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Updated weekly · Last refresh Oct 17

FICO Software Engineer Interview Questions

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

50questions
~8htotal time
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1
CodingStart here. 10 questions · ~95 min
Implement Binary Search AlgorithmEasy
Practice

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

SearchingFICO
Linked List ReversalEasy
Practice

Reverse a singly linked list in-place using iterative pointer manipulation.

RecursionLinked ListsArraysFICO
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2
System Design9 questions · ~85 min
AdaBoost FundamentalsMedium

Assesses understanding of core machine learning concepts.

Machine LearningFICO
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3
Technical Fundamentals5 questions · ~47 min
OOP and DSA BasicsMedium

Assesses OOP fundamentals and baseline DSA competence for FICO engineering work.

behavioral questionsoopFICO
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4
Execution7 questions · ~66 min
Filtering: DB vs Business LogicMedium

Assesses performance and architecture trade-offs in data-heavy features.

filteringdatabase designFICO
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5
Security & Infrastructure10 questions · ~95 min
Security Groups vs NACLsMedium

Assesses practical cloud/network security fundamentals and rule behavior.

NetworkingFICO
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6
SQL & Data Manipulation5 questions + 3 drills · ~77 min
7
More topics4 questions · ~38 min
Process Distributed Logs Without LocksHard

Evaluates your concurrency strategy and distributed processing design under constraints.

distributed systemsFICO
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The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.