Technical Interview Questions

System design

Walk through: requirements, constraints, scale estimate, high-level design, bottlenecks, and trade-offs. Mention technologies you've used.

Describe your process: reproduce, isolate, instrument, hypothesize, verify. Emphasize how you avoid breaking production.

Show you can read code critically: clarity, edge cases, tests, and consistency with the codebase.

Structure: goal, constraints, approach, trade-offs, outcome. Mention specifics — technologies, numbers, deadlines.