System design
Interview-style design sessions: Gadfly reads the task aloud, you pull the requirements out of the interviewer, and you design the system on the board. At the end you commit to a verdict — then you see the answer key.
1
The task
Gadfly reads it aloud
2
Clarify requirements
functional & non-functional
3
High-level design
blocks and arrows on the board
4
Deep dive
Gadfly probes the bottlenecks
5
Wrap-up
report lands in History
Solve
Just you and the board — no coach in the room. The key still waits at the end.
With Gadfly
Gadfly asks, pushes back and probes your diagram. The board stays yours.
Mock
Gadfly is the interviewer: minimal help, timed phases, a graded report in History.
Session languageRussianThe session runs in Russian — easier to think out loud. The interface stays in English either way.EnglishThe whole session in English — the language of the real interview. The interface stays in English either way.voice and conversation only — the screen stays in English
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Every question that gets asked
The tasks above come with a full brief and an answer key at the end. Everything here you can still run as a session — Gadfly conducts it from the question, the way a real interviewer does.
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