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Interactive Brokers Interview Questions

The questions to prepare for Interactive Brokers interviews, across all roles. Questions from real interview reports rank first. Updated weekly.

50questions
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1
CodingStart here. 6 questions · ~60 min
Detect Cycle in Linked ListEasy
Practice

Use Floyd’s two-pointer algorithm to determine whether a singly linked list contains a cycle.

Hash TablesLinked ListsTwo PointersInteractive Brokers
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2
SQL & Data Manipulation5 questions + 2 drills · ~70 min
Second Highest Value QueryEasy
Practice

Use a CTE and DENSE_RANK to find all candidates tied at the second-highest SQL assessment mark.

aggregationsqlInteractive Brokers
Top Users by Recent Transaction VolumeMedium
Practice
Practice drill

Find the top 3 users by completed transaction volume in the last 30 days using joins and aggregation.

Data Analysisquery optimizationsqlTTier 1 BankRevolutChime
SQL: Customers With Multiple OrdersEasy
Practice
Practice drill

Use a join, month-level grouping, and HAVING to find VistaPrint customers with multiple orders in the same month.

aggregationJoinssqlCCimpress Technology
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3
Execution6 questions · ~60 min
Prioritize Competing Team ProjectsMedium

Decide how to prioritize competing engineering projects when stakeholders, dependencies, and capacity all conflict.

Trade-offsRoadmappingPrioritizationInteractive Brokers
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4
Sales & Customer6 questions · ~60 min
Stay Current on Market TrendsEasy

Show how you keep up with financial services trends and turn that into sharper customer conversations.

Stakeholder ManagementCommunicationOwnershipInteractive Brokers
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5
System Design5 questions · ~50 min
Many-to-Many Database SchemaMedium

Tests data modeling skills and ability to design join tables with appropriate keys and constraints.

database designInteractive Brokers
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6
Metrics5 questions · ~50 min
Success Metrics for ProjectsMedium

Tests your ability to define measurable outcomes aligned to delivery and business impact.

performance measurementInteractive Brokers
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7
More topics17 questions · ~170 min
Long-Term GoalsEasy

Tests motivation, career direction, and fit for growth in a luxury retail environment.

Go-to-MarketGrowth StrategyInteractive Brokers
Accuracy With High-Frequency DatasetsMedium

Tests data quality practices for high-volume, time-sensitive market and trade data.

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