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Everything a software engineer needs to prep for technical rounds - real coding challenges, Android system design breakdowns, AI mock interviews, and guided practice.
The idea for returnzero came from a real gap I kept hitting.
Sites like Hello Interview do a great job with distributed system design deep dives, but I couldn't find anything like that for Android system design - the kind of questions you actually get asked in mobile engineering interviews. So I built it.
returnzero has everything you need for technical rounds in one place: system design breakdowns (Android now, distributed and AI later), in-browser coding, AI mock interviews, and spaced repetition practice.
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About returnzero.dev on Product Hunt
“Land your next tech interview”
returnzero.dev was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #152 on the daily leaderboard. Everything a software engineer needs to prep for technical rounds - real coding challenges, Android system design breakdowns, AI mock interviews, and guided practice.
returnzero.dev was featured in Android (57.4k followers), Education (79k followers) and Software Engineering (42.8k followers) on Product Hunt. Together, these topics include over 84.2k products, making this a competitive space to launch in.
Who hunted returnzero.dev?
returnzero.dev was hunted by Rotem Meidan. 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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Rotem Meidan