Meta Software Developer interview questions

Just a very normal phone screen process. First we had 5-minute Introduction, then two technical questions, and ends by asking questions to the interviewer. The technical questions are answered on their codepad and no test cases were given. The interviewer spots to see any mistake in logic. Running time questions are asked also.

Interview consists of 2 stages. First a technical screen stage where you have option to take it over phone or take it in person onsite. Typically an average difficulty level leet code programming question is asked for this round. The tips to succeed in this stage is first to ask for the clarifications as soon as the question is asked, then orally discuss and come up with an optimized solution and only then start coding. DO NOT assume anything and if doing, first discuss it with the interviewer. While coding, keep special attention towards handling all the corner cases and error cases. Once done coding, come up with at least 3 test cases and walk through the code for these test cases. Handling of corner cases has a huge weightage in the interview. Second stage is the series of onsite interviews. Generally there will be 4 interviews 45 mins each. 1 will be system design interview, 1 will be resume deep dive and behavioral and rest 2 will be coding interviews. For coding interviews, again leet code average difficulty level question will be asked and they are evaluated based on how quickly you come up with a solution, how you optimize your approach and eventually come up to most optimized approach, how cleanly you code and how you think of all possible scenarios/test cases while implementing the code. Ideally, you should be done with all of the above within 30-35 mins so you have some time to discuss about your implemented code as well as ask questions to interviewers. For system design interview, a distributed system design question will be asked and you need to discuss in details regarding the system before talking about its design. Interviewer will try to take the discussion in depth in some particular direction, so go with the flow and let him analyze your skills. Be as verbose as possible. Finally the resume deep dive interview will be in depth discussion of projects mentioned on the resume. Be thorough with all the projects, skills mentioned on resume. My interview experience was good. I cleared the technical screen and gave the onsite interviews but did not get an offer. All the interviewers were nice and soft spoken and they made me feel comfortable. Interview process was quick enough and they provide you enough time to prepare if you ask for it. I was contacted by recruiter in late February, i scheduled by technical screen in mid April, got the result within 2 days and then scheduled onsite in mid May. The result of this too was communicated within 2 days. Questions are below