DraftKings Software Engineer Interview Questions
The questions to prepare for a DraftKings Software Engineer interview. Questions from real interview reports rank first. Updated daily.
Compute the population variance of an integer list using a numerically stable one-pass algorithm.
DraftKingsDetermine whether a bracket string is balanced using a stack.
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 ITRewrite a slow PostgreSQL reporting query to reduce scanned rows, avoid join multiplication, and return accurate monthly site metrics.
Continental Finance
Capgemini
DISHRank Natural Intelligence products by completed revenue in the last completed quarter using joins, aggregation, and a date CTE.
Natural Intelligence
Chewy
FavorEvaluates 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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