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Prep plan
Updated weekly · Last refresh Oct 17

TomTom Software Engineer Interview Questions

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

50questions
~8htotal time
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1
CodingStart here. 20 questions · ~189 min
First Occurrence of SubstringHard
Practice

Find the first occurrence of a navigation substring using KMP pattern matching in linear time.

AlgorithmsTomTom
Move Positives Left Negatives RightEasy
Practice

Partition an integer array in-place so positive values precede negative values using two pointers.

ArraysSortingData StructuresTomTom
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2
Security & Infrastructure5 questions · ~47 min
Coding: Secure Payment SystemHard

Evaluates security design thinking for payments, threats, and mitigations.

web securityTomTom
Coding: Errors and Memory/ConcurrencyHard

Assesses low-level debugging skills and understanding of concurrency and memory.

memory managementconcurrencyTomTom
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3
Execution3 questions · ~28 min
Investigating OOM in ProductionHard

Assesses your debugging approach for production memory failures and root-cause analysis.

production issuesTomTom
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4
System Design14 questions · ~132 min
Recommendation Systems DesignHard

Evaluates system design thinking for building scalable recommendation services.

Machine LearningRecommendation SystemsTomTom
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5
Behavioral & Leadership6 questions · ~57 min
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6
More topics2 questions · ~19 min
Maps Data EDA ProjectMedium

Assesses your data exploration approach and ability to derive insights from location datasets.

TomTom
SQL Query SkillsMedium

Assesses your ability to query and manipulate data using SQL.

sqlTomTom
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.