DesignGraph teaches you system design the way the best tutors do — by putting you at the exact edge of what you know, every single session. No passive videos. No generic case studies. Just deliberate practice, calibrated to you.
Fifty years of cognitive research, applied to system design. No shortcuts, no filler, no guesswork about what to study next.
Every concept has a sharp definition and a bar to clear. You only advance once you can apply it — not just recognize it. No "passed the quiz and forgot it" energy.
Every answer updates a live model of what you know. Each session picks the exact next problem sitting on your frontier — hard enough to stretch you, easy enough to solve.
The forgetting curve is real. We pull concepts back into your review queue at the moment they'd start to decay — so what you learn actually sticks to interview day.
You're not watching. You're solving — drilling trade-offs, sizing systems, defending your choices. The grader reads your answer the way a senior FAANG interviewer would.
Caching, quorum, queueing, idempotency — jumbled the way a real design round demands. You build transfer, not memorized solutions to memorized prompts.
Your dashboard shows which sub-skills are interview-ready, which are shaky, and which are missing. No vanity metrics — just truth.
"Most people prep for system design by reading. Reading feels like learning. It isn't. What you need is thousands of small, calibrated reps."
— the principle behind DesignGraph
Less than a single hour with a prep coach. More effective than a semester of them.
7-day money-back guarantee · Cancel any time · No ads, no upsells
Your first session takes 30 minutes. By the end, you'll know exactly where you stand — and what to do next.