Interview Questions to Ask a DevOps Engineer Candidate
Questions that surface real evidence of reliable, automated infrastructure that measurably reduces downtime and deployment friction — plus what to actually listen for in the answer, not just whether they say the right buzzwords.
1. Describe how you would design a deployment pipeline that lets a team release several times a day safely.
What to listen for: Look for automated tests, staged rollouts, quick rollback, infrastructure as code, and clear visibility into what is running where.
2. At 2am an alert shows error rates climbing after a release. What do you do before you find the root cause?
What to listen for: The candidate stabilises first by rolling back or reducing impact, communicates status, gathers evidence, and writes up the cause afterward without blame.
3. A developer asks for broad admin access to production to move faster. How do you handle it?
What to listen for: Expect least privilege, temporary or audited access, an understanding of the underlying need, and a safer route that still unblocks the developer.
4. You can only automate one of three manual tasks this month. How do you pick which one?
What to listen for: A good answer compares frequency, error risk, and time saved, and checks with the people who do the work before deciding.
5. What would you do in your first 30 days in this devops engineer role?
What to listen for: Whether their plan is grounded in the role's actual must-haves (ci/cd pipeline design and infrastructure as code (terraform/cloudformation)) or generic ("get to know the team"). Specificity here signals real understanding of the job, not just interview prep.
6. Why are you leaving your current role, and why this one specifically?
What to listen for: Forward-looking motivation tied to something concrete about this role, versus badmouthing a past employer or vague dissatisfaction. Watch for whether their reasons actually match what this role offers.
A warning sign in this interview
Makes changes directly on production servers without a record, treats monitoring as someone else's job, or cannot describe how they would undo a bad release.
What to look for on the CV before the interview
Pipelines and infrastructure owned, incidents handled and automation written.
Confirm before you make an offer
Cloud certifications can help but should not replace evidence of running systems.
People who may apply under another title
This job is also called Site Reliability Engineer, Platform Engineer, Infrastructure Engineer, Release Engineer. A candidate with one of those titles can be a strong match, so ask the same questions and judge the answers, not the title.
Frequently asked questions
How many of these questions should I ask in one interview?
3-4 is realistic for a 30-45 minute interview once you leave room for follow-ups and the candidate's own questions. Divide competencies across panel members rather than every interviewer asking all of them — see the Interview Scorecard tool for a structured version of this.
How is this different from the Interview Scorecard tool?
This page is a generic starting point for the devops engineer role. The tool generates a full panel-ready kit — competency-grouped questions, a 1-5 rating rubric, and strong/weak answer examples — tailored to your actual job description and competencies.
What is a red flag when interviewing a devops engineer?
Makes changes directly on production servers without a record, treats monitoring as someone else's job, or cannot describe how they would undo a bad release.
What should I confirm before offering a devops engineer the job?
Cloud certifications can help but should not replace evidence of running systems.
Hiring a devops engineer? The rest of the toolkit
- How to write the job description →
Titles, must-haves, credentials and a starting posting.
- Search strings to find candidates →
Five searches from broad to narrow, with exclusions.
- Run the whole hire in one place →
Jobs, CV review, interviews, offers and checks together.