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Instacart Hard Interview Questions

2 hard-level practice questions for Instacart technical interviews

Instacart software engineer interviews cover algorithms, data structures, system design, and coding problems drawn from real interview rounds.

Software Engineer Backend Engineer Frontend Engineer Full Stack Engineer Mobile Engineer Data Engineer Data Scientist ML Engineer DevOps Engineer DevOps Engineer Product Manager SRE Security Engineer Engineering Manager Data Analyst UX/UI Designer QA Engineer
coding Hard Verified Question #1

1. Minimum Workers For Average Task Time


Category: Algorithm coding problem
A manufacturing plant has workers processing jobs. Each job has a processingTime and an arrivalTime. Workers process one job at a time. When a...
Input: List
Output: Integer
coding Hard Verified Question #2

2. Analytics Pivot Query


Category: Graph coding problem
An e-commerce analytics platform stores transaction records in a data warehouse. Each record contains at least the columns transaction_id, cost,...
Input: Graph (nodes and edges)
Output: Computed result

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