Sift Software Engineer Interview Questions
The questions to prepare for a Sift Software Engineer interview. Questions from real interview reports rank first. Updated daily.
Use a heap or sorting by squared distance to return the k closest 2D points to the origin.
SiftTraverse a binary tree level by level using a queue-based breadth-first search.
SiftDesign a real-time IoT telemetry pipeline processing 180K sensor events/sec with <10s latency, replayability, data quality checks, and warehouse delivery.
SiftTests technical ownership and communication through a concrete architecture decision, with emphasis on trade-offs, judgment, and lessons learned.
SiftTests your ability to write and reason about complex SQL for data-intensive systems.
SiftAssesses your ability to design core marketplace functionality and data flows.
SiftTests system design skills for concurrency, consistency, and resilience under load.
SiftTests ability to design efficient data access for streaming workloads at scale.
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Identify Sift users with over three recent failures before a successful transaction within ten minutes.
SiftCompute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
Meta
Spotify
Meta ITCalculate daily Khan Academy seven-day rolling retention using CTEs, deduplication, date ranges, and a self-join.
Khan AcademyBBlizzard Entertainment
Andela Products