DoorDash Domain Knowledge & Interest Questions
Domain knowledge about DoorDash as an on-demand delivery marketplace, including how the platform handles order routing, courier (delivery partner) management, merchant/restaurant relationships, pricing and incentives, demand forecasting, fulfillment operations, and competitive positioning. Covers product and operations considerations unique to DoorDash, regulatory/compliance aspects, and strategic implications for marketplace design, growth, and user experience.
HardTechnical
0 practiced
A large merchant experienced an outage preventing DoorDash orders from being accepted for several hours. Draft a business continuity and incident response plan that covers detection, merchant and courier communication, failover options (alternate carriers or merchant-run pickups), reconciliation and replay of orders, and calculation of SLA credits or refunds.
MediumTechnical
0 practiced
Describe an end-to-end data pipeline to capture event streams from order placement through delivery for analytics and ML training. Detail ingestion, stream processing vs batch, storage choices, schema evolution, feature store considerations, and data quality checks a Solutions Architect should propose.
HardSystem Design
0 practiced
Define an SLO strategy for a DoorDash-like dispatch and routing service. Propose key SLIs, SLOs, error budgets across the order lifecycle (order acceptance, assignment latency, routing correctness, delivery ETA adherence), how to enforce them, and remediation and communication processes when SLOs are breached.
HardSystem Design
0 practiced
Architect a low-latency global order-matching service that must support 100k matching decisions per second with millisecond latency targets. Describe componentization (state store vs decision layer), data stores, caching, consistency trade-offs, backpressure handling, and how you'd ensure fairness and stability under load.
EasyBehavioral
0 practiced
Describe a time (or a hypothetical scenario) when you advised a client to choose a third-party marketplace integration (like DoorDash) over building in-house delivery. Use the STAR structure: Situation, Task, Action, Result. Explain the criteria you used (capex/opex, time-to-market, control) and how you quantified the recommendation.
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