Duffel Interview Questions
The questions to prepare for Duffel interviews, across all roles. Questions from real interview reports rank first. Updated daily.
Assesses understanding of data partitioning strategies and their impacts.
Tests system design for external service integration and request management.
Evaluates strategy for scaling a service-heavy, search/booking workflow.
Tests knowledge of the web request lifecycle and networking basics.
Evaluates knowledge of modern HTTP protocols and performance considerations.
Tests caching strategies and cache-busting techniques for static assets.
Tests judgment under pressure: making an unpopular decision, explaining trade-offs clearly, and maintaining team trust and execution.
Assesses understanding of secure transport protocols.
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