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DevOps Engineer interview questionsProblem-solving Test round
A 60 min interview plan with a time-boxed script, what each question is for, and the signals to score against. Key skills: Problem Solving, System Analysis, Troubleshooting, Performance Optimization, Incident Response.
Opening
· 5 minWho is interviewing, how the round will run, and a question to settle the candidate in. The standard openingProblem-Solving Challenge
What this part is for
Purpose
Evaluate technical knowledge and problem-solving skills in real-world scenarios.
Scenario: You are responsible for a web application running on a cloud infrastructure. Users report that the application is slow during peak hours. How would you approach diagnosing and resolving this issue?
What this question is for, and what to listen for
Purpose
Assess problem-solving, system analysis, troubleshooting, and performance optimization skills.
Signals to score
- Identifies potential bottlenecks
- Considers both server and network issues
- Suggests monitoring tools
- Proposes scaling solutions
- Discusses load balancing
- Considers database optimization
- Open to feedback and adjusts accordingly
Follow-up questions
- What tools would you use to monitor the application performance?
- How would you determine if the issue is with the server or the network?
- What steps would you take to optimize database performance?
If you had more time, what would you change in your solution?
What this question is for, and what to listen for
Purpose
Assess the candidate's ability to reflect on their work, identify areas for improvement, and demonstrate critical thinking and problem-solving skills.
Signals to score
- Recognizes limits in their original answer.
- Points out clear areas to improve.
- Suggests specific changes.
- Talks about how changes could help performance.
- Shares ideas clearly and logically.
- Shows a desire to learn and improve.
Follow-up questions
- What additional tools or techniques could enhance your solution?
- How would you ensure the solution is scalable for future growth?
Great job on the problem-solving challenge!
What this line is for
Purpose
Provides positive reinforcement to the candidate, helping to build confidence and create a supportive atmosphere before moving into the final part of the interview.
Closing
· 5 minTheir questions for you, and what happens next. The standard closingDevOps Engineer interviews — common questions
- Who is this DevOps Engineer interview plan for?
- It is written for the interviewer, not the candidate: the hiring manager, engineer or panel member running the Problem-solving Test round for a DevOps Engineer role. It gives you a 60 min script to follow in the conversation — 2 questions with what each one is for and the signals to score against — so you are not writing the round from scratch the night before.
- What does the Problem-solving Test round assess?
- This round is focused on: Problem Solving, System Analysis, Troubleshooting, Performance Optimization, Incident Response. It works through Problem-Solving Challenge, scoring against 13 observable signals, with follow-up prompts on both questions for going deeper where an answer is thin.
- How is the 60 min split up?
- 5 min opening, 50 min on 2 questions and 5 min closing. The questions take in Problem-Solving Challenge (50 min). The timings are there so the round stays on schedule and every candidate gets the same shape of interview — which is what makes two candidates comparable afterwards.
- What other rounds should I run for a DevOps Engineer?
A single round does not cover a whole role. The other rounds in this library for a DevOps Engineer:
Hiring for this role?
Open this plan in Hirezen and make it a position in one click.
- Every interviewer runs the same script and marks the same signals.
- AI drafts the write-ups, and the debrief puts every read side by side.
- No ATS to set up first, and no bot in the call.
Free for your first open role.