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Cheat sheet for system design interviews
A repeatable framework for system design interviews
A 16-page cheat sheet built for senior/staff software engineers: a 5-step answer framework, capacity estimation numbers, and 10 fill-in-the-blank playbooks for the questions that come up again and again — URL shorteners, rate limiters, chat systems, and more.
Hey Product Hunt 👋
I'm a software architect, and I built this because I kept seeing the same problem in system design interviews (both prepping for them and later reviewing them as an interviewer): candidates who knew the material but never imposed structure on their answer, and lost points for it anyway.
So I wrote down the actual framework — 5 steps, in the order interviewers grade for — plus playbooks for the 10 patterns that show up over and over (URL shortener, rate limiter, chat systems, news feed, notification systems, and more). Each playbook includes the likely deep-dive questions and the trade-offs worth saying out loud.
It's built to be used, not read once and forgotten — rehearse 3-4 playbooks closest to your target company's domain, keep the framework in your head, adapt on the fly.
Would love feedback from anyone who's been through this loop recently — what am I missing, what would you add for the next version?
16 pages is the right amount, not a 200 page monster I will never read. The fill in the blank playbooks are the real win, I actually finished a couple on a slow Friday and felt way sharper walking into my next loop.
About Cheat sheet for system design interviews on Product Hunt
“A repeatable framework for system design interviews”
Cheat sheet for system design interviews was submitted on Product Hunt and earned 0 upvotes and 2 comments, placing #36 on the daily leaderboard. A 16-page cheat sheet built for senior/staff software engineers: a 5-step answer framework, capacity estimation numbers, and 10 fill-in-the-blank playbooks for the questions that come up again and again — URL shorteners, rate limiters, chat systems, and more.
Cheat sheet for system design interviews was featured in User Experience (367.4k followers), Developer Tools (517.5k followers) and Tech (629.9k followers) on Product Hunt. Together, these topics include over 279.2k products, making this a competitive space to launch in.
Who hunted Cheat sheet for system design interviews?
Cheat sheet for system design interviews was hunted by Amr Essam. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Amr Essam