Me postulé en línea. El proceso tomó 3 semanas. Acudí a una entrevista en Meta en ago 2010
Entrevista
An HR contacted me and said I should complete one of their three hardest puzzles. The puzzle was interesting, but the fact that I spent 2.5 days to do that (1 day was spent on submitting it in a correct way so that the puzzle robot accepts it), and it won't help when interviewing anywhere else, annoyed me.
I then had a phone interview.
The guy was very clever, which was nice.
The questions were: what is the most exciting project you had, and
white a function to multiply two arbitrarily large integers.
I spent quite a while writing a recursive solution for the problem, made some mistakes during that, but fixed those purely by myself. The interviewer did not provide any feedback during the process when I described my "way of thinking" and the programming, so I even had to ask whether he was on the line. With phone interview, not feedback is a bit too harsh, imho.
Then I was asked to write an iterative solution, and I completed it as well. I did not write the solutions easily, and my way of explaining was not perfectly clear and great, but I solved what I was asked.
Then the HR contacted me saying they won't consider me anymore this year. I politely asked for feedback, but got the answer that there is nothing to share. Quite surprising for a social-oriented company.
Unexpectedly, the first question in the technical round felt familiar. It was about finding a subset of strings with unique character concatenation — same problem I had worked through on PracHub a few days earlier. The interview included a recruiter screen followed by a rigorous pair of technical interviews where I tackled data structures and algorithms alongside system design concepts. After successfully answering a few more challenging DSA questions, I received an offer. The entire experience was intense but ultimately rewarding, and I happily accepted the position.
Preguntas de entrevista [1]
Pregunta 1
Given an array of strings, pick a subset whose concatenation contains no duplicate characters, and return the maximum possible length of that concatenation.
Standard cookie cutter interview with a coding interview, a system design interview and culture interview. The coding part is basically leetcode. The system design is what you can find on many youtube videos. The culture one is more tricky as they want to see that you fit Meta's culture, not that you were doing great at your existing company. So skills like dealing with conflict without calling in managers is sought after.
Preguntas de entrevista [1]
Pregunta 1
coding: I forgot, sorry
system design: design ticketmaster
culture: talk about past project; when you disagreed with a peer; how I resolved dissagreements, etc.
The interview felt more straightforward than I anticipated for a well-known tech giant. After a recruiter screen, I faced a technical round that included a DSA question about finding the lowest common ancestor in a binary tree. I was pleasantly surprised when I realized the exact problem had popped up in the algorithm practice section on PracHub during my prep. Ultimately, the experience was decent, but I chose to decline the offer as it didn’t align with my current goals.
Preguntas de entrevista [1]
Pregunta 1
Given a binary tree, find the lowest common ancestor of two given nodes in the tree.
