Contacted by recruiter on LI for a contract position (remote). First round: self serve coding similar to leetcode (dynamic programming question). Second round: in-person coding using my language of choice (C++) on topics of sparse linear algebra and image processing. Perhaps, I am not used to this type of interviews, but I found it a bit hard to communicate and understand how my solution needs to be delivered and what are the given requirements; the interviewee seemed to be distracted throughout the whole time, obviously switching between the windows; that made it a bit difficult to fully focus. At the end I could not answer on how to further optimize my final solution; it was only 2 minutes left. Was ghosted by the recruited afterwards. Even an automated reply would be nicer.
Interview questions [1]
Question 1
Coding of sparse vectors operations; 2d convolution followed up by optimization questions (you need to know the underlying math for all and ready to think fast).
Overall, the process took a little over two weeks, which felt a bit longer than I anticipated. After a quick screening, I went through two technical rounds focusing on coding and DSA concepts. One of the questions was a classic palindrome check; mid-way through, I realized it was something I had practiced on PracHub just days earlier. The final step was a casual behavioral interview. I was relieved to get an offer shortly after, which I happily accepted.
Interview questions [1]
Question 1
Given a string, determine if it is a valid palindrome considering only alphanumeric characters and ignoring case.
I applied online. I interviewed at Meta (Menlo Park, CA)
Interview
It's honestly striaght from leetcode tagged
There are no surprises if you do tagged you would be good and do well.
System design is much harder. Would recommend using hello interview.
Interview questions [1]
Question 1
Design Twitter and consider if it was suddenly an extremely low latency env
Grateful doesn't even begin to describe how I feel about landing this role. The interview loop was smooth and friendly. They kicked things off with a technical round where I faced a DSA question about verifying an alien dictionary. Lucky for me, the time I'd spent on PracHub paid off, as it had the same type of problem just days before. After that, I had a system design discussion and a behavioral interview. Everything felt very collaborative, and by the end, I received an offer that I was thrilled to accept.
Interview questions [1]
Question 1
Given a list of words written in an alien language and the order of letters in that language's alphabet, determine whether the words are sorted lexicographically (Verifying an Alien Dictionary). Walk through the comparison approach using a character-to-index map, the O(C) time complexity where C is total characters, and how you'd extend it to handle words with mixed-case letters or words containing characters outside the given alphabet.