Top 50
Prep plan
Updated weekly · Last refresh Oct 17

1Password Software Engineer Interview Questions

The questions to prepare for a 1Password Software Engineer interview. Questions from real interview reports rank first. Updated daily.

50questions
~7htotal time
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1
CodingStart here. 9 questions · ~79 min
Reverse a Linked ListEasy
Practice

Reverse a singly linked list in place using pointer manipulation.

RecursionLinked Lists1Password
Two Sum with TargetEasy
Practice

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysStrings1Password
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2
Execution10 questions · ~88 min
Secure a CI/CD PipelineMedium

Explain how you would secure a CI/CD pipeline against common vulnerabilities while preserving delivery speed and safe rollback.

vulnerabilitiesCI/CDSecurity1Password
Balance Debt and Feature DeliveryMedium

Explain how you prioritize technical debt versus feature work while aligning stakeholders and protecting delivery speed.

Trade-offsScope ManagementPrioritization1Password
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3
System Design10 questions · ~88 min
Design an API With Two EndpointsHard

Evaluates API design skills and ability to define endpoints and contracts.

api design1Password
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4
Security & Infrastructure4 questions · ~35 min
Password Manager PurposeEasy

Tests understanding of the security value of password managers.

Security1Password
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5
Software Architecture3 questions · ~26 min
End-to-End Testing on Take-HomeMedium

Evaluates testing strategy and quality practices for end-to-end flows.

TestingManagement1Password
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6
Behavioral & Leadership13 questions · ~114 min
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7
More topics1 question · ~9 min
Code Performance OptimizationMedium

Tests your approach to profiling, algorithm choice, and performance measurement.

OwnershipPrioritization1Password
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