Tell me about a project you're proud of

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Lesson 10: Tell me about a project you're proud of

1. Can you tell me about a project you're proud of?
I led the migration of our monolithic backend into smaller services.
It took about six months and involved three other engineers.
The project reduced our deployment time from an hour to under ten minutes.

2. What was your specific role in that project?
I was responsible for the overall technical plan and splitting the work between the team.
I also handled the trickiest part, which was migrating the payment logic safely.
Along the way, I made sure we didn't have any downtime for users.

3. What was the biggest challenge during the project?
The biggest challenge was migrating data without losing anything or causing duplicates.
We had to run both the old and new systems in parallel for a few weeks.
It required a lot of careful testing before we could fully switch over.

4. How did you measure the success of the project?
We tracked deployment time, error rates, and how often engineers needed to roll back releases.
All three numbers improved significantly after the migration.
The team also reported feeling more confident about releasing changes.

5. What would you do differently if you did it again?
I would probably involve the frontend team earlier in the planning process.
We ran into a few surprises because some API changes weren't communicated early enough.
Better upfront communication would have saved us some rework.

Giọng A

Giọng B (hội thoại)

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