Code Ninjas Interview Questions
The questions to prepare for Code Ninjas interviews, across all roles. Questions from real interview reports rank first. Updated daily.
Assesses foundational knowledge of Spring and Hibernate and their roles.
Evaluates frontend architecture and state management strategies.
Assesses understanding of algorithmic efficiency and tradeoffs.
Tests conflict resolution in a live project setting, including communication, stakeholder alignment, and ownership of the outcome.
Explain how you evaluated a marketing campaign using funnel, efficiency, and business outcome metrics.
Explain INNER, LEFT, RIGHT, FULL OUTER, CROSS, and SELF JOINs with examples and when to use each.
Tests secure coding awareness and practical mitigations for web applications.
Assesses metrics mindset and evaluation approaches for events.
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Compute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.
Gain Digital
TCS
Zest AIRank the top 3 completed rides per vehicle per day using joins, a CTE, and ROW_NUMBER.
Waymo
CruiseUse joins and LAG to isolate departments driving a large month-over-month spending variance.
State of California
University of Chicago
The Church of Jesus Christ of Latter-day Saints