Top 29
Prep plan
Updated weekly · Last refresh Aug 30

IDT Software Engineer Interview Questions

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

29questions
~5htotal time
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1
CodingStart here. 11 questions · ~111 min
Balanced Brackets CheckEasy
Practice

Use a stack to determine whether an IDT message string contains properly nested and matched brackets.

RecursionStackStringsIDT
Search in Rotated Sorted ArrayEasy
Practice

Find a target in a rotated sorted array using modified binary search in O(log n) time.

RecursionArraysSearchingIDT
Iterative and Recursive FibonacciEasy
Practice

Compute the nth Fibonacci number with selectable iterative and recursive implementations, then compare their performance.

RecursionIDT
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2
Execution3 questions · ~30 min
Disagreeing on Safety-Critical TradeoffsEasy

Describe how you handled a disagreement with an engineer or safety expert when the decision involved delivery pressure and safety tradeoffs.

Trade-offsRisk AssessmentScope ManagementIDT
Impact of a Challenging ProjectMedium

Tests ability to communicate technical decisions and quantify impact from complex work.

Trade-offsSuccess CriteriaRoadmappingIDT
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3
Security & Infrastructure3 questions · ~30 min
Writing More Secure CodeMedium

Assesses secure coding practices and threat-aware development habits.

best practicesIDT
REST VerbsEasy

Evaluates baseline knowledge of RESTful API conventions.

restIDT
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4
Behavioral & Leadership11 questions · ~111 min
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5
More topics1 question · ~10 min
Cross Join and Recursive FunctionsMedium

Evaluates SQL and programming fundamentals for everyday engineering tasks.

functionssqlIDT
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 29 questions plus 3 hands-on drills to finish this plan.