A practice prompt we wrote. No company or candidate report names it, so it carries no company tag.
How to answer
AWS says its model is designed so customers are self-sufficient when a deployment ends. Source 1AWS invests $1 billion to embed AI forward deployed engineers with customersPublisherAbout AmazonSource typecompany blog Your answer should show that you planned for that from early on and can prove it happened.
- What you built and who took it over. The system in one sentence, then the named team and person who would own it, and whether their manager gave that person time for it; an owner with no hours set aside is not an owner. Define “run”: deploy it, watch it, respond when it breaks, and change it, such as adding a data source.
- When handover started, and what you built differently because of it. Start early and let it change the design: their language and stack instead of yours, their CI and alerting instead of a dashboard only you watch, one moving part removed because nobody on their side could own it.
- How the knowledge moved. Pairing, then reversed roles: their engineer drives, you watch. A runbook they wrote and tested. A rehearsed failure, such as a rollback or a bad input file, handled by their on-call while you stayed quiet.
- The proof. Something they did alone after you left, with when: an incident resolved, a change shipped, a new user group onboarded. Silence is not proof; they may just not have needed you yet.
- What came back: the one question they still asked, and what you would change because of it.
Say the test you set out loud: “Handover was done when their on-call could roll back a bad release without calling me, and we proved it with a rehearsal.”
The trap is the last-week handover: a document, a recorded walkthrough and a goodbye. The other is the proud ending where they still call you. Both tell the interviewer the system still depends on you.
Follow-ups
What the interviewer may ask next, once your first answer is on the table.
- What was the first thing that broke after you left, and who fixed it?
- What would have happened if their named owner had left a month after you did?
- How did you know their team was ready, rather than hoping it was?
Where answers go wrong
- Describes handover as a document and a recorded walkthrough in the final week, with no evidence the customer’s team ever ran the system alone.
- Offers “they still call me when something breaks” as a sign of a good relationship, when it is evidence the handover did not happen.
Answer this in two minutes
Write the answer you would say out loud. The clock starts with your first word.
Illustrative answer about a fictional project
I built a daily ordering forecast for a regional grocery chain. Every night it predicted how much fresh produce each of their 62 stores would sell over the next three days, and store managers placed orders from it.