DeltaX Software Engineer Interview Questions
The questions to prepare for a DeltaX Software Engineer interview. Questions from real interview reports rank first. Updated weekly.
Reverse a singly linked list iteratively and recursively in Python.
Tests ability to reason about low-level behavior and control flow correctness.
Explain the four ACID properties and why they matter for reliable transaction processing in SQL systems.
Explain normalization, why it improves data integrity, and when denormalization is a practical performance tradeoff.
Use LEFT JOINs, a CTE, and aggregation to summarize 2025 claims and completed payments for active Guidewire PolicyCenter policies.
Find Airtel subscribers with the third-highest January data usage using joins, aggregation, a CTE, and DENSE_RANK.
airtelUse recursive CTEs and anti-join logic to find active VLink employees without a current department.
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Tests understanding of OS memory management and concurrency-related memory issues.
Tests knowledge of concurrency primitives and practical decision-making.
Assesses ability to translate requirements into a workable Java application design.
Assesses understanding of TCP transmission behavior and networking fundamentals.