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SystemRound
the go-to place to prepare for system design interviews
Practise system design interviews step by step, Entry level to Staff, SystemRound grades each step like an interviewer: it quotes your own words, flags the mistakes that fail interviews and links the lesson that fixes them. Free to start.
Hi Product Hunt 👋
I built SystemRound because practising system design interviews alone is hard. You can read a hundred write-ups, but nobody tells you where your design would fail.
How it works: pick a real problem (URL shortener, chat, ticket booking, a RAG assistant…) and a level from Entry to Staff. You answer one step at a time, on a whiteboard and in short answers. Every step is graded like a real interviewer would: • it quotes the exact sentence that would fail, and explains why interviewers care • it asks one follow-up question on your weakest point • it links the lesson that fixes it, and lets you revise and re-check
At the end you get a result for each level, and a coach plans your next sessions around what you missed, up to your interview date.
Does the grading hold up? I asked Claude Opus 5.5 to test it against a popular alternative: the same 12 answers, 6 with a hidden mistake. SystemRound spotted 5 of the 6. The other spotted 3 and called 3 broken designs "great". Screenshots are in the gallery.
Free to start: every lesson, the coach and 4 guided sessions every month. No card needed.
I'd love your honest feedback. Try one problem and tell me what the grader got wrong. I read every comment today. 🙏
About SystemRound on Product Hunt
“the go-to place to prepare for system design interviews”
SystemRound was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #316 on the daily leaderboard. Practise system design interviews step by step, Entry level to Staff, SystemRound grades each step like an interviewer: it quotes your own words, flags the mistakes that fail interviews and links the lesson that fixes them. Free to start.
On the analytics side, SystemRound competes within Education, Software Engineering and Artificial Intelligence — topics that collectively have 604.2k followers on Product Hunt. The dashboard above tracks how SystemRound performed against the three products that launched closest to it on the same day.
Who hunted SystemRound?
SystemRound was hunted by grainstudio. 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.
For a complete overview of SystemRound including community comment highlights and product details, visit the product overview.
grainstudio