DevOps / Platform Engineer
Tell me about an outage or broken deploy you were involved in. What did you do in the moment, and what did you change afterwards?
What the interviewer is looking for
- This question tests ownership. Takes responsibility for outcomes, follows incidents through to lasting fixes, and owns mistakes without blaming others.
- What to bring out: Owned their part honestly, restored service first, communicated status, and drove lasting fixes rather than a one-off patch.
- Expect a follow-up like: How did you make sure the follow-up actions actually got done?
Another way it may be asked: Think of a time something you touched broke production. Walk me through how you handled it then and after.
A structure to follow: STAR, with the weight on Action and Result
- Step 1
Situation
One or two sentences: where, when and what was at stake. Pick a real example you were close to.
- Step 2
Task
What you personally were responsible for. Say "I", not only "we", so the ownership you showed is visible.
- Step 3
Action
The two or three things you did and why you chose them over the alternatives. This should be about half your answer.
- Step 4
Result
What changed, in your own measure of it, and what you would do differently. Only use numbers you can stand behind.
This is guidance on shape, not a script. Use your own real experience and facts; never invent details to fill a gap. See the STAR guide and answer frameworks.
Common slips
- Describing what the team did without saying what you did.
- Choosing an example with no clear outcome, or one you cannot answer detailed questions about.
- Ending on the action and skipping the result and what you learned.
How to practise it
Write two bullet points for each STAR letter, then say the answer aloud in about two minutes.
Related questions
- Walk me through what happens, step by step, between a developer pushing code and that code running in production, on a pipeline you would set up.
- Why would a team define its infrastructure in code instead of clicking through a cloud console, and what problems does that solve?
- In plain terms, what is a container, and how is it different from running an app directly on a virtual machine?
- A pod in Kubernetes keeps restarting in a crash loop right after a deploy. How do you work out what is wrong?
- Tell me about a time you set up monitoring or alerting that caught a problem before users noticed. What did you measure?