Mid leveltech

DevOps Engineer
Interview Questions

Covering DevOps Engineer interview questions — CI/CD, Docker, Kubernetes, and cloud infrastructure prep.. Free, no signup required.

10 questions ready

Technical Questions
Q1
Walk us through how you would design a CI/CD pipeline for a microservices application, including source control integration, automated testing stages, and deployment strategies. What tools would you choose and why?
Why they ask this:* This tests your ability to architect end-to-end deployment solutions, understand the full DevOps workflow, and justify tool selections based on real-world constraints.
Q2
Explain the difference between Docker and Kubernetes, and describe a scenario where you would use one over the other or both together. What are the networking and storage challenges you'd consider?
Why they ask this:* This assesses your depth of knowledge in containerization and orchestration—core DevOps technologies—and your ability to make pragmatic technology decisions.
Q3
How would you approach monitoring and alerting for a production application running on Kubernetes? What metrics matter most, and which tools would you use to collect and visualize them?
Why they ask this:* This evaluates your understanding of observability, incident response, and proactive system health management, which are critical for on-call DevOps engineers.
Q4
Describe your experience with Infrastructure as Code (IaC). Which tool have you used (Terraform, CloudFormation, Ansible), and how did you handle state management, versioning, and drift detection?
Behavioral Questions
Q5
Tell us about a time when a production deployment failed or caused an outage. What was the situation, what immediate actions did you take, and what did you implement afterward to prevent it from happening again?
Q6
Describe a situation where you had to collaborate with a development team to resolve a recurring performance issue. How did you approach the problem, what data did you gather, and how did you communicate findings to a non-technical stakeholder?
Q7
Tell us about a time when you automated a manual, repetitive task that was previously handled by your team. What was your approach, how long did it take, and what was the measurable impact?
Situational Questions
Q8
How would you handle a situation where a critical production service is degrading, but you're unsure whether the issue is in your infrastructure, the application code, or a third-party dependency?
Q9
What would you do if you discovered that your IaC templates have drifted significantly from the actual infrastructure state in production, and the team has no recent documentation of the changes?
Q10
How would you handle a request from a development team to grant broader AWS permissions to their service account when you believe it violates your organization's security policy?
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