Ong & Shan Software Engineer Interview Questions

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

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CodingStart here. 10 questions · ~96 min

Implement Bubble Sort AlgorithmEasy

Practice

Write a function to perform bubble sort on an array.

Sorting

Ong & Shan

First Non-Repeating CharacterEasy

Practice

Find the first non-repeating character in a string using frequency counting and a second pass in O(n) time.

Hash TablesStringsSearching

Ong & Shan

Implement Binary SearchEasy

Tests algorithm implementation skills and correctness reasoning.

RecursionArraysSearching

Ong & Shan

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Execution3 questions · ~29 min

Prioritizing Features and WorkMedium

Tests prioritization judgment across UX, engineering constraints, and business outcomes.

Trade-offsRoadmappingPrioritization

Ong & Shan

Debugging Production IssuesHard

Tests structured troubleshooting, observability thinking, and risk-aware debugging under pressure.

Trade-offsSuccess CriteriaRisk Assessment

Ong & Shan

System Design ApproachMedium

Tests ability to translate requirements into a system design with clear tradeoffs.

Trade-offsRoadmappingScope Management

Ong & Shan

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Behavioral & Leadership11 questions · ~106 min

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More topics2 questions · ~19 min

Security and ScalabilityMedium

Tests ability to apply security and scalability principles to real production systems.

InfrastructureDependenciesQuality

Ong & Shan

Web App Architecture ComponentsMedium

Tests practical system design knowledge for building maintainable web applications.

Feature StoreRetrievalModel Serving

Ong & Shan

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