Google Engineering Interview Questions | Glassdoor

Google Engineering Interview Questions

Updated Feb 19, 2017
3,543 Interview Reviews

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  1. Helpful (1383)  

    Software Engineer Interview

    Anonymous Employee in Mountain View, CA
    Accepted Offer
    Positive Experience
    Difficult Interview

    Application

    I applied through an employee referral. The process took 4 weeks. I interviewed at Google (Mountain View, CA) in April 2014.

    Interview

    Direct onsite because I interviewed in the past and did well that time. From the time I sent my resume to interview day: 2 weeks. From interview day to offer over the phone: 2 weeks.

    The syllabus for the interviews is very clear and simple:
    1) Dynamic Programming
    2) Super recursion (permutation, combination,...2^n, m^n, n!...etc. type of program. (NP hard, NP programs)
    3) Probability related programs
    4) Graphs: BFS/DFS are usually enough
    5) All basic data structures from Arrays/Lists to circular queues, BSTs, Hash tables, B-Trees, and Red-Black trees, and all basic algorithms like sorting, binary search, median,...
    6) Problem solving ability at a level similar to TopCoder Division 1, 250 points. If you can consistently solve these, then you are almost sure to get in with 2-weeks brush up.
    7) Review all old interview questions in Glassdoor to get a feel. If you can solve 95% of them at home (including coding them up quickly and testing them out in a debugger + editor setup), you are in good shape.
    8) Practice coding--write often and write a lot. If you can think of a solution, you should be able to code it easily...without much thought.
    9) Very good to have for design interview: distributed systems knowledge and practical experience.
    10) Good understanding of basic discrete math, computer architecture, basic math.
    11) Coursera courses and assignments give a lot of what you need to know.
    12) Note that all the above except the first 2 are useful in "real life" programming too!

    Interview 1:
    Graph related question and super recursion

    Interview 2:
    Design discussion involving a distributed system with writes/reads going on at different sites in parallel.

    Interview 3:
    Array and Tree related questions

    Interview 4:
    Designing a simple class to do something. Not hard, but not easy either. You need to know basic data structures very well to consider different designs and trade-offs.

    Interview 5:
    Dynamic programming,
    Computer architecture and low level perf. enhancement question which requires knowledge of Trees, binary search, etc.

    At the end, I wasn't tired and rather enjoyed the discussions. I think the key was long term preparation and time spent doing topcoder for several years (on and off as I enjoy solving the problems).

    Conclusion: "It's not the best who win the race; it's the best prepared who win it."

    Negotiation

    You can and should negotiate politely. You are in a stronger position if you have another offer, but even otherwise, you should ask for more of every type of payment!

  2. Helpful (1107)  

    Software Development Engineer Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Easy Interview

    Application

    I applied through college or university. The process took 2 weeks. I interviewed at Google in April 2015.

    Interview

    Phone interview:
    The Interviewer was late for 20 mins... Ask nothing on my resume.
    Tow questions:
    1) A string consists of ‘0’, ‘1’ and '?'. The question mark can be either '0' or '1'. Find all possible combinations for a string.
    2) Give you a text file, remove duplicated lines.
        Follow up: If the file is very large, general hash map takes too much spaces, come up with a better solution.

  3. Helpful (596)  

    Software Engineer Interview

    Anonymous Employee
    Accepted Offer
    Positive Experience
    Difficult Interview

    Application

    I applied online. I interviewed at Google.

    Interview

    I first had a phone screen interview. After this, I was asked to come onsite for further interviews. I had 4 whiteboard and 1 lunch interview with the Youtube team. After this, I was told that my application is going through the Hiring Committee.

    Hiring committee asked my HR to find a team for me before giving any decision. I then had two phone interviews with different teams in Android. I informed my HR that I am interested in the first team. Next day, HR emailed me and said that this team no longer has an open position. I again went through the same process. This time, platform team was interested in talking to me. I gave 2 phone interviews wherein they made me write code. After their feedback, I was put through the Hiring committee again and this time I got a thumbs up from them. 1 week after that I was put through executive committee and got my offer.

    I had 7 other offers and my HR asked me about all of them before putting me through executive review. They gave me more than any other company I had offer from.

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  5. Helpful (508)  

    Software Engineer Interview

    Anonymous Interview Candidate in Mountain View, CA
    No Offer
    Positive Experience
    Average Interview

    Application

    I applied through an employee referral. The process took 4+ weeks. I interviewed at Google (Mountain View, CA) in July 2015.

    Interview

    The interview went seemingly smoothly, except for a couple quirks in the code on the whiteboard. The questions were way easier than I expected. The interviewers were not intimidating at all and did not try to make the process stressful. I felt like I passed and according to HR, the overall feedback was positive. My application went to the hiring committee which, in turn, rejected the offer.

  6. Helpful (267)  

    Software Engineer Interview

    Anonymous Interview Candidate in Mountain View, CA
    No Offer
    Positive Experience
    Easy Interview

    Application

    I applied online. The process took 4+ weeks. I interviewed at Google (Mountain View, CA) in September 2015.

    Interview

    Awesome process. Very simple questions. Keep your nerves cool. Don't worry about very complex questions on the Internet. Do basics and you should be good. I screwed up two simple questions and not expecting offer. I will apply again next year .

  7. Helpful (1)  

    Software Engineer Interview

    Anonymous Employee in Mountain View, CA
    Accepted Offer
    Positive Experience
    Difficult Interview

    Application

    I applied through a recruiter. I interviewed at Google (Mountain View, CA).

    Interview

    Skipped the phone screen and went straight to onsite interview. Recruiter wasn't in the office that day and there were a few logistical hiccups in the morning but otherwise went fine.

    Interview Questions

  8. Helpful (1)  

    Software Development Engineer Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Average Interview

    Application

    I applied online. I interviewed at Google.

    Interview

    Took an online quiz that was relatively simple. Then another that was harder.

    Then there were two phone interviews about two questions each.

    Went to Google Mountain View in November and had four interviews. Wasn't too easy.

    Interview Questions

  9. Helpful (1)  

    Software Engineering Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Average Interview

    Interview

    Hiring process was alright. Recruiters were understanding. Even called me to tell my rejection lol. Questions weren't very tough. I expected a much higher level. Study ctci. Practice as much as you can - hackerrank, leetcode etc. You need not be competitive programming standard.

    Interview Questions

    • Can't reveal questions because of NDA signed. Practise ctci and leetcode and you should be fine.   Answer Question
  10. Helpful (1)  

    Software Engineer - University Grad Interview

    Anonymous Interview Candidate
    Declined Offer
    Positive Experience
    Easy Interview

    Application

    I applied online. The process took 5 weeks. I interviewed at Google.

    Interview

    an online coding challenge first, then the recruiter reaches out to you for a phone screen. They will match you with a team and do some coding interviews over the phone. After the phone interviews, if they think you're a good fit, they will invite you to the campus and have a full day onsite interview with four other engineers. Overall process is very long, the recruiter is nice but not on time about things.

    Interview Questions

    • some basic string manipulation and 2d array questions, also asked about data structures and when to use which.   Answer Question
  11. Helpful (1)  

    Software Engineer Interview

    Anonymous Interview Candidate
    No Offer
    Neutral Experience
    Average Interview

    Application

    I applied online. I interviewed at Google.

    Interview

    Applied online and quickly got back an email with a link to a coding challenge. Did the coding challenge and wasn't able to complete the entire problem which might explain why they never got back to me. Regardless, they never got back to me.

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