How top software engineers
prepare for interviews

“Hellointerview.com is the best! I bought the premium subscription, totally worth every penny. Apart from HelloInterview, I did not find any other resource which explains what is expected at Senior and Staff+.”

“Senior & staff roles require depth in system design. You are expected to go beyond classical textbook answers. HelloInterview is a great resource to understand the 'staff' bar.”

“For system design, I went through almost all the core system design questions and fundamentals on Hello Interview. This was actually my second time using Hello Interview to refresh my knowledge, and it helped a lot in rebuilding intuition quickly.”

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“Hello Interview plays a pivotal role in preparing for this round. Similar question was in 'Peer system design Library' on HelloInterview hence I was able to save time to optimise and answer multiple follow up questions.”

“Use Hello Interview. I can't emphasize enough how helpful their delivery framework and deep-dive videos were.”

“Hello Interview became an absolute game changer, especially for system design... Hello Interview's system design content is outstanding: theory lessons, technology overviews, cheat sheets, practice questions, and especially the videos.”

“I took 4 mock interviews with Hello Interview, intentionally choosing interviewers who gave critical and low/medium confidence feedback... Hello Interview helped me develop a structured approach.”

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“Practicing System Design on Hello Interview was done by reading and understanding the article first, then build it by doing recall, and practicing going from Entities → APIs → DBs → Scaling/Deep Dives.”

“For system design, I spent a lot of time using the platform and also performing timed self mocks... nothing was more helpful than the mock interview provided on the platform. If you have the money and are unsure...DO IT. Its well worth the money!!”

“I saw few Hellointerview free videos and their free articles on how to prepare for such rounds and I had to buy the premium as I felt it was a great resource for me to understand things and also what I was missingout.”

“I mainly focused on LeetCode and Hello Interview. Hello Interview was especially useful for system design practice and understanding how to structure my answers in a real interview setting.”

“I did 3 mock interviews with ex-Meta engineers on HelloInterview, and it helped me a lot fixing the gaps and setting the right direction for the interview.”