Questions d'entretien chez Facebook

Mis à jour le Oct 14, 2021

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Entretiens chez Facebook

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Facebook

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J'ai passé un entretien chez Facebook

Entretien

phone interview starting with introducing yourself followed by two code questions. The first coding question is very standard coding question and the second one is a little more related to facebook's certain functionality

Questions d'entretien
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J'ai postulé via un recruteur. J'ai passé un entretien chez Facebook

Entretien

I was contact by a recruiter out of the blue telling me how they are really impressed by my CV. From first moment the interaction felt very impersonal and hurried up. Yes I know you are reaching out to a lot of candidates but let's not forget you are still talking to a human. I then got scheduled for an interview which was cancelled last moment apparently because the interviewer was sick. We then moved on to reschedule. Two weeks later I show up for the (remote) interview. The interviewer was late 5 minutes and when he showed he did not really seem to bother. We then swiftly began the process. I struggled a lot understanding the interviewer accent who seemed even lazy to clearly articulate properly his words. He was talking but you were getting a sense that he did not really care if he was understood. I completely zoned out, but I answered well the coding questions which I share below. We then moved on to the product related questions which were pretty basic and what you typically find on the web. I answered, but the whole process was feeling like a disconnect and I had a feeling we were both there just because we had too. To sum up - worse interview process ever.

Questions d'entretien
  • Given the following data: Table: searches Columns: date STRING date of the search, search_id INT the unique identifier of each search, user_id INT the unique identifier of the searcher, age_group STRING ('<30', '30-50', '50+'), search_query STRING the text of the search query Sample Rows: date | search_id | user_id | age_group | search_query -------------------------------------------------------------------- '2020-01-01' | 101 | 9991 | '<30' | 'justin bieber' '2020-01-01' | 102 | 9991 | '<30' | 'menlo park' '2020-01-01' | 103 | 5555 | '30-50' | 'john' '2020-01-01' | 104 | 1234 | '50+' | 'funny cats' Table: search_results Columns: date STRING date of the search action, search_id INT the unique identifier of each search, result_id INT the unique identifier of the result, result_type STRING (page, event, group, person, post, etc.), clicked BOOLEAN did the user click on the result? Sample Rows: date | search_id | result_id | result_type | clicked -------------------------------------------------------------------- '2020-01-01' | 101 | 1001 | 'page' | TRUE '2020-01-01' | 101 | 1002 | 'event' | FALSE '2020-01-01' | 101 | 1003 | 'event' | FALSE '2020-01-01' | 101 | 1004 | 'group' | FALSE Over the last 7 days, how many users made more than 10 searches? You notice that the number of users that clicked on a search result about a Facebook Event increased 10% week-over-week. How would you investigate? How do you decide if this is a good thing or a bad thing? The Events team wants to up-rank Events such that they show up higher in Search. How would you determine if this is a good idea or not?
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J'ai postulé via un recruteur. J'ai passé un entretien chez Facebook en Mar 2021

Entretien

1. I got a call from FB Recruiter who found me through linkedin, and had first discussion of general experience and also asked 5 basic SQL and python questions. 2. Next round is 1hr technical interview, where code will be written in coderpad. Interviewer is very helpful and it is more like a conversation, rather than interview. Some basic hints for python coding is also there which you can refer in case you stuck somewhere. The questions are all available in Glassdoor here. Please refer them and practice well.

Questions d'entretien
  • Python questions: 1. Replace None value with previous value present in a list. 2. Given a ´dictionary, print the key for nth highest value present in the dict. If there are more than 1 record present for nth highest value then sort the key and print the first one. 3. Given two sentences, you have to print the words those are not present in either of the sentences.(If one word is present twice in 1st sentence but not present in 2nd sentence then you have to print that word too) 4. Forgot another question you have to pass all the cases, specially on edge cases. SQL questions: 1. Mostly % calculation, also refer the questions available here in Glassdoor. Next will be my Onsite Interview of 3.30hr. If anyone can help me on that or else I will update later on that interview as well.
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Facebook

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J'ai passé un entretien chez Facebook

Entretien

This was the WORST interview experience I’ve ever had in my life. I was eager to work for FB because of the glowing glass door reviews. I reached out to many people blindly on LinkedIn to ask for help in the hopes of a referral and luckily one person did this. Next, I met with HR who asked me about my background and skills and told me if I see something in the future and I am a match, I should have the FB employee refer me and HR Person #1 will be my “sponsor”. I did this many times and I was eventually contacted by HR person #2 about a role. HR Person #2’s emails to me were hot and cold (eager to meet one min., ghosting the next). After about three months of this, we had a phone interview and he punted me to HR Person #3 who would schedule the meeting via their interview website with the Team Leader and me. HR person #3 was lackadaisical in her response and I thought I was getting ghosted again or the system was broken. I followed up with HR person #2 and finally, the meeting was set. I met with the Team Leader for a video interview and I thought I did well however, at the end I got the passive aggressive decline statement of “Well, we’re still interviewing candidates, thank you for your time”. I asked HR Person #2 for the Team Lead’s email so I could send a thank you note and I was ghosted again! After I was given the chance to do a survey from FB and I wrote about my abysmal experience. Oddly, almost immediately after, many HR people reached out to me including HR Person #2 . He said the Team Lead was impressed with me and he wanted to set up a panel interview and introduced me to HR Person #4 who would take me through the next part . HR #4 and I spoke and he said “I’d be the person to make you an offer”. This statement angers me the most because HR should not say this unless you will do that. This statement made me think “wow - it seems like I have the job” because I HAVE heard this from HR people who have offered me jobs in the past. HR person #4 had me work with HR person #3 on giving my times for the panel interview through their online site again. FYI - if you want communication through this site, you should promptly respond to people in it. I consistently got mixed messaging and slow response times and emails were more efficient. I was always unsure what was the correct communication method. If you wanted this site to be used why do you ignore me when I communicate through it? HR person #4 also told me about their mentoring program and provided me the questions that the panel would ask me. Based on my research, I found out I needed to use the STAR method when giving responses. Regarding the “mentoring program” I found the direction of how to use it awful. The broad overview and the use of it was akin to a Boss saying “Come out for a happy hour if you want to go”. With those types of invites you always have to say “yes”. I reached out to three people for a “mentor” meeting. One ignored me (PATTERN!), the second questioned why I would reach out to her. The third was an awesome, super nice man. I spent a WHOLE WEEKEND prepping for an interview with four people. During the interview, three seemed very impressed with my responses and background and also made it seem that the job was mine. The last person I met with was the person who would be my manager. Sadly, she was not invested at all in this meeting. She questioned my background and made a rude digs at my various career choices which was unkind. After, I sent everyone thank you notes in the system and via their email (mixed messaging from the panel as well on how to communicate) and I kept in touch with HR #4 on how it went. I was informed about a week later that I did not get the job with a poorly written, grammatically incorrect recycled note. No specific feedback was given as to why I was not chosen. However, I was told the team I met with liked me a lot and supported me for other opportunities. I looked on LinkedIn to see who accepted the job and what skills they had VS mine. Oddly, the job was immediately re-posted on LinkedIn which I found extremely befuddling. Upon further LinkedIn sleuthing, they already had a person in this role?! Over time I reached out to recruiter #4 regarding opportunities that I could fulfill but nothing materialized. Upon more sleuthing on LinkedIn, I see that the reason why the Hiring manager I met with was not invested in the meeting is she had a coworker from her prior employer that she wanted to put in this role. The purpose of me interviewing was most likely fulfilling an HR metric. To potential candidates interviewing here - don’t waste your time. The amount of time I spent interviewing here was too much (spoke with 11 people and devoted too many HOURS to this). The confusion, lack of communication and the disrespect I received was abhorrent. Don’t give them the satisfaction of using you as an HR metric as well.

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Facebook

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J'ai postulé via la recommandation d'un employé J'ai passé un entretien chez Facebook

Entretien

First call was with the recruiter, who was interested in why I was looking for a change in job, why facebook etc. these type of questions. Initial Phone Screen Round (Coding), followed by onsite rounds. Onsite Round: 2 Coding Rounds, 1 behavioural and 1 System Design Round Coding Topics covered: Linked List, Arrays/Strings, Recursion, Trees, Graph Traversals. Time/Space Complexities were discussed.

Questions d'entretien
  • In Phone Screen round, 2 coding questions were asked in 40-45 min.
  • Virtual Onsite Rounds: 1 .System Design Round : Was asked to tackle a very specific problem in 40-45 min, I think I got the logic right but as I was preparing these type of questions on a very generic level, like the ones we used to see on youtube, blogs etc. so I guess I am not very structured in my answer when the question is about the very particular problem, not a general design a system question. Although, interviewer looks satisfied with the approach, but sadly in the feedback, it was mentioned that I failed this round. I expected that I had done pretty well in this to pass it😅.
  • Virtual Onsite Rounds: 2. Behavioural Round: This was the normal behavioural round where they tend to know in around 40-45 min whether you culturally fits into facebook.
  • Virtual Onsite Rounds: 3. First Coding Round: Again 2 Coding Questions were asked in around 40-45 min , level was slightly up than the phone screen round. It went pretty smooth for me, and I successfully passed it too.
  • Virtual Onsite Rounds: 4. Second Coding Round: Similar as First Coding Round, but this time my experience was not that good, I was pretty confident that I proposed the best solution for the first question, but I guess interviewer found little hard to understand my approach, he asked to explain it multiple times through different examples and then asked to implement it and I though he sounds satisfied with the approach at the end, he asked me to come with some of the test cases but he didn't propose any test case from his side where my approach could fail, in all these I lost around 30 min in the allotted 45 min, interviewer quickly jumps to second question (I guess, there is some unsaid rule in FB coding rounds where interviewer has to ask 2 coding questions), in second question too thought I came up with the optimised sol. after some healthy discussions with the interviewer, but he again asked to optimise it more, at last as time was running out, he asked to implement the solution, I guess not even 5 minutes are left and I had to implement a modified Graph Traversal algorithm (BFS/DFS) in a matrix, as expected my solution remained incomplete. At last, I asked the interviewer what could be the more optimised approach than this for the 2 question, he told an approach, I didn't argue then but on analysing his approach afterwards, I think it is not optimising the solution in any better way. Although I expected that I can pass the second coding round too as I came up with the sol. for first question and my approach was somewhat correct for second question too (that's why interviewer asked to implement it), but it was not the case, as I failed the second coding round. I had the feeling that in my second coding round, interviewer was not well prepared, he was kind of reluctant for the approaches he had in his mind, although I don't know, I might be wrong. I was confident in my approaches and I cross-checked them too over the web after the interviews. Learnings: For Facebook, focus more on System Design skills, in coding rounds approach and the way of thinking counts less, what counts is your solution, and that too in some cases the solution which interviewer is expecting😅.Try to come up with perfect solution for both the questions in the coding rounds within the allotted time
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J'ai postulé via un recruteur. J'ai passé un entretien chez Facebook en Aug 2021

Entretien

Reached out by recruiter. Technical screening, 1hr, 5 python, 5 SQL You will be able to see the test cases as you're coding. For SQL questions you can query the database to check the data. I got 9.5 out of 10 questions correct. The last SQL questions I got incorrect, but the interviewer said my logic looked right. Waiting for response.

Questions d'entretien
  • Write a function to return the number of times a character appears in a string. The character can be the empty string.
  • Complete a function that returns a list containing mismatched words in two strings. The return list can be in any order. I used set to solve this question, but was also asked to verbally explain how I would solve it without using sets.
  • Given an array containing None values, fill in the array with the most recent None value. If the list starts with None, then don't do anything to it.
  • Given a dictionary, print the key for nth highest value present in the dict. If there are more than 1 record present for nth highest value then sort the key and print the first one (alphabetically). N can be higher than the number of elements in the dictionary.
  • Given a list of ints, balance the list so that each int appears equally in the list. Return a dictionary where the key is the int and the value is the count needed to balance the list. [1, 1, 2] => {2: 1} [1, 1, 1, 5, 3, 2, 2] => {5: 2, 3: 2, 2: 1}
  • What percent of all products in the grocery chain's catalog are both low fat and recyclable?
  • What are the top five (ranked in decreasing order) single-channel media types that correspond to the most money the grocery chain had spent on its promotional campaigns? media_type can contain mutliple values seperated by a comma, so single channel is when media_type only has one value.
  • Percent of sales that had a valid promotion, the VP of marketing wants to know what percent of transactions occur on either the very first day or the very last day of a promotion campaign.
  • Write a query that returns product_family, units_sold, percentage of promoted.
  • Write a query that returns percentage of unsold product_category.
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J'ai passé un entretien chez Facebook

Entretien

Phone Screen (1 45 minute interview) + Onsite (3 45 minutes interviews). All technical challenges (2 per interview) were leetcode Medium/Hard + one fo the on-site interview was strictly behavioral (no coding).

Questions d'entretien
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Facebook

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J'ai passé un entretien chez Facebook

Entretien

Normal. LC 215 with a follow up of using a heap with 1/2 length of the input array. Interviewer is pretty nice. But only did one question with 20 min left.

Questions d'entretien
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Facebook

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J'ai passé un entretien chez Facebook

Entretien

Long and difficult interview process. Interviewed with 10 different people and one panel interview. After several months of preparing and doing these interviews and feeling good about them, I heard NOTHING.

Questions d'entretien
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J'ai passé un entretien chez Facebook

Entretien

Organized on the front end, but ended up taking two weeks to hear back after the first round. Recruiter helps prepare candidate prior to interview process. Definitely well structured conversations.

Questions d'entretien
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