BlackRock Software Engineer Interview Questions
The questions to prepare for a BlackRock Software Engineer interview. Questions from real interview reports rank first. Updated weekly.
Reverse a singly linked list in-place using iterative pointer manipulation.
BlackRockTraverse a graph from a start node using BFS and DFS, returning the visit order for each traversal.
BlackRockFind the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.
BlackRockExplain how SQL and NoSQL differ in schema, consistency, scaling, and Demandbase-style analytics use cases.
BlackRockCalculate 30-day rolling average returns for in-scope assets using LAG, CTEs, and date-based window frames.
BlackRockUse ROW_NUMBER() to keep the earliest created_at 'Repl created' per entity and return out-of-order duplicates to delete.
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Design a production ranking system with robust feature drift monitoring across batch and real-time features at high QPS.
BlackRockExplain how you would decide between a monolith and microservices for a new engineering initiative.
BlackRockApproach for maintaining data quality and integrity across ETL pipelines.
BlackRockEvaluates your breadth of backend engineering knowledge across performance, architecture, and delivery.
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