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Debug watch list movie operationsAmazon · Software EngineerMediumJun '26
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Implement interval room counter and token managerMicrosoft · Software EngineerEasyApr '26
Design a single-node persistent in-memory cacheDatabricks · Software EngineerHardJun '26
Improve a classifier with noisy multi-annotator labelsOpenAI · ML EngineerHardJun '26
Write SQL for video-call recipients and FR activityMeta · Data ScientistMediumMar '26
Design a restaurant waitlist systemGoogle · Software EngineerMediumApr '26
Explain logistic regression, backprop, and AdamLinkedIn · Data ScientistMediumJun '26
Design GPU inference request batchingAnthropic · Software EngineerMediumJun '26
Design a food delivery cartUber · Software EngineerMediumApr '26
Measure bird species segregationGoogle · Data ScientistMediumJun '26
Design and optimize a RAG systemOpenAI · ML EngineerMediumJun '26

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What candidates say after their interviews.

u/Stuff_Artistic

Reddit · post

PracHub is awesome

If you're prepping for tech interviews, give PracHub a look. It helped me when I was getting ready, especially with their 8,000+ real candidate interview questions. What I liked most was the range of categories: coding, system design, even ML questions. I felt more prepared for the system design parts of my interviews because the questions seemed to line up with what I got asked.

PracHub Discord

Discord · member message

Discord message: "I was searching for a vaguely remembered question from an onsite and I was able to find the clear question on your website. Then I happen to see lot of similar questions from my onsite experiences for senior+. If I discovered you much earlier I would have made it to ~500k already."

u/PLTCHK

r/leetcode · Top 1% commenter

I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s

Brian Yan

X · @BrianYan19

Spent weeks prepping for a Meta interview with PracHub. Loved that all questions were from real interview experiences, real candidates sharing what they faced. The built-in code editor helped me nail those tricky coding questions. Feeling more confident now!

u/_The_TaNk_

r/leetcode · comment

Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged.

r/datasciencecareers

Posted by u/nian2326076

I Just Found the English Version of 1point3acres… PracHub Is Literally Cheating for Tech Interviews

I just found this new cheating website for interview prep: PracHub.com. I think they may have just been released a few weeks ago, not sure why it hasn't gone viral yet.

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