Give me an example of a time when you were able to deliver an important project under a tight deadline.

In my last internship, I was asked to help finish a reporting feature that needed to go out before a customer demo the following week. I owned the data validation part, and after the first day I realized my original approach was too slow and would likely miss the date. I told my mentor right away, showed two simpler options, and we agreed to focus on the checks that affected what the customer would actually see in the demo. I finished that narrower version in time, asked another engineer for a quick review on the risky parts, and helped test the full flow before the demo. We delivered on schedule, and afterward I documented the parts we deferred so they could be added in the next sprint.

At a small health-tech startup where I was a junior developer, we had one week to get a patient intake form update live for a pilot partner hospital. I was responsible for converting incoming records to the new format and making sure nothing broke for existing patients. Realizing a manual approach would be error-prone and slow, I spent a day writing a small migration tool and added a couple of automated checks so we could validate records quickly. I coordinated with our product manager to schedule a low-traffic deployment window and put the new code behind a feature flag so we could roll back instantly if needed. We deployed the update on time, the hospital ran their first intake that afternoon without issues, and I stayed on-call for that evening to address one small edge case that came up. The partner was pleased and we kept the migration tool for future updates.