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Updated weekly · Last refresh Aug 30

Air Apps Software Engineer Interview Questions

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

30questions
~5htotal time
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1
CodingStart here. 18 questions · ~170 min
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 TablesStringsSearchingAir Apps
Implement Binary Search AlgorithmEasy
Practice

Write a binary search function to find a target value in a sorted array.

SearchingAir Apps
Object-Oriented vs Functional ProgrammingEasy

Compare object-oriented and functional programming in terms of state, abstraction, side effects, and design tradeoffs.

LanguagestechnicalProgrammingAir Apps
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2
Execution3 questions · ~28 min
Recover a Slipping Engineering ProjectMedium

Assess and recover an engineering project that is behind schedule while managing scope, risk, and stakeholder expectations.

RoadmappingRisk AssessmentScope ManagementAir Apps
Design a New FeatureMedium

Tests feature design thinking, tradeoffs, and alignment with Air Apps product needs.

Trade-offsRoadmappingScope ManagementAir Apps
Ensure Code QualityMedium

Tests engineering practices for maintainability, testing, and quality in Air Apps-scale codebases.

Success CriteriaRisk AssessmentScope ManagementAir Apps

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3
Behavioral & Leadership7 questions · ~66 min
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4
More topics2 questions · ~19 min
Optimize Slow SQL QueriesHard

Tests SQL performance tuning and query optimization skills for Air Apps applications.

SubqueriesJoinsAggregationsAir Apps
SQL Interview Question TypesEasy

Tests familiarity with common SQL question patterns relevant to Air Apps’ backend work.

JoinsAggregationsAir Apps
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Top Customers by Net SalesMedium
Practice
Practice drill

Compute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.

SubqueriesJoinsData WranglingGain DigitalTCSZest AI
Unify CRM and Google Analytics ViewHard
Practice
Practice drill

Merge CRM orders with GA events via an identity map to build a customer-level view using joins, window functions, and monthly rollups.

SubqueriesJoinsData WranglingArtefact
Analyze Delivery Performance with SubqueriesMedium
Practice
Practice drill

Use subqueries to compare each courier's delivery speed and on-time rate against the network average.

SubqueriesJoinsAggregationsInstacart
The finish line: interview-readyComplete all 30 questions plus 3 hands-on drills to finish this plan.