dunnhumby Software Engineer Interview Questions
The questions to prepare for a dunnhumby Software Engineer interview. Questions from real interview reports rank first. Updated weekly.
Problem Given the root of a binary tree, return True if it is a valid Binary Search Tree (BST), otherwise return False. A valid BST requires that every n...
dunnhumbyFind the single missing value between sorted arrays using binary search in O(log n) time and O(1) space.
dunnhumbyEvaluates your understanding of cloud tooling and deployment workflows.
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Assesses system design thinking and your ability to communicate architecture decisions.
dunnhumbyEvaluates your problem-solving strategy for data-intensive tasks.
dunnhumbyAssesses your approach to applied problem solving and correctness under time constraints.
dunnhumbyEvaluates your ability to query and manipulate data for analytics outcomes.
dunnhumbyEvaluates your ability to apply customer and retail reasoning to a constrained business problem.
dunnhumbyCalculate month-over-month sales growth for each product category using JOINs and window functions.
Wayfair
Fanatics
REVOLVECalculate average weekly active SMBs per month from a single events table using filtering, grouping, and date functions.
Commonwealth Bank of Australia
Chime
HanesbrandsAggregate completed Shopify sales and admin logins by merchant and month using CTEs, LEFT JOIN, and conditional logic.
Shopify