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Updated weekly · Last refresh Aug 30

HCLTech Software Engineer Interview Questions

The questions to prepare for a HCLTech Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

50questions
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1
CodingStart here. 10 questions · ~113 min
Linked List ReversalEasy
Practice

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

RecursionLinked ListsArraysHCLTech
Two Sum with TargetEasy
Practice

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysStringsHCLTech
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2
SQL & Data Manipulation9 questions + 1 drill · ~112 min
Second Highest Trader SalaryEasy
Practice

Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.

SubqueriesRankingSortingHCLTech
SQL Second Highest SalaryEasy
Practice

Find the second distinct highest salary in S&P Global employee data without using window functions.

sql querydatabasesalaryHCLTech
Second Highest Without AggregatesHard
Practice
Practice drill

Find the second highest salary in each department without using aggregate functions.

SubqueriesRankingSelf-JoinsCredit GenieDevoteamCisco Restaurant + Bar
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3
Execution9 questions · ~102 min
Handle Conflict Within Your TeamEasy

Explain how you handle team conflict while keeping delivery on track and maintaining trust across stakeholders.

Trade-offsRisk AssessmentScope ManagementHCLTech
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4
System Design9 questions · ~102 min
Event-Driven Architecture DesignHard

Tests your ability to design event-driven systems and reason about involved components.

system designHCLTech
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5
Security & Infrastructure9 questions · ~102 min
Networking Switching and FirewallsMedium

Tests your baseline knowledge of network concepts relevant to production systems.

NetworkingHCLTech
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6
More topics4 questions · ~45 min
Data Migration TechniquesMedium

Assesses your approach to planning and executing data migrations safely.

data migrationmethodologyHCLTech
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The finish line: interview-readyComplete all 50 questions plus 1 hands-on drill to finish this plan.