Top 20
Prep plan
Updated weekly · Last refresh Oct 17

CertiK Security Engineer Interview Questions

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

20questions
~3htotal time
Track your progressSign up free to work through all 20 questions and resume where you left off.
Start practicing free →
1
Security & InfrastructureStart here. 5 questions · ~40 min
Motivation for Smart Contract ResearchHard

Assesses motivation and how research translates into real-world security outcomes at CertiK.

researchCertiK
Solidity Vulnerability WalkthroughHard

Evaluates depth of smart contract security reasoning and practical remediation steps.

vulnerabilitiesCertiK
Secure Coding PrinciplesEasy

Tests secure coding fundamentals and ability to apply them to production systems.

Stakeholder ManagementCommunicationOwnershipCertiK
More Security & Infrastructure questions with a free account
2
Coding7 questions · ~56 min
Detect Reentrancy in Smart ContractsHard

Tests ability to reason about reentrancy patterns and implement vulnerability detection logic.

RecursionHash TablesGraphsCertiK
Blockchain Data Structure EfficiencyMedium

Tests algorithmic thinking and ability to optimize data structures for blockchain constraints.

Hash TablesTreesGraphsCertiK
Analyze a Flagged Smart ContractMedium

Tests structured vulnerability triage, investigation workflow, and evidence-based conclusions.

RecursionHash TablesGraphsCertiK
More Coding questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
3
Behavioral & Leadership7 questions · ~56 min
Prioritizing Security During Product DevelopmentMedium

Tests prioritization of security work during product development, including risk-based decision-making and stakeholder alignment under delivery pressure.

Stakeholder ManagementOwnershipPrioritizationCertiK
More Behavioral & Leadership questions with a free account
4
More topics1 question · ~8 min
Diagnose and Fix Ongoing BreachesHard

Tests deep incident analysis, root-cause discovery, and long-term hardening strategy.

Stakeholder ManagementOwnershipPrioritizationCertiK
The finish line: interview-readyComplete all 20 questions to finish this plan.