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Updated weekly · Last refresh Aug 30

Heartflow Software Engineer Interview Questions

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

26questions
~4htotal time
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1
CodingStart here. 16 questions · ~151 min
Reverse a Linked List in PythonEasy
Practice

Reverse a singly linked list in place using an iterative pointer update or recursion.

RecursionLinked ListspointersHeartflow
Find Substring IndicesMedium
Practice

Find the first occurrence of a substring using KMP and return its inclusive start and end indices.

string manipulationAlgorithmsHeartflow
Data Structure Trade-offsMedium

Tests ability to choose appropriate data structures based on workload and performance goals.

Hash TablesLinked ListsTreesHeartflow
Testing a Python ComponentMedium

Tests ability to design tests, validate correctness, and ensure reliability for production systems.

Hash TablesSearchingSortingHeartflow
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2
Behavioral & Leadership7 questions · ~66 min
Prioritizing Conflicting High-Stakes WorkEasy

Tests prioritization under pressure, stakeholder management, and ownership when multiple urgent requests compete for limited time.

Stakeholder ManagementOwnershipDealing With AmbiguityHeartflow
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3
More topics3 questions · ~28 min
Handling Unexpected Performance IssuesMedium

Tests incident response skills including diagnosis, measurement, and mitigation.

Trade-offsSuccess CriteriaRisk AssessmentHeartflow
Handling Unexpected Performance IssuesMedium

Tests your ability to diagnose and resolve performance regressions under real constraints.

memory managementHeartflow
Fixing Data Inconsistency in Medical ImagingHard

Tests debugging and data integrity strategies for medical imaging workflows like those in Heartflow.

Rollback PlanRisk AssessmentScope ManagementHeartflow

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