Describe your proudest project and dive deep

Q: Describe your proudest project and dive deep

This is a Behavioral & Leadership interview question from Coupang for Software Engineer roles. View the full question and solution on PracHub.

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Question

Behavioral Prompt: Project You’re Most Proud Of

Context: Onsite software engineer behavioral interview. Choose one project and walk the interviewer through it, focusing on your impact and measurable outcomes.

Address the following in order:

Problem and Goal
- What problem were you solving and why did it matter? Who were the users or stakeholders? What success criteria or constraints (SLOs, deadlines) existed?
Your Role and Responsibilities
- What was your scope of ownership? What decisions did you make? What did you build or lead personally?
Key Technical Challenges
- Scale, latency, reliability, data correctness, system design, migrations, experimentation, etc.
Key Non-Technical Challenges
- Cross-team alignment, stakeholder management, prioritization, ambiguity, risk management.
Major Design or Prioritization Trade-offs
- Options you considered, why you chose one, and what you consciously de-prioritized.
How You Evaluated Success
- Metrics, impact, experiments, customer outcomes, incident reduction, cost/efficiency. Include before/after numbers where possible.
What You Would Do Differently
- Lessons learned, process/tech debt you’d address, and improvements you’d pursue if starting again.

Describe your proudest project and dive deep

Behavioral Prompt: Project You’re Most Proud Of

Solution (Locked)

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