns.

Areas of Strength

• Enumerated all functional and non-functional requirements clearly
• Proactively identified scheduler bottlenecks in async trigger interactions with the executor
• Proactively addressed fault tolerance mechanisms and retry policy design
• Proactively drove deep-dive technical discussions

Areas for Improvement

• Clarify CI&CD workflow data Schema: Define standardized YAML structure for pipeline definitions and stage relationships, talk more about how to model and support retry, and failures.
• CI&CD Dependency Management: Implement dependency tracking and resolution within pipeline YAML configurations, make it clear and detailed for deep dive.
• Architecture Migration: Transition from executor-based jobs to orchestration-based workflow engine
• Log Streaming: Partition logs into chunks and stream real-time output to clients

Suggestions

When choosing between architectural options, tie the decision to real incidents and metrics from past experience. Explain the problem, your approach, and the measurable impact—this signals practical judgment and ownership, which is highly persuasive for interviewers from OpenAI.