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Updated weekly · Last refresh Oct 26

Interactive Brokers Software Engineer Interview Questions

The questions to prepare for a Interactive Brokers Software Engineer interview. Questions from real interview reports rank first. Updated daily.

50questions
~8htotal time
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1
SQL & Data ManipulationStart here. 5 questions + 2 drills · ~70 min
2
Coding20 questions · ~200 min
Number Sign ProgramEasy
Practice

Classify an integer from an Interactive Brokers TWS workflow as negative, zero, or positive using conditional logic.

Interactive Brokers
Array Sign ClassificationEasy
Practice

Determine whether the sign of all values in an Interactive Brokers price-change array is positive, zero, or negative in one pass.

Array ManipulationInteractive Brokers
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3
Technical Fundamentals4 questions · ~40 min
OOPS Remote Control ExampleMedium

Evaluates OOP understanding through a realistic class design scenario.

designoopInteractive Brokers
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4
System Design9 questions · ~90 min
Server Architecture and MultithreadingMedium

Assesses system-level thinking and concurrency design for server workloads.

multithreadingInteractive Brokers
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5
Execution4 questions · ~40 min
Measure 9 MinutesMedium

Tests logical reasoning and step-by-step planning for constrained time problems.

Problem SolvingInteractive Brokers
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6
Behavioral & Leadership6 questions · ~60 min
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7
More topics2 questions · ~20 min
Monitoring and Scheduling ToolsMedium

Assesses practical knowledge of operational monitoring and job scheduling concepts.

monitoringSchedulingInteractive Brokers
Network Protocol LayersMedium

Tests your understanding of networking fundamentals and protocol layering.

NetworkingprotocolsInteractive Brokers
The finish line: interview-readyComplete all 50 questions plus 2 hands-on drills to finish this plan.