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Updated weekly · Last refresh Aug 30

1Password Software Engineer Interview Questions

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

50questions
~7htotal time
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1
CodingStart here. 10 questions · ~88 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
Balance Debt and Feature DeliveryMedium

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

Trade-offsScope ManagementPrioritization1Password
Recover a Slipping ProjectMedium
Recently asked

Explain how you would diagnose and recover a project that is falling behind schedule without losing stakeholder trust.

Success CriteriaRoadmappingRisk Assessment1Password
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3
System Design3 questions · ~26 min
Events API for 1Password AccountHard

Assesses system design for event ingestion and retrieval in 1Password's account domain.

api design1Password
System Diagram and TradeoffsHard

Evaluates end-to-end system thinking and communication of technical tradeoffs.

technical discussion1Password
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4
Security & Infrastructure3 questions · ~26 min
Password Manager PurposeEasy

Tests understanding of the security value of password managers.

Security1Password
Need for Password ManagersEasy

Assesses knowledge of the problems password managers solve for users and businesses.

Security1Password
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5
Behavioral & Leadership24 questions · ~210 min
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