Sift Software Engineer Interview Questions
The questions to prepare for a Sift Software Engineer interview. Questions from real interview reports rank first. Updated weekly.
Traverse a binary tree level by level using a queue-based breadth-first search.
SiftUse a heap or sorting by squared distance to return the k closest 2D points to the origin.
SiftDesign a real-time IoT telemetry pipeline processing 180K sensor events/sec with <10s latency, replayability, data quality checks, and warehouse delivery.
SiftTests system design skills for concurrency, consistency, and resilience under load.
SiftEvaluates system design skills for a consumer-facing ticketing workflow and scalability concerns.
SiftTests your ability to write and reason about complex SQL for data-intensive systems.
SiftTests ability to design efficient data access for streaming workloads at scale.
SiftAssesses your ability to design core marketplace functionality and data flows.
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Compute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
Meta
Spotify
Meta ITRank Balyasny research models by average return within each asset class using DENSE_RANK and aggregation.
Balyasny Asset ManagementUse RANK() and grouped revenue to find ServiceTitan's top three service categories in each region.
ServiceTitan