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Updated weekly · Last refresh Oct 17

Dexian Signature Consultants Software Engineer Interview Questions

The questions to prepare for a Dexian Signature Consultants Software Engineer interview. Questions from real interview reports rank first. Updated daily.

29questions
~5htotal time
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1
CodingStart here. 8 questions · ~76 min
Longest Substring Without RepeatsMedium
Practice

Find the longest substring with all unique characters using a sliding window.

Hash TablesStringsTwo PointersDexian Signature Consultants
Linked List ReversalEasy
Practice

Reverse a singly linked list in-place using iterative pointer manipulation.

RecursionLinked ListsArraysDexian Signature Consultants
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2
System Design4 questions · ~38 min
Design a URL Shortening RecommenderHard

Design a URL shortener that ranks and recommends short links while handling abuse, freshness, and monitoring at scale.

Feature StoreModel ServingDexian Signature Consultants
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3
Behavioral & Leadership12 questions · ~113 min
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4
More topics5 questions · ~47 min
Core Java ConceptsMedium

Evaluates your foundational Java knowledge and ability to explain key concepts.

javaDexian Signature Consultants
SQL vs NoSQL Trade-OffsMedium

Tests data modeling judgment and understanding of consistency and scalability.

InfrastructureTrade-offsData ModelingDexian Signature Consultants
Active Networking CertificationsMedium

Assesses your current networking credentials relevant to infrastructure and security expectations.

NetworkingDexian Signature Consultants
Real-Time Data System ArchitectureHard

Tests system design skills for low-latency pipelines and scalable real-time processing.

InfrastructureStream ProcessingOrchestrationDexian Signature Consultants
Optimize Slow QueryHard

Tests query optimization skills and performance troubleshooting for data systems.

SubqueriesJoinsAggregationsDexian Signature Consultants
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL Join and Monthly SummaryMedium
Practice
Practice drill

Join analyst activity and target data to produce monthly counts, values, averages, and attainment percentages.

Date FunctionsJoinsGroup ByEdwards LifesciencesDexian Signature Consultants
Discrepancy Query Between SourcesHard
Practice
Practice drill

Identify missing, duplicated, and mismatched records between two source tables using full reconciliation logic.

SubqueriesJoinsData WranglingDexian Signature Consultants
Find Duplicates in SQLEasy
Practice
Practice drill

Use GROUP BY and HAVING to find duplicate policy records in Ryan Specialty data.

Group ByHavingAggregationsGramenerCarGurusFresh Gravity
The finish line: interview-readyComplete all 29 questions plus 3 hands-on drills to finish this plan.