DraftKings Software Engineer Interview Questions
The questions to prepare for a DraftKings Software Engineer interview. Questions from real interview reports rank first. Updated daily.
Write a binary search function to find a target value in a sorted array.
DraftKingsFind the longest substring with all unique characters using a sliding window.
DraftKingsTests ability to model and implement ranking or selection logic over customer data.
DraftKingsCompute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
Meta
Spotify
Meta ITRank Natural Intelligence products by completed revenue in the last completed quarter using joins, aggregation, and a date CTE.
Natural Intelligence
Chewy
FavorAggregate monthly sales by product category and use LAG to calculate month-over-month changes.
Total Wine & More
Inc.
Benjamin MooreEvaluates OOD skills and ability to explain a non-trivial system design.
DraftKingsTests planning rigor, risk awareness, and ability to translate requirements into realistic delivery plans.
DraftKingsApproach for building fault tolerance into a distributed data pipeline, including retries, idempotency, and recovery controls.
DraftKingsAssesses ability to model hierarchical data and explain structure clearly.
DraftKingsAssesses security fundamentals and safe input handling practices.
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