BlackRock Software Engineer Interview Questions | Glassdoor

BlackRock Software Engineer Interview Questions

Updated Mar 17, 2017
53 Interview Reviews

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Software Engineer Interview

Anonymous Interview Candidate
No Offer
Positive Experience
Average Interview

Application

I applied through college or university. I interviewed at BlackRock.

Interview

Met the recruiter on the university career fair and was asked to applied online.
After that, I did one online program test(java) and some video recording interview.
Then was called for superday. There are four rounds, meeting with HR and software engineers.

Interview Questions

Other Interview Reviews for BlackRock

  1.  

    Software Engineer Interview

    Anonymous Interview Candidate in New York, NY
    No Offer
    Negative Experience
    Average Interview

    Application

    I applied online. The process took 2+ months. I interviewed at BlackRock (New York, NY) in February 2017.

    Interview

    Chaotic! HR does not know what they are doing and are disorganized. Full of miscommunication and last minute cancellations & rescheduling. They even kept wavering with the interview decision communications. Very unprofessional on the scheduling and logistics part. Interviews are normal. Mostly leetcode medium and easy difficulty questions and some OOPS trivia questions.

    Interview Questions

  2.  

    Software Engineer Interview

    Anonymous Interview Candidate
    No Offer
    Negative Experience
    Average Interview

    Application

    I applied online. The process took 4 weeks. I interviewed at BlackRock in February 2017.

    Interview

    completed their hacker rank challenge. And I was invited onsite. before the onsite, I asked in an email about the interview process and was told the morning sessions would be technical. It turned out to be more than 7 rounds of interviews through out the day. At some point, I asked my interviewer in the afternoon, "how many more rounds?" because at some point, you are just very tired mentally. But seemed like my interviewer had no idea and told me to wait in the room and see if anyone else will come in.
    And you would think .... after 7 rounds of interviews, if they were not interested in you, they would either email or call. But non of that happened. Last time I interviewed was 2014, maybe 2017 is one of those year where companies like Blackrock doesn't bother to talk to candidates that they don't want anymore?
    It's just very unfortunate. They will give you an info session about the company and say that their CEO/leadership feel everyone should know a little about finance or the business. During my 7 rounds of interview, no interviewer even spent 1 minute talking about the business.

    Interview Questions

  3. Helpful (1)  

    Software Engineer Interview

    Anonymous Interview Candidate in New York, NY
    No Offer
    Positive Experience
    Difficult Interview

    Application

    I applied online. The process took 2+ months. I interviewed at BlackRock (New York, NY) in January 2017.

    Interview

    Nicely designed, 4 back-to-back interviews, mixed behavior and technical questions. You should prepare a lot for Java concept questions such as the difference between Concurrent HashMap and synchronized HashMap and perhaps low-level knowledge.
    Asked about your background related to finance, why BlackRock? What do you want to get from BlackRock? Things like these.

    Interview Questions

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  5.  

    Software Engineer Interview

    Anonymous Interview Candidate
    No Offer
    Neutral Experience
    Average Interview

    Interview

    Applied online and then given a hirevue coding test + video interview question. The coding test was pretty standard java string questions and the hirevue video interview just asked why you majored in what you major. I do not know what comes next as thats all I got to. I assume the next step would be an onsite or phone interview.

  6. Helpful (5)  

    Software Engineer Interview

    Anonymous Interview Candidate in New York, NY
    No Offer
    Neutral Experience
    Average Interview

    Application

    I applied online. The process took 2+ months. I interviewed at BlackRock (New York, NY) in September 2016.

    Interview

    These is the description of video record and coding challenge. For video record, only one simplest behavior question. The coding challenge is a progressive problem, from simple string input process to finally sort string array.

    Interview Questions

    • For coding challenge, first they give you one string, using some special character to separate different stocks, and ask you to standardize them. Then the question become more and more difficult, like select the most profitable stock but each question can use the method in previous questions.   Answer Question
  7.  

    Software Engineer Interview

    Anonymous Interview Candidate in New York, NY
    No Offer
    Negative Experience
    Average Interview

    Application

    I applied online. The process took 1+ week. I interviewed at BlackRock (New York, NY) in September 2016.

    Interview

    Received an offer for the internship last year, but declined it. Returned to apply online to the full time position (was not reached out to by HR). First step is an online coding project/challenge, pretty extensive (takes several hours). Very disappointed to be told that there were no more spots for the year. Disrespect of my time. HR should take down out of date postings, especially ones that require such a time commitment to apply to.

    Interview Questions

    • coding project, as mentioned above.   1 Answer
  8. Helpful (56)  

    Software Engineer Interview

    Anonymous Employee in New York, NY
    Accepted Offer
    Positive Experience
    Average Interview

    Application

    I applied through college or university. The process took 4+ weeks. I interviewed at BlackRock (New York, NY) in February 2016.

    Interview

    Asked to do a coding test online. You have couple week to complete it, fairly easy. It also includes a video response for an interview question. Get invitaion to Superday couple days later.
    4 45-minute interviews back to back. 3 out of 4 consisted technical questions.
    Get offer one day after.

    Interview Questions

    • Coding test was about Java string manipulation.
      video response:Why BlackRock? why softeware engineer? Why BlackRock choose you?

      On site interview questions:
      1. Reserve a string in place

      2. Write a method that convert decimal to binary

      3. What’s is Singleton

      4. What are differences between Array and ArrayList in Java

      5. If you are going to design a phone directory, what data structure will you use?

      6. Calculates Fibonacci number Do it with recursion, and without recursion:

      e.g: I have an array, [3, 5, 4 ]. Return 3rd, 5th, and 4th Fibonacci number and store in an array and

      return it.

      What’s complexity of your algorithm?

      7. Return size of last word in a sentence.

      E.g.: String s = “Hello Wang”, return 4

      String s2 = “Hello ”, return 5

      String s3 = “”, return 0

      8. Input is a number > 9. Write a program stops when sum of all digits is less than 10.

      e.g. 38, 3+8 = 11; 1+1 = 2, stop

      9. What are differences between String, StringBuilder and StringBuffer in Java

      Hope it helps :)  
      Answer Question
  9. Helpful (6)  

    Software Engineer Interview

    Anonymous Interview Candidate in New York, NY
    No Offer
    Negative Experience
    Average Interview

    Application

    I applied online. The process took a week. I interviewed at BlackRock (New York, NY) in June 2016.

    Interview

    They asked to solve hackerRank test. Completed and recruiter directly called onsite saying I did hackerRank pretty well and they are skipping phone screening. Onsite 1 week later. 4 rounds all technical. Data Structure questions. Average level questions. Nothing unsolvable, simple yet requires in depth understanding of data structure in Java. Final round of onsite was a bit trickier. Was asked programming puzzle, was a bit different type of problem. Interviewer helped me solve the problem, then finally understood the problem type. Barring that problem, was able to solve more or less all other questions. All interviewers very helpful and pretty good. Overall Nice experience.

    But on downside, haven't got any reply yet, been 10 days already.No reply to follow-up email either. At least, they should give some feedback after they invite for onsite. Took a day off. So, pretty disappointed.

    Interview Questions

    • Questions related to array/string manipulations, recursion, Puzzle was a bit unexpected.   1 Answer
  10. Helpful (2)  

    Software Engineer Interview

    Anonymous Interview Candidate in San Francisco, CA
    No Offer
    Positive Experience
    Average Interview

    Application

    I applied through a recruiter. The process took 1 day. I interviewed at BlackRock (San Francisco, CA) in June 2016.

    Interview

    4 1:1 interview which happened for 45 min each Interview panel was friendly. know your java, algorithms and data structures

    what happens when you type a web site name and hit send
    diff between app server and web server
    white board reverse a linked list
    single ton java code
    diff between abstract class and interface

    Interview Questions

    • white board merge 2 unsorted arrays
      you have a stream of integers randomly coming from some source find top n elements and return it as an array
      some multi threading questions
      some questions on maps, lists
      synchronized block and methods.  
      Answer Question
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